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Janus Henderson and asset tokenization platform Centrifuge have announced JQQQ, a fund designed to track the Nasdaq 100 Index. The tokenized fund, to be issued on the Stellar network, will provide blockchain-based access to the US equity market. In their October 27 announcement, the companies said the product was developed under an index licensing agreement with Nasdaq.Janus Henderson, which manages approximately $500 billion in assets, is expanding its onchain investment offerings with the new product. The Nasdaq 100 includes major companies such as Nvidia, Apple, and Microsoft. JQQQ aims to give investors exposure to the index’s performance through a tokenized fund.JQQQ Sets a Minimum Investment of 100,000 USDCThe fund initially targets eligible professional investors outside the United States. According to The Defiant, citing Centrifuge’s investment portal, the minimum subscription will be 100,000 USDC. Investors will therefore use the dollar-backed stablecoin to subscribe to the fund.However, the announcement does not necessarily mean the fund has started accepting investments. The same report states that Centrifuge’s portal shows subscriptions are not yet open. The product’s announcement and the date investors can actually subscribe are therefore separate milestones.How Nasdaq’s License and Fund Management Roles DifferOfficial documents also outline the fund’s legal structure. JQQQ is a segregated portfolio of Anemoy Capital SPC Limited, a company based in the British Virgin Islands. Anemoy Asset Management serves as investment manager, while Janus Henderson Investors US LLC acts as sub-investment manager.Centrifuge provides the fund’s blockchain infrastructure. Nasdaq’s role covers licensing the index; the company does not act as the fund’s issuer or guarantee the investment. Disclosures accompanying the announcement specifically state that Nasdaq does not endorse, sell, or promote the product.Nasdaq 100 Move Follows S&P 500 CollaborationJQQQ extends the companies’ efforts to bring equity indexes onto blockchain infrastructure. S&P Dow Jones Indices announced a collaboration with Centrifuge to tokenize exposure to the S&P 500 Index on July 1, 2025.That project envisioned a fund structure involving Anemoy Capital and Janus Henderson. According to S&P Dow Jones Indices’ announcement, the investment product would be built on Centrifuge’s infrastructure, with investors accessing it through blockchain technology. The JQQQ announcement extends that approach to another major US equity benchmark.Janus Henderson’s partnership with Centrifuge began earlier with US Treasury bills. In September 2024, the company announced a strategic partnership involving Anemoy’s Liquid Treasury Fund. The product aimed to provide investors with access to short-term US Treasury bills.At the time, Janus Henderson said it would take on portfolio management responsibilities through its subsidiary Tabula. Its expansion from Treasury bills to equity indexes shows how the company is incorporating different asset classes into tokenized fund structures.According to Janus Henderson’s latest announcement, its onchain institutional investment strategies now exceed $1 billion in total assets. That figure covers US Treasuries, structured credit, and equities; it does not represent the size of JQQQ alone.
GoldZip, which is affiliated with the Hong Kong Gold Exchange (HKGX), will use Chainlink infrastructure to bring its physically backed gold token, XGZ, to additional blockchains. The initiative, developed with Midas Labs, aims to integrate Chainlink’s Cross-Chain Interoperability Protocol (CCIP) with XGZ. This will expand the token’s reach beyond its current deployment on Ethereum.Chainlink’s October 27 announcement connects the traditional gold market with digital asset infrastructure. According to project documentation, each XGZ token represents one gram of 99.99% pure physical gold held in vaults. The integration will enable transfers of the gold-backed asset across supported networks.Gold-Backed XGZ Expands Beyond EthereumGoldZip currently offers XGZ on Ethereum as an ERC-20 token. Users can hold it in compatible wallets and trade it on supported platforms. The new initiative aims to extend the token’s availability to other blockchains.CCIP provides shared infrastructure for transferring tokens and messages between blockchains. Asset issuers can incorporate their own approval processes, transaction limits, and compliance checks into transfers. Chainlink aims to help institutional assets operate under consistent rules across different networks.GoldZip’s goal is to give its physically backed token access to a broader digital marketplace. However, the announcement does not specify which additional networks will support XGZ or when they will launch. It therefore describes an integration in progress rather than a completed multichain rollout.GoldZip was also among the launch partners for CCIP 2.0, which Chainlink introduced on September 28. The announcement included organizations such as Fidelity International, Deutsche Börse Group’s Crypto Finance, Google Cloud, and SBI Digital Markets. The latest update provides a clearer picture of how GoldZip intends to use the partnership for XGZ.Each Token Represents One Gram of GoldAccording to GoldZip’s official product information, the company uses one-kilogram gold bars that meet specific standards to back token issuance. After verification of their purity, the bars enter depositories recognized by HKGX. The company then issues tokens on the blockchain against this physical backing.Although the token supports fractional ownership, separate conditions apply to physical redemption. GoldZip requires 1,000 XGZ to redeem one eligible one-kilogram gold bar. Users must also meet the relevant eligibility requirements, including identity verification and anti-money laundering checks.The official website lists a total token supply of 39,000 XGZ, corresponding to 39 kilograms of gold. These figures reflect the product data published by the company. GoldZip’s transparency page also offers a lookup system that matches token balances with gold bars held in vaults. The company notes that these records rely on periodic snapshots and do not update in real time. The same page currently lists independent auditor reports as “coming soon.”Midas Labs Partnership Targets Institutional Gold MarketsThe Chainlink integration builds on GoldZip’s partnership with Midas Labs, announced in June. At the time, GoldZip named Midas Labs as its Web3 technology partner for developing an institutional digital gold ecosystem.The partnership covers the development of digital services for HKGX’s approximately 150 institutional members. Midas Labs is responsible for building the trading technology and underlying infrastructure that connect physical gold reserves with digital asset markets.In August, GoldZip also announced an initiative involving Universal, the UAE-based issuer of USDU. The memorandum of understanding between Universal and Midas Labs aims to explore products that could connect regulated stablecoin infrastructure with Asia’s digital gold market.
A crypto asset’s price alone does not explain its economic model. The number of circulating tokens, who will receive the remaining supply, and their uses also matter. Tokenomics provides a framework for examining these factors together. Two projects using the same technology can experience different outcomes because of their distribution and incentive models. This guide explores the main elements of token economics, supply calculations, and what to consider when evaluating a project.What Is Tokenomics, and What Does It Explain?Tokenomics combines the words “token” and “economics.” It describes a crypto asset’s economic structure, from issuance and distribution to use. Supply rules, participant incentives, and decision-making authority all form part of this structure.The basic principles of token economicsUnderstanding what a token is provides a useful starting point. A token is a digital asset created on an existing blockchain that can serve specific functions. However, tokenomics also describes the economic models of coins with their own networks. Bitcoin’s supply limit and halving mechanism fall within this broader scope.Examining an economic model involves three main questions:How is the asset created, and who receives it?Why do users buy or hold the asset?Where do the incentives that sustain the system come from?These questions help explain the structure behind price movements. However, tokenomics does not provide a method for calculating future prices with certainty.Similarities to and differences from traditional economicsSupply, demand, incentives, and resource allocation also play central roles in traditional economics. Crypto economic models can manage some of these relationships through code and smart contracts. Distributed ledger accounting makes transfers and certain supply changes easier to track. However, economic decisions are not necessarily automatic or unchangeable.Treating a token like a company share can also be misleading. Owning tokens does not automatically provide equity ownership or dividend rights. The scope of those rights depends on the project’s rules and applicable regulations. Economic expectations therefore need to be examined separately from the rights holders actually receive.Supply, Distribution, and Token UnlocksCryptocurrency supply involves more than a single figure. The amount available in the market today may differ from the amount that could exist in the future.Circulating supply, total supply, and maximum supplyUnderstanding supply data requires distinguishing three concepts:ConceptWhat does it describe?Circulating supplyThe amount considered to be circulating in the market under the data provider’s methodologyTotal supplyThe amount issued minus tokens permanently removed through burningMaximum supplyThe theoretical upper limit under the protocol’s current rulesTotal supply can include locked tokens. Maximum supply may include tokens that have not yet been issued; some projects have no fixed cap. Therefore, stating that “the entire supply has been issued” does not mean every token is circulating. Some issued tokens may remain locked in team, investor, or treasury wallets. Data platforms may also define circulation differently. When making comparisons, check the date and calculation methodology behind each figure.Token allocation and vesting schedulesToken allocation shows which groups receive portions of the supply. Common categories include the team, early investors, community, treasury, and ecosystem funds. However, allocation percentages alone do not explain when those tokens become available. That requires examining the vesting schedule.Distribution methodMain characteristicImmediate releaseA specified amount becomes available at the initial stageCliffA waiting period applies before the first releaseLinear vestingTokens unlock gradually over a defined periodPeriodic unlocksSpecified amounts become available on scheduled datesConditional vestingDistribution depends on predefined milestones or conditionsSmart contracts can implement customizable vesting schedules. However, their permissions and potential for modification also require examination. An unlock allows the beneficiary to use the tokens. It does not mean those tokens will be sold on the same day. Nevertheless, large unlocks can increase the amount potentially available for sale. Early investors’ acquisition costs and market liquidity matter when assessing the possible impact.Assessing the size of a token unlockConsider a hypothetical project with 100 million tokens in circulation. Suppose an upcoming unlock will release another 10 million tokens. That amount equals 10% of the existing circulating supply. Even if maximum supply is 1 billion, focusing only on that maximum could understate the near-term impact.When evaluating an unlock, examine these factors together:Which group owns the tokens.The amount becoming available relative to circulating supply.Whether the unlock is a one-time event or recurring.Exchange order book depth and liquidity.Beneficiaries’ previous transfers.A transfer to an exchange does not provide definitive proof of a sale. The data does not always reveal the full purpose of a transaction. Token Utility, Incentives, and Supply ChangesScarcity explains only one side of token economics. Understanding lasting demand also requires examining why users need the asset.The connection between utility and token demandA token can provide access to services, facilitate payments, serve as collateral, or support governance. However, project growth does not guarantee a proportional increase in token demand. For example, a platform may collect service fees in other assets. Its user base could grow while demand for its own token remains limited.The connection between the project’s value proposition and the token’s function therefore deserves attention. How the product’s success benefits token holders should be clear. Governance tokens can provide voting rights over protocol changes or treasury spending. However, the implementation of votes and the scope of authority vary between projects. Concentrated token ownership can also concentrate decision-making power. Wallet counts alone cannot establish whether participation is balanced.Where staking and yield farming rewards come fromUnderstanding staking helps explain token incentives. On Proof of Stake networks, staking involves committing assets to the network’s validation mechanism. Some applications also describe simple token-locking programs as staking. Not all such programs contribute to blockchain security. In decentralized finance, or DeFi, yield farming can encompass different activities. Users seek returns by providing liquidity or deploying assets across protocols.The source of rewards matters as much as the advertised yield. Revenue from user fees and newly distributed tokens have different economic effects. For example, your token balance could increase by 15% while the asset’s price falls. Holding more tokens would not necessarily mean your investment’s total value had increased. Blockchain incentive models can accelerate participation initially. However, it is also important to track whether users continue using the service as rewards decline.Token burning and net supply changesToken burning permanently removes assets from supply by making them unusable. Locking can be temporary, so the two mechanisms have different effects. A burn’s impact on circulating supply depends on where the tokens come from. Burning treasury tokens already outside circulation may not reduce the existing market supply by the same amount. If new issuance also occurs, examining only the amount burned gives an incomplete picture. The following formula helps clarify the relationship:Net change in total supply = Newly issued tokens − Burned tokensFor example, issuing 5 million tokens while burning 2 million produces a net supply increase. A burn does not necessarily make the model deflationary during that period. On Ethereum, the balance between new ETH issuance and burning also determines supply changes. The existence of a burn mechanism does not guarantee that supply decreases in every period.Market Capitalization and Different Tokenomics ModelsToken economics addresses different needs across the digital asset economy. Examining valuation metrics alongside the utility model makes projects easier to compare.The difference between market capitalization and FDVMarket capitalization equals the token price multiplied by circulating supply. Fully diluted valuation, or FDV, considers a broader supply base. Depending on the data provider, FDV may use total or maximum supply. Check which definition underlies the figure displayed. A hypothetical example using maximum supply could look like this:MetricValueToken price$2Circulating supply100 million tokensMaximum supply1 billion tokensMarket capitalization$200 millionFDV based on maximum supply$2 billionThis table shows why a low unit price does not necessarily mean a low valuation. Market capitalization also does not represent the total money invested in a project. FDV does not predict future prices either. It multiplies today’s price by a broader supply figure without guaranteeing that price remains unchanged as supply changes.GameFi and dual-token economiesSome GameFi projects separate in-game utility and governance into different tokens. One token may support rewards and in-game spending, while another enables participation in decision-making. For example, Axie Infinity’s AXS serves governance and staking functions, while SLP is used to breed new Axies. STEPN defines GST as its in-game utility token and GMT as its governance token.This separation can make it easier to manage different functions under distinct rules. However, a dual-token model is neither necessary nor successful for every game. The balance between reward issuance and spending demand matters in a game economy. Creating lasting demand can become difficult if users participate only to sell rewards.Having two tokens does not automatically resolve this problem. Players’ appreciation of the experience and their reasons for participating beyond rewards also deserve consideration.DePIN and conditional distributionsDePIN stands for decentralized physical infrastructure networks. Participants can earn token incentives by supplying resources such as connectivity, storage, or computing power. In these models, infrastructure deployment needs to develop alongside real customer demand. A rising device count does not mean service revenue is growing at the same rate.For example, Helium uses Data Credits to pay for network usage. Creating these credits involves burning HNT, linking service usage to the token economy. Some models may also tie ecosystem funding or vesting to performance conditions. Releasing funds as development milestones are completed can connect spending to specific goals. Helium's monthly data credit burn However, projects should explain who measures achievement and who can change the conditions. Vague performance criteria may concentrate decision-making authority within a small group and reduce transparency.How to Analyze TokenomicsTokenomics analysis goes beyond examining an allocation chart. It requires comparing the stated plan with on-chain implementation and actual usage.Documentation and on-chain dataStart with the white paper, official documentation, and current governance decisions. Older promotional materials may not reflect changes to distribution or issuance rules.The following checklist provides a starting point for investment analysis:Compare circulating, total, and maximum supply.Examine allocation groups and vesting schedules.Check permissions to issue new tokens and modify contracts.Research treasury wallets and spending records.Determine whether rewards come from revenue or new distributions.Evaluate the token’s connection to the service and user demand.Try to verify the identities behind large wallets.A large wallet may hold an exchange’s customer assets rather than one investor’s holdings. Conversely, multiple wallets may belong to the same person. Address distribution therefore does not always reveal economic ownership directly. Unlabeled data should not be treated as definitive ownership information.Sustainability and warning signsA sound economic model seeks to connect participants’ long-term interests with the service’s continued operation. The balance between users, developers, and capital providers matters. Unclear unlock schedules, undisclosed issuance permissions, and demand driven solely by high yields deserve scrutiny. An inability to track treasury spending also makes the model harder to evaluate.An inflationary model may use new supply to reward useful contributions. A deflationary model may face insufficient demand despite a declining supply. No single feature therefore establishes “good tokenomics.” Technology, security, liquidity, competition, and usage data should also inform the analysis.Frequently Asked Questions (FAQ)Below are answers to some frequently asked questions about token economics and tokenomics:How can we tell whether a project has good tokenomics?: Look for clear supply rules, traceable allocations, understandable incentives, and a connection to actual usage. These features do not guarantee success or price appreciation.Does token burning always increase the price?: No. The amount burned, new issuance, demand, and market conditions all affect the outcome. Burning tokens outside circulation can also have different effects.Can tokenomics replace investment advice?: No. It helps explain a project’s economic structure but does not independently account for security, liquidity, and market risks.Why does the token allocation plan matter?: It shows who controls tokens and when they become available. This helps assess potential selling pressure and governance power.Why do some GameFi projects use two tokens?: They may separate in-game utility and rewards from governance. However, not every GameFi project uses two tokens.What rights do governance tokens give holders?: Depending on the project, they may allow holders to submit proposals, vote, or delegate voting power. Company ownership or revenue-sharing rights do not arise automatically.Explore JrKripto’s staking and DeFi guides for a closer look at incentives within token economies.
Bitcoin mining relies on specialized hardware performing calculations to produce new blocks on the network. Miners help record transactions and support network security. In return, they can earn income from the block subsidy and transaction fees. However, purchasing a device alone does not ensure consistent earnings. Electricity costs, network competition, hardware efficiency, and the Bitcoin price all influence the outcome. This guide explores how mining works, equipment selection, rewards, and the requirements for a home setup.What Is Bitcoin Mining, and Why Is It Necessary?Bitcoin operates without a single institution managing its transaction records. Mining forms part of the mechanism that produces new blocks within this decentralized system.The network’s rules also explain how Bitcoin is created. Mining introduces new Bitcoin within the limits set by the protocol.Recording transactions, issuing new Bitcoin, and securing the networkMiners work on a candidate block containing transactions. A miner who finds a valid block can claim the reward permitted by the protocol.This reward comes from two sources: the block subsidy, which creates new Bitcoin, and transaction fees. Transaction fees transfer existing Bitcoin; they do not create new supply.While miners select transactions, full nodes independently enforce the network’s rules. A block containing invalid transactions or an excessive reward remains invalid, regardless of computing power.This distinction helps clarify mining’s role. Miners compete to produce blocks; full nodes check which blocks are valid.How Proof of Work and SHA-256 workProof of Work refers to a mechanism that demonstrates computational effort. In Bitcoin, it involves finding a hash that meets a specific target.A hash function produces a fixed-length output from its input data. Even a small change to the input substantially changes the result.Bitcoin mining applies the SHA-256 function twice to the block header. The miner attempts to produce a numerical result that does not exceed the network’s target.Because a valid result cannot be predicted, the hardware makes numerous attempts. Verifying the cryptographic proof supplied by a successful miner is comparatively straightforward. Source: Toby Chitty, “The Mathematics of Bitcoin — SHA-256,” Medium, May 25, 2020. Why blocks link together?Each block contains the previous block’s hash. This connection helps preserve the order of the transaction history.Changing an older block’s contents also changes its hash. Maintaining the links to subsequent blocks therefore requires repeating the computational work. Among valid chains, the network follows the one with the most accumulated work. As new blocks arrive, rewriting the history requires more computation.This explains why transaction confirmations matter. As additional blocks build on the block containing a transaction, the risk of reversal generally decreases.How Does Bitcoin Mining Work?Sending a Bitcoin transfer does not immediately place the transaction on the blockchain. It first spreads across the network and may then enter a block produced by a miner.From the mempool to a candidate blockNodes keep accepted transactions that have not yet entered a block in an area called the mempool. Each node’s mempool does not have to contain exactly the same transactions.A miner or pool selects transactions to prepare a candidate block. Since block capacity is limited, transaction fees play an important role in this selection. The total fee alone does not determine priority. The fee rate relative to the space a transaction occupies also matters.For example, a large transaction may pay a higher total fee. A smaller transaction, however, may offer more fees per unit of space.The block header and the search for a nonceDuring mining calculations, hardware works on the block header rather than the entire candidate block. The header contains these main fields:FieldPurposeVersionSpecifies the block’s versionPrevious block hashLinks the new block to the previous blockMerkle rootRepresents a cryptographic summary of the block’s transactionsTimestampProvides time information within the limits allowed by the rulesTarget informationEncodes the target a valid hash must meetNonceHolds a value that can change for new hashing attemptsThe hardware repeatedly calculates hashes while changing the nonce. However, its attempts are not limited to this field.Mining software can modify other data, such as the coinbase transaction, to create new search possibilities. Here, coinbase means the special transaction containing the mining reward; it does not refer to the exchange.What happens when a miner finds a valid block?The miner that finds a result meeting the target broadcasts the block. Nodes check its Proof of Work, transactions, and other validity requirements.Sometimes, two miners find different valid blocks at nearly the same time. The network may briefly work on different chain tips.Subsequent blocks determine which branch accumulates more work. The expected reward for a block on the other branch may never become lasting earnings.Finding a block and securing its reward therefore should not be treated as the same moment. Mining software and pools track these situations in their records.Equipment Required for Bitcoin MiningIn Bitcoin’s early years, people could mine using personal computers. As competition and total computing power increased, hardware requirements changed.Today, economically competitive Bitcoin mining largely relies on ASIC devices designed for SHA-256. Ordinary computers cannot match their efficiency.Differences between ASICs, GPUs, and CPUsAn ASIC is an integrated circuit designed for a specific task. Bitcoin ASIC devices aim for high performance and energy efficiency in mining calculations.A GPU is a graphics processing unit, while a CPU is a computer’s central processing unit. These components can perform more general-purpose tasks.HardwareRole in Bitcoin miningMain limitationCPUUsed during Bitcoin’s earliest yearsNo longer provides competitive computing powerGPUBecame prominent before the ASIC eraInefficient compared with ASICs for Bitcoin miningASICThe main hardware used in Bitcoin mining todayTied to a specific algorithm, with limited alternative usesGPU systems can mine on other suitable cryptocurrency networks. This flexibility does not make them economical for Bitcoin mining.Some services may also pay BTC for other computing activities. Receiving payment in Bitcoin does not mean the device is directly attempting to produce Bitcoin blocks.Energy efficiency matters alongside hash rateHash rate measures the number of calculations a device performs per second. Bitcoin ASIC specifications commonly use the unit TH/s.However, a higher TH/s figure alone does not mean greater profit. You also need to examine the electricity required to achieve that performance.J/TH measures the energy needed per terahash. Under the same conditions, a lower value indicates better energy efficiency.When comparing mining equipment, evaluate the following together:Hash rate and power consumption at the wall.Energy efficiency in J/TH.Electrical connection and power supply requirements.Cooling method and noise level.Warranty, servicing, and access to replacement parts.Purchase, shipping, and installation costs.The cheapest device may not offer the lowest costs over its operating life. An inefficient model can consume its upfront savings through higher electricity bills.Software selection and setup basicsCGMiner and BFGMiner are prominent open-source projects in mining software’s history. Their appearance in an older guide does not mean they support every current ASIC.Check BFGMiner’s documentation to confirm which devices it supports. Modern ASIC setups may use manufacturer-provided software or compatible alternative firmware.For example, Braiins OS provides alternative firmware for supported devices. Available features and compatibility can vary by device model and control board.The general setup process includes these steps:Check the device’s electrical and cooling requirements.Prepare connections according to the manufacturer’s instructions.Connect the device to a trusted local network.Change the management interface’s default login credentials.Enter the pool address and worker details.Configure the payout address according to the pool’s instructions.Monitor hash rate, temperatures, and error rates.A worker name identifies your device within the pool. Assigning separate names to multiple devices makes performance issues easier to locate.Mining Pools, Difficulty, and Block RewardsMining income depends on network conditions as well as device performance. The pool model, difficulty adjustment, and Bitcoin halving are central to this relationship.How a mining pool worksA mining pool brings participants’ computing power together under a shared operation. Participants demonstrate their work by submitting “shares” that meet the pool’s requirements.Not every share represents a valid block on the Bitcoin network. The pool uses these records to measure miners’ contributions.Pools may use different payout methods:Payout modelBasic approachPPSPays for accepted shares according to a defined calculationFPPSIncludes transaction fees alongside the block subsidy in its calculationPPLNSDistributes earnings from blocks found by the pool according to a defined window of shares Pools using the same model name may differ in their implementation. Review fees, transaction fee distribution, and payment conditions separately.Using a pool can reduce income variability compared with solo mining. However, it does not guarantee fixed earnings or profitability.When choosing a pool, compare fees, payout thresholds, connection stability, and support quality. Concentration in a few large pools can also create centralization risks in block production coordination.Why mining difficulty changesBitcoin targets an average block interval of approximately 10 minutes. Individual blocks do not need to arrive exactly 10 minutes apart.On the mainnet, difficulty adjusts every 2,016 blocks. The system calculates the new target using the previous period’s block production time.If blocks arrive faster than intended, mining generally becomes more difficult. If they arrive more slowly, difficulty may fall, helping the network adapt to changing computing power.The protocol does not directly measure total hash rate by counting every device. We estimate the network’s computing power from block production.When competing miners add more powerful devices, your device’s share of the network may shrink. Your expected BTC income can decline even if your performance remains unchanged.The block subsidy and Bitcoin halvingBitcoin’s block subsidy halves every 210,000 blocks. This approximately four-year cycle is known as the Bitcoin halving.PeriodBlock subsidyAt launch in 200950 BTCAfter the 2012 halving25 BTCAfter the 2016 halving12.5 BTCAfter the 2020 halving6.25 BTCAfter the 2024 halving3.125 BTCAfter the next halving, expected around 20281.5625 BTCAs of October 2026, the block subsidy stands at 3.125 BTC. Adding transaction fees gives the miner’s total block revenue.The next halving will occur at block 1,050,000. Its exact calendar date depends on how quickly blocks arrive.Halving does not remove existing Bitcoin; it slows the rate of new supply. Bitcoin’s limited supply contributes to its “digital gold” description, but it does not guarantee price increases.Is Bitcoin Mining Profitable?When evaluating mining income, distinguish the amount of BTC earned from net profit. Even if Bitcoin’s price rises, electricity and other expenses can consume the earnings.Calculating electricity costsConsider a hypothetical ASIC drawing an average of 3,000 watts from the wall. Running 24 hours a day, it consumes 72 kWh daily.For this example, assume a total electricity price of 4 Turkish lira per kWh:CalculationResultDaily consumption: 3 kW × 24 hours72 kWhDaily electricity cost: 72 × 4 lira288 liraConsumption over 30 days2,160 kWhElectricity cost over 30 days8,640 liraThis calculation does not represent a current electricity tariff or a particular device. External cooling, downtime, and variations in power consumption affect the actual result.Also account for tiered pricing or additional charges on your bill. Other household electricity use can influence your total bill.Expenses that affect net earningsA simplified operating calculation starts by subtracting electricity and other operating expenses from mining revenue. Track the upfront cost separately to determine whether you have recovered your hardware investment.Include the following items:Pool fees and any firmware fees.Cooling, maintenance, and replacement parts.Shipping, installation, and any import costs.Operating time lost to device failures.Financing costs and tax obligations associated with the activity.Hardware depreciation over time.Profitability calculators produce estimates based on the assumptions you enter. Comparing different scenarios is more useful than treating their results as a definite income forecast.For example, separately test scenarios involving a falling Bitcoin price, rising difficulty, and higher electricity costs. This helps avoid relying on an investment calculation that works only under favorable conditions.Energy Consumption and Home MiningCryptocurrency mining requires physical infrastructure. Electricity sources, ambient temperature, and hardware service life affect both costs and environmental impact.How much energy does Bitcoin mining consume?Cambridge’s April 2025 report estimated Bitcoin mining’s annual electricity consumption at approximately 138 TWh. The research drew on data representing roughly 48% of global mining activity.The report estimated annual network-wide greenhouse gas emissions at 39.8 million tonnes of CO₂ equivalent.Electricity consumption and carbon emissions are distinct measures. Two facilities consuming the same amount of electricity can produce different emissions because of their energy sources.Energy sources and hardware wasteIn the Cambridge study, renewables accounted for 42.6% of participants’ electricity mix. Including nuclear energy’s 9.8% share, sources classified as sustainable reached 52.4%.However, renewable energy use does not eliminate the impacts of hardware production and electronic waste. Maintenance, repairs, and device lifespan also matter.More efficient ASIC models can reduce the energy required for the same computational work. Yet total network consumption may still rise if the number of devices increases.A cold climate may reduce cooling requirements at appropriately designed facilities. Waste heat recovery is also possible; its benefits depend on local heating demand and installation costs.Is Bitcoin mining at home possible?With suitable hardware and infrastructure, mining Bitcoin at home is technically possible. However, powerful ASIC devices can generate considerable heat and noise in a residential setting.Answer the following questions before installation:Can the electrical circuit handle the device’s continuous load?Can hot air exit the space safely?Will the noise affect household members or neighbors?Is the internet connection stable?Is the device’s management interface protected against external access?Does the activity comply with local rules and applicable agreements?Have a qualified electrician assess the electrical infrastructure. Unsuitable cables and connections can create risks under a continuous high load.Small-scale devices may appeal to people who want to learn and gain experience. However, the probability of finding a block through solo mining with limited computing power can remain extremely low.A home setup lets you observe the system directly and develop technical experience. The financial outcome still depends on electricity tariffs, device efficiency, and network conditions.Frequently Asked Questions (FAQ)Below are answers to some frequently asked questions about Bitcoin mining:What is Bitcoin mining, and how do you do it?: Bitcoin mining is the process of producing new blocks through Proof of Work calculations. It requires compatible ASIC hardware, electrical infrastructure, an internet connection, and suitable software. Miners can operate solo or join a pool.What equipment do you need for Bitcoin mining?: The basic requirements include a SHA-256 ASIC, a suitable power supply, network connectivity, and cooling infrastructure. You also need a Bitcoin wallet to receive payouts.How much can I earn from mining?: There is no fixed amount. Your device’s hash rate, network difficulty, Bitcoin’s price, transaction fees, and operating expenses affect the outcome. Gross revenue does not equal net profit.What should I consider when choosing a mining pool?: Compare the payout model, fees, minimum payout amount, and connection stability. Also review account security and protections against unauthorized payout address changes.Does Bitcoin mining harm the environment?: Electricity generation, hardware manufacturing, and electronic waste can create environmental impacts. Their scale depends on the energy source, device efficiency, and equipment lifespan.What are the advantages of mining Bitcoin at home?: You can learn to manage hardware, understand the network, and monitor performance. There is also potential to earn income, although electricity, noise, and cooling requirements constrain the outcome.Explore JrKripto’s mining rig guide for a closer look at Bitcoin mining hardware. Our Proof of Work and Bitcoin halving guides also explain network security and the reward mechanism.
Aviva Investors, the investment arm of British insurer Aviva, has expanded its tokenization partnership with Ripple. The company launched a new share class of its sterling liquidity fund on the XRP Ledger. Aviva invested £50 million in the new tokenized share class.The companies announced the details on Monday, October 26. The Sterling Liquidity Fund, with approximately £22 billion in assets, is Aviva Investors’ largest fund. The new share class allows investors to access the fund through tokens.The launch marks Aviva Investors’ second tokenized fund share class on the XRP Ledger. The company introduced a similar offering for its dollar-denominated liquidity fund in July. Total investment across the two tokenized share classes now exceeds £86 million.New Shares of the £22 Billion Fund Move OnchainThe £22 billion figure in the announcement represents the Sterling Liquidity Fund’s total assets. The initial investment in the new tokenized share class amounts to £50 million. The announcement therefore does not mean that the fund’s entire portfolio has moved onto a blockchain.Aviva launched the fund in 2002 to invest in high-quality, short-term debt instruments. The sterling-denominated portfolio targets low-risk returns and daily liquidity. The Ireland-domiciled product operates as a UCITS money market fund.The new offering represents investors’ fund holdings on a blockchain. Investors can therefore participate in the existing investment strategy through digital shares. The underlying portfolio continues to operate within its conventional structure.The company describes this approach as a “digital twin” model. It adds a digital access layer to the existing fund structure. This allows Aviva to represent investors’ holdings onchain while preserving the portfolio’s operations.Custody and Investment Terms Follow the Existing FrameworkEligible investors with digital wallets can access the new share class. The Bank of New York Mellon holds the fund’s assets. Institutional digital asset custodian Komainu and infrastructure platform Licuido also supported the launch.According to Aviva, the tokenized shares retain the conventional fund’s investment objective and risk profile. Liquidity characteristics and regulatory protections also follow the existing framework. Tokenization therefore brings share ownership into a digital format without changing the fund’s investment strategy.The structure also highlights the distinction between using the XRP Ledger and investing in XRP. Aviva’s announced £50 million investment concerns the new fund share class. The company did not announce an equivalent purchase of XRP.The institutional adoption in this announcement involves using blockchain infrastructure to issue and manage fund shares. Interpreting it as a direct XRP purchase would therefore misrepresent the development.Aviva Plans to Expand Its Tokenized OfferingsAviva Investors CEO Mark Versey views the new product as a continuation of the company’s tokenization ambitions. Versey believes tokenized funds could improve efficiency and deliver better outcomes for clients. The company also plans to explore further tokenization opportunities with Ripple.Speaking to Financial News, senior investment director Alastair Sewell highlighted growing interest from institutional investors. Sewell said incoming enquiries encouraged the company to move from monitoring tokenization to developing products. Aviva Investors also wants to explore tokenized fund opportunities across other asset classes.However, the company will continue to prioritize money market funds in the initial phase. New distribution channels could help it reach investors familiar with the digital asset ecosystem. The sterling fund offering represents the latest step in that strategy.
Cryptocurrency mining requires hardware to use its computing power according to a network’s rules. Systems known as mining rigs handle this work; however, choosing a device also requires evaluating electricity consumption, cooling, and operating costs alongside performance.What Is a Mining Rig, and What Does It Do?A mining rig is a hardware system configured for cryptocurrency mining. Although the term commonly refers to setups containing multiple graphics cards, its broader use covers different mining systems.These devices participate in block production on networks that use the Proof of Work consensus mechanism. In doing so, they help extend the transaction record and contribute to network security.The role of hardware in miningIn Bitcoin mining, software sends data related to a candidate block to the hardware. The hardware repeatedly performs calculations to find a hash that meets the network’s target.People often describe this process as “solving complex mathematical problems.” A more accurate description is performing numerous cryptographic attempts with different inputs.The miner that finds a valid result broadcasts the block to the network. Network nodes independently verify its transactions and compliance with the rules.Does every cryptocurrency require a mining rig?Not every blockchain network uses mining. On Proof of Stake networks, block production depends on staked assets and the protocol’s validator rules.Ethereum switched to Proof of Stake in 2022. As a result, mining ETH with graphics cards on the Ethereum mainnet is no longer possible.Before buying hardware, check the target network’s current algorithm. A device’s previous use for a particular asset does not mean it remains suitable today.GPU and ASIC Mining SystemsThe main distinction when choosing mining hardware involves flexibility and performance on a specific algorithm. GPU-based systems and ASIC devices serve different needs.How is a GPU mining rig built?GPU mining uses the processing power of graphics cards to perform calculations. Running several cards within the same system requires compatible components.ComponentRole in the systemGraphics cardPerforms mining calculationsMotherboard and processorManage the system and communication between componentsRAMProvides working memory for the operating system and softwareStorage deviceHolds the operating system and mining softwarePower supplySupplies sufficient electrical power suitable for the componentsRiser connectionsHelp connect graphics cards in compatible setupsFrame and fansSupport the components and promote airflowGPU systems may allow switching between different supported algorithms. However, graphics card memory, software support, and network competition limit this flexibility. An example of a GPU mining rig consisting of five graphics cards. In such systems, the graphics cards perform the mining calculations, while the power supply and cooling components support the operation of the hardware. Photo: Jasper Reichardt / Wikimedia Commons - CC BY-SA 4.0. What is an ASIC miner used for?ASIC stands for application-specific integrated circuit, a chip designed for a particular task. An ASIC miner operates on the mining algorithm it supports.For example, Bitcoin mining uses ASIC devices designed for SHA-256. You cannot redirect such a device to an arbitrary cryptocurrency that uses a different algorithm.ASIC systems generally include hash boards, a controller, and cooling hardware. Whether the package includes a power supply, along with its electrical requirements, varies by model.FeatureGPU-based rigASIC minerFlexibilityCan switch between supported algorithmsLimited to a specific algorithmSetupMay require assembling individual componentsUsually an integrated devicePerformanceDepends on the algorithm and graphics cardSpecialized for its designated algorithmAlternative usesGraphics cards can serve other purposesLimited alternative usesCostDepends on the number of cards and componentsDepends on the model, efficiency, and market conditionsASIC devices are not always more expensive, and GPU systems are not always more economical. Compare them based on the total setup cost and target algorithm. The Antminer S9 is an example of an ASIC device designed for a specific mining algorithm. Unlike GPU rigs, its computing components are integrated into a compact, purpose-built device. Photo: Steve Rainwater / Wikimedia Commons, via Flickr - CC BY-SA 2.0. How Does a Mining Rig Work?A working mining setup requires hardware, software, and network connectivity to operate together. Buying high-performance equipment alone does not ensure a steady income.Software, mining pools, and rewardsMining software determines which work the device performs and where it sends the results. When using a pool, you configure the connection address, device identifier, and payment settings.Mining pools combine participants’ computing power in a shared effort. Each pool evaluates contributions and distributes earnings according to its payment model.With solo mining, the intervals between finding blocks can be extremely long. Using a pool can reduce payment variability, but it also introduces fees, payout thresholds, and service provider risk.Hash rate and energy efficiencyHash rate measures the number of hash calculations hardware performs per second. Common units include MH/s, GH/s, and TH/s.However, you cannot directly compare hash rates across different algorithms. A higher figure on one algorithm does not prove that a device operates more efficiently than hardware running another.When evaluating performance on the same algorithm, also consider energy consumption. One common metric for Bitcoin ASIC devices is J/TH, which measures the energy consumed per terahash.A lower value means less energy is required for the same amount of computational work. Still, actual power consumption can vary with temperature and operating settings.How Is Mining Profitability Calculated?Mining profitability requires a broader calculation than the value of the cryptocurrency earned. Electricity expenses, maintenance, pool fees, and hardware depreciation all affect the outcome.An example of calculating electricity costsConsider a system drawing an average of 1,000 watts from the wall. Running for 24 hours a day, it consumes 24 kWh of electricity daily.For this hypothetical example, assume a total electricity cost of 4 Turkish lira per kWh:CalculationResultDaily consumption: 1 kW × 24 hours24 kWhDaily electricity cost: 24 × 4 lira96 liraConsumption over 30 days720 kWhElectricity cost over 30 days2,880 liraThis example does not represent a current electricity tariff. Add the consumption of external cooling systems and other equipment separately.Factors that change earningsThe same device’s earnings can change over time. Consider the following variables together when calculating profitability:The price of the asset being mined.Network difficulty and competing miners’ computing power.The block subsidy and transaction fees.Pool fees and payment methods.Device downtime.Electricity, maintenance, and cooling expenses.Bitcoin halving cuts the block subsidy in half. Calculating a fixed payback period using today’s daily revenue can therefore be misleading.Dividing the hardware cost by daily net earnings provides only an initial estimate. Calculate adverse scenarios separately, including falling prices and rising electricity costs.Setup, Maintenance, and Home UseWhen choosing mining equipment, plan the environment in which it will operate. A sustained load directly affects electrical infrastructure and room temperature.A checklist before installationComplete the following steps before starting the installation:Verify the target network’s algorithm and hardware compatibility.Determine the total power demand and connection requirements.Have a qualified electrician check whether the electrical circuit can handle a continuous load.Prepare an area where hot air can escape.Obtain software and device updates from official sources.Carefully configure the pool address and payout wallet.Monitor temperatures, power consumption, and error rates during initial operation.Disconnect power before making hardware connections, and follow the manufacturer’s cabling instructions. Unsuitable power strips or connections can create an overheating risk.Heat, noise, and hardware lifespanMost of the electricity the device consumes eventually becomes heat. Fans help remove this heat, but they can generate substantial noise, particularly in powerful systems.Dust buildup and insufficient airflow make cooling more difficult. During maintenance, check fans, connections, and operating temperatures according to the manufacturer’s instructions.Physical lifespan and economic lifespan can also differ. An older device may continue functioning while becoming uneconomical if its earnings no longer cover electricity costs.Frequently Asked Questions (FAQ)Below are answers to some frequently asked questions about mining rigs:Which cryptocurrencies can you mine with a mining rig?: The algorithm supported by the hardware determines the options. Bitcoin mining uses SHA-256 ASIC devices; check the relevant network’s current documentation for GPU mining options.Does setting up a mining rig at home make sense?: Electricity tariffs, ventilation, noise, and upfront costs determine the outcome. Evaluate these conditions together before purchasing a device.How much energy do mining rigs consume?: Consumption depends on the model and operating settings. Base your actual cost calculations on the power the entire system draws from the wall.What is the main difference between an ASIC miner and a GPU-based mining rig?: An ASIC specializes in a specific algorithm. GPU systems may offer greater flexibility across the algorithms they support.How long do mining rigs last?: There is no fixed lifespan. Temperature, maintenance, component quality, and operating conditions affect physical lifespan; revenue and costs determine economic lifespan.Is cryptocurrency mining legal?: Rules vary by country and the scope of the activity. Before setting up a rig, check local regulations, tax obligations, and electricity usage conditions.Explore JrKripto’s Bitcoin mining guide to learn more about hardware’s role in the network. You can also discover how block production and rewards work through our Proof of Work and Bitcoin halving guides.
Price movements in the crypto market can quickly change investors’ expectations and decisions. The fear and greed index tracks these shifts through a numerical indicator; this guide explores its calculation, sentiment levels, and role in crypto analysis.What Does the Fear and Greed Index Tell You?The fear and greed index evaluates market sentiment using selected data. It summarizes factors such as price behavior, trading activity, and investor interest on a shared scale. Market sentiment refers to investors’ general expectations and willingness to take risks. Growing optimism can strengthen buying interest, while increasing uncertainty may encourage investors to reduce their exposure.However, the index does not function as a comprehensive survey that directly measures everyone’s emotions. It assesses the market’s psychological state using data selected by its provider.What Does a Score Between 0 and 100 Mean?Low index values indicate fear, while high values indicate greed. Zero represents extreme fear, and 100 represents extreme greed. You should not interpret the score as a probability or a percentage of investors. For example, a score of 80 does not mean that 80% of investors are buying. Similarly, a score of 20 does not indicate that prices will fall by 20%. The scale makes it easier to compare sentiment across different periods.How Do FOMO and FUD Affect Investor Behavior?FOMO stands for fear of missing out. During rapid price increases, investors may feel pressure to buy before completing their research. Social media posts showing investment gains can intensify this pressure. Following other people’s trades may cause investors to overlook their own investment horizon and loss tolerance. FUD stands for fear, uncertainty, and doubt. In crypto markets, the term often describes news or narratives that cause concern.However, assuming that every negative report is unfounded would be a mistake. Security vulnerabilities, payment problems, and operating restrictions can create real risks. When conducting sentiment analysis, you should examine the source and accuracy of the news separately. The index does not verify whether a particular claim is true.How Is the Index Calculated, and What Data Does It Use?There is no single universal crypto fear and greed index. Different providers use different datasets and calculation methods. For this reason, check the source before interpreting a score. Seeing different readings on two platforms on the same day does not necessarily indicate a data error.Components of the Alternative.me IndexAlternative.me’s published methodology focuses on Bitcoin. Its page lists the following components and weights:ComponentPublished weightData examinedVolatility25%Bitcoin volatility and drawdowns from peak prices, compared with 30-day and 90-day averagesMarket momentum and volume25%Momentum and trading volume relative to 30-day and 90-day averagesSocial media15%Posts involving Bitcoin-related hashtags and the speed of engagementSurveys15%Investor opinions; the provider has paused this componentBitcoin dominance10%Bitcoin’s share of the total cryptocurrency market capitalizationGoogle Trends10%Bitcoin-related searches and changes in search interestBecause surveys are paused, you should not read this table as a current formula with all six components active. The provider does not explicitly explain on the page how it redistributes the unused weight. We therefore cannot recalculate the remaining percentages and present them as definitive current weights. Alternative.me updates its index daily; its Bitcoin-focused methodology does not measure each altcoin’s conditions separately. What Distinctions Matter When Reading These Components?Volatility describes the magnitude of price movements. When a volatility indicator rises, you still need to examine the direction and cause of those movements. Trading volume alone does not explain buying interest either. Volume can increase during heavy selling, so price direction and execution conditions matter.Bitcoin dominance shows the relationship between market capitalizations. An increase does not always mean investors are selling altcoins to buy Bitcoin. For example, Bitcoin and altcoins can decline simultaneously. If altcoins’ combined value falls faster, Bitcoin’s market share can still rise. Social media activity and search interest also need context. News of a hack can increase searches for a project; greater attention does not always indicate optimism.Why Do Different Providers Produce Different Results?CoinMarketCap’s index uses a different combination of data from Alternative.me. Its methodology includes price momentum among major crypto assets, expected Bitcoin and Ethereum volatility, options data, market composition, and the platform’s own interest metrics. Combining two providers’ scores as though they belonged to the same continuous series would therefore be misleading. Using the same source for historical comparisons supports a more consistent assessment.Algorithmic calculation alone does not guarantee neutrality or accuracy. Data selection and weighting directly affect the result.From Fear to Greed: How to Interpret the IndexLooking only at today’s score can cause you to miss the direction of change. The same reading can carry a different meaning depending on previous days. For example, an increase from 15 to 35 may suggest that fear is easing. A decline from 60 to 35 may indicate deteriorating sentiment.The Five Main Sentiment LevelsCategory thresholds can differ between providers, so check the classification displayed alongside the score. You can interpret the main categories as follows:LevelGeneral interpretationWhat it does not establish on its ownExtreme fearConcern and risk aversion are pronouncedThat prices have bottomedFearCautious expectations are becoming more prominentThat the decline will definitely continueNeutralNeither fear nor greed clearly dominatesThat the market is risk-freeGreedOptimism and willingness to take risks are strengtheningThat further gains are guaranteedExtreme greedIntense optimism and pressure to avoid missing out may emergeThat prices will fall immediatelyThese categories do not produce price targets. They also do not directly establish an asset’s economic value or a project’s quality.Does Extreme Fear Mean a Buying Opportunity?Some investors use widespread fear as a starting point for researching potential opportunities. This approach rests on the idea that the crowd’s expectations can become excessive. However, trading without understanding the cause of fear carries risks. Temporary panic and a serious fundamental problem can both coincide with similarly low readings.For example, broad market selling and a security vulnerability in a specific project are different situations. In the latter case, a low price does not provide evidence that the project will recover. When you see a low score, examine prices, news, and liquidity together. Do not conclude that prices “cannot fall any further” based solely on the index.Does Extreme Greed Indicate When to Sell?High scores can accompany periods when investors start underestimating risks. Borrowing and leverage can magnify the effects of price fluctuations, particularly during rapid rallies. Nevertheless, elevated sentiment can persist throughout a strong trend. The first extreme greed reading does not necessarily mark the market’s peak.You can use the index as a prompt to reassess your existing exposure. Checking whether position sizes and potential losses fit your plan offers a more practical approach than predicting direction from a single score.How Can You Include the Index in Crypto Analysis?The fear and greed index is one of several market indicators that add context to research. Its usefulness does not require it to replace other information. When you encounter a cryptocurrency index, identify what it measures. A sentiment index and an index tracking the price performance of selected assets answer different questions.Read It Alongside Prices, Volume, and FundamentalsYou can compare the index score with the following information:Price trend: Whether the market is forming higher or lower lows.Trading volume: How much trading activity accompanies the price movement.Liquidity: The potential impact of large orders on prices.Technical analysis tools: Moving averages, RSI, and support and resistance areas.Fundamental developments: Network usage, security issues, and token unlocks.Macroeconomic conditions: Interest rate expectations and broader risk appetite.However, seeing the same data reflected in different indicators does not count as independent confirmation. Price and momentum data may already form part of the index. For example, rising prices, stronger momentum, and a higher sentiment score may reflect the same movement. Treating them as three separate pieces of evidence can create excessive confidence.Working Through a Hypothetical ExampleSuppose a sentiment index falls from 70 to 22 within a week. During the same period, Bitcoin’s price declines and trading volume rises. This suggests that the market has become more cautious in a short time. It does not establish that selling has ended or that a rally will begin the following day.To develop the analysis, consider these questions:Is there a verified development behind the selling?Is the movement limited to Bitcoin or visible across the wider market?Could reduced liquidity have amplified the price movement?Is the high volume concentrated on a few platforms?If you trade, what conditions would cause you to revise your assessment?The purpose of this example is to investigate the reasons behind the change in market sentiment. A score of 22 should not automatically become a buy signal.For example, Alternative.me’s reading dated October 25, 2026, places the index in “neutral” territory at 54, compared with 51 the previous day, 53 a week earlier, and 71 a month earlier. The daily and weekly comparisons suggest limited change, while the shift from last month’s “greed” reading to neutral indicates weaker optimism; however, this alone does not establish whether prices will rise or fall. Track Market Cycles and Your Own DecisionsCrypto market dynamics include changes in optimism and concern over time. The index’s history can help you examine how these shifts align with price movements. Still, cycles do not repeat in the same sequence or over identical periods. A score that coincided with a recovery in the past may not produce the same outcome later.Recording your own decisions can also help. Note the score on the day of a trade, your reasoning, and the conditions you expected, then compare them later. This record can reveal how investor psychology affects your decisions. You can examine whether you rush into rising markets or abandon your plan during declines.The Index’s Limitations and Common MistakesThe index is limited by the scope of its underlying data. You should not expect it to represent every investor, platform, or token. Social media data, in particular, can reflect the characteristics of its user base and the quality of its content. The SEC and FINRA highlight risks such as misleading information and missing context in social sentiment tools.Common interpretation mistakes include:Automatically treating a low score as “cheap” and a high score as “expensive.”Applying a Bitcoin-focused reading to every altcoin.Assuming different providers calculate their scores using the same methodology.Using daily data as a real-time trading signal.Assuming an approach that worked in the past will work again.Relying on the index while overlooking position size or leverage risk.Market prices can change throughout the day while the displayed index score remains unchanged. Check the data’s date and update frequency. Likewise, the difference between a score of 24 and 25 does not, by itself, indicate a fundamental shift. Context and the direction over a broader period matter more than small daily movements.Frequently Asked QuestionsBelow are some frequently asked questions and answers about the fear and greed index:How often is the fear and greed index updated?: Update frequency depends on the provider. Alternative.me publishes daily data; check the timestamp on the platform you use.Does the crypto fear and greed index apply only to Bitcoin?: The scope differs between indices. Alternative.me’s methodology focuses on Bitcoin, while CoinMarketCap uses a broader combination of data.Why does the index use a scale from 0 to 100?: A shared scale makes sentiment easier to compare across periods. The score does not represent a percentage of investors or the probability of a price movement.What should I do during extreme fear?: First, assess the developments causing fear and your existing exposure. A low score does not mean you need to trade or that prices have bottomed.Does the index always provide accurate signals?: No; the index does not identify exact buying or selling times. Prices can continue moving in the same direction while fear or greed persists.How does the index relate to market cycles?: The index can help track changes in risk appetite across periods. However, it cannot independently determine when a cycle begins, how long it lasts, or when it ends.Explore JrKripto’s candlestick chart guide to assess market sentiment alongside price movements. Discover how supply dynamics fit into your analysis with the Bitcoin halving and tokenomics guides.
When you first enter the cryptocurrency world, you encounter terms such as Bitcoin, blockchain, wallets, and mining. This guide explains essential cryptocurrency terminology, how trading works, storage options, and the risks to consider before making a transaction.Introduction to CryptocurrencyWhat Is Cryptocurrency?Cryptocurrency is a type of digital asset that uses cryptographic methods to verify transactions. On networks such as Bitcoin, participants can maintain shared transaction records without a central institution managing them.You do not carry these assets as physical banknotes or coins. Your balance and transfers appear in the relevant network’s records.The purpose of a crypto asset varies by project. Some focus on transferring value, while others provide access to applications, pay network fees, or enable participation in governance.The degree of decentralization also differs between projects. You should assess the network’s technical structure, the asset’s issuer, and the platform you use separately.What Is Cryptology?Cryptology is the study of methods for protecting information and analyzing those methods. Within this field, cryptography focuses on areas such as encryption, digital signatures, and data integrity.Cryptocurrency networks use digital signatures to authorize transactions. Users create signatures with their private keys; the network can verify those signatures without learning the private keys.Hash functions produce a fixed-length digest from data. Even a small change in the data can produce a different digest.However, hashing and encryption are different processes. Using cryptographic proof also does not mean every transaction remains private; anyone can inspect transfer histories on many public networks.A Brief History of CryptocurrenciesSatoshi Nakamoto published Bitcoin’s white paper in 2008. The Bitcoin network launched in January 2009, putting digital value transfers without a central operator into practice.One well-known event in cryptocurrency history is the pizza purchase on May 22, 2010. Laszlo Hanyecz paid 10,000 BTC for two pizzas, an event now commemorated as Bitcoin Pizza Day.The purchase became an early example of using Bitcoin in exchange for goods and services. The first transfer on the Bitcoin network took place before the pizza purchase.Blockchain Technology and Crypto AssetsWhat Is Blockchain?Blockchain is a data structure that stores records in interconnected blocks. As a form of distributed ledger technology, it allows different participants to hold copies of the same records.A block contains a cryptographic reference to the previous block. An attempt to alter past records also affects subsequent links and the network’s validation checks. This structure makes transaction history difficult to modify. The level of security still depends on the network’s size, consensus mechanism, and distribution of participants.Decentralization aims to reduce the concentration of decision-making and validation authority in a single place. However, blockchain networks do not all use the same participation and governance models.What Are Coins, Tokens, and Altcoins?In common usage, a coin refers to the native asset of its own blockchain network. BTC on Bitcoin and ETH on Ethereum are examples of this distinction.A token is an asset created using an existing network’s infrastructure. Tokens can serve purposes such as use within an application, participation in governance, or representation of specific rights.FeatureCoinTokenInfrastructureThe native asset of its own networkOperates on an existing networkUsesNetwork fees, transfers, network securityApplication functions, governance, asset representationExamplesBTC, ETH, SOL, AVAXUNI, USDT, SANDCreation processMay require developing and operating a networkCan use existing infrastructure and standardsThe technical cost of creating a token can be relatively low. However, building a secure, sustainable project that attracts users requires additional work.Altcoin generally refers to crypto assets other than Bitcoin. An asset described as an altcoin can therefore technically be either a coin or a token.Bitcoin, Ethereum, and Other Essential ConceptsBitcoin is known for transferring value without intermediaries and for its limited supply model. Its protocol rules cap total issuance at approximately 21 million BTC.Ethereum is a blockchain network where developers can build smart contracts and applications. Its native asset, ETH, pays transaction fees and allows users to contribute to network security through staking.Other concepts you will encounter in the digital asset ecosystem include:Stablecoin: A crypto asset that aims to keep its value close to a reference asset, such as the US dollar.DeFi: Applications that use smart contracts to provide financial services such as swaps, borrowing, and liquidity provision.NFT: A type of individually distinguishable token that can serve purposes such as digital collectibles and memberships.Governance token: An asset that may provide voting or proposal rights over certain project decisions.Fan token: A token that may offer engagement opportunities and usage rights defined by clubs or communities.ERC-20: A widely used technical standard for fungible tokens on Ethereum.A stablecoin’s price can deviate from its target. Its reserve structure, issuer, collateral, and underlying mechanism influence its risks.Owning an NFT also does not automatically grant copyright over the associated work. You need to check usage rights separately in the project’s terms.The Difference Between Digital Money and CryptocurrencyDigital money is a broad term covering monetary value held electronically. Bank account balances and electronic money do not have the same technical or legal structure as crypto assets.TopicBank account or electronic moneyCrypto assetsRecord managementThe institution’s systemsVaries by network and asset designTransaction controlInstitutional rules and regulationsProtocol rules, user authorization, and the service usedIdentity verificationGenerally requiredDepends on the service and applicable regulationsIncorrect transactionsDispute or review procedures may be availableReversing an on-chain transfer is generally not possibleCustodyAn account with an institutionAn institutional account or a user-controlled walletCreating your own wallet and opening an account on a centralized platform involve different processes. Platforms may request identity and transaction information to comply with regulations.The Cryptocurrency Market and Its DynamicsWhat Are Trading Volume and Liquidity?Trading volume shows the total amount traded over a given period. Data providers may express it in token units or a currency such as US dollars.Liquidity describes how easily you can buy or sell an asset without significantly affecting its price. High volume alone does not establish strong liquidity or a trustworthy project.For example, an order book may contain only a limited number of sell orders. In such a market, a large purchase can execute at an average cost above the displayed price.The difference between the expected price and the execution price is called slippage. Low liquidity and rapid price movements can increase this gap.How to Buy CryptocurrencyThe process of buying cryptocurrency depends on your chosen platform’s services and your country’s rules. On a centralized platform, the basic steps usually follow this sequence:Review the platform’s company details, authorization status, and terms of use.Create an account through its official website or application.Complete the required identity verification.Use a strong password and two-factor authentication.Fund your account using a supported method.Check the asset, trading pair, fees, and order type before buying.Decide how you will store your assets after the transaction.A market order aims to execute against available orders; it does not guarantee an exact execution price. A limit order respects your specified price limit but may remain unfilled.When transferring assets to your wallet, check the network as well as the receiving address. Include a memo or tag when the platform requires one.What to Consider Before Buying CryptocurrencyYou can begin researching a project with its technical document, known as a white paper. You should also assess its working product, developer activity, and token distribution.An ICO is one model projects use to raise funds through token sales. Joining a project early does not establish that its token will gain value or that the team will complete its product.During your research, examine:The problem the project aims to solve and its existing product.The token’s actual use cases.Circulating supply, total supply, and token unlocks.Token allocations to the team and early investors.Smart contract permissions and security reviews.Trading volume, liquidity, and platform terms.A low unit price does not necessarily mean an asset is cheap. For example, if 10 billion tokens are in circulation, a price of 1 lira corresponds to a market capitalization of 10 billion lira.An investment strategy should include your loss limits and investment horizon. Borrowing to trade, concentrating funds in a single asset, and using leverage require separate consideration from a risk management perspective.Why Do Cryptocurrency Prices Rise or Fall?Prices in cryptocurrency markets form at the levels where buyers and sellers transact. Demand, selling pressure, liquidity, and expectations all play a role.Factors that can influence price movements include:Growth or decline in a project’s usage.New tokens entering circulation.Technical upgrades and security problems.Interest rate decisions and global financial conditions.Platform listing and delisting decisions.Large investors’ transactions and liquidations of leveraged positions.A whale is a person or organization holding a large amount of an asset. However, a transfer from a large wallet does not, on its own, prove that a sale has occurred.Volatility describes how much a price fluctuates over time. An asset that rises rapidly can lose value just as quickly.Bitcoin halving reduces the rate of new BTC issuance; it does not halve existing BTC balances. Mining creates new supply, and a slowdown in supply growth alone does not guarantee a price increase.Cryptocurrency Security and StorageIs Cryptocurrency Safe?Network security, platform operations, and user practices require separate assessment. A token operating on a robust blockchain can still have a vulnerability in its smart contract.Similarly, an apparently reliable platform may experience withdrawal problems or account security issues. Technical infrastructure does not guarantee that an asset will retain its value.Cryptocurrency scams often rely on urgency, promises of high returns, and fake support messages. An account using a familiar name or company logo does not prove that its messages are authentic.How Does a Cryptocurrency Wallet Work?A cryptocurrency wallet is a tool that lets you view your assets on a network and authorize transactions. Asset records remain on the blockchain; the wallet manages access and signing functions.A private key is secret information that provides authority to transact with the associated assets. Many personal wallets also provide a recovery phrase to restore access.Someone who knows your recovery phrase may access your assets through a compatible wallet. Changing the application password does not change that phrase.On custodial platforms, the service provider generally manages the private keys. With wallets where you control your own keys, you take responsibility for backups and recovery.Hot Wallets and Cold WalletsA hot wallet uses keys in an internet-connected environment. Mobile applications and browser extensions are examples that make everyday access convenient.Cold storage aims to keep private keys offline. Hardware wallets help protect keys inside the device while signing transactions.FeatureHot walletCold storage approachEase of useConvenient for frequent transactionsMay require an additional device or extra stepsKey environmentInternet-connected deviceOffline environment or dedicated hardwareMain risksMalware, phishingLost backups, physical damage, approving harmful transactionsPurposeEveryday access and applicationsSeparating keys from online threatsA hardware wallet does not make a harmful transaction safe if you approve it. You still need to check the address, amount, and transaction details on the device’s screen.Essential Security ChecklistThese habits can help reduce risks when using wallets and platforms:Never share your recovery phrase with anyone, including support staff.Keep backups somewhere inaccessible to others and protected against physical damage.Download applications from official sources.Check the domain name of any link.Reject unexpected signature requests and token spending approvals.Verify the address, network, and any required memo before transferring assets.Make a small test transfer when appropriate.Disconnecting from a website does not automatically revoke token spending permissions you previously granted. Review unused permissions separately on the relevant network.Cryptocurrency Creation and Acquisition MethodsWhat Is Cryptocurrency Mining?Cryptocurrency mining involves participating in the creation of new blocks on networks that use Proof of Work. Bitcoin miners make numerous attempts to find a hash that meets the network’s target.A miner who produces a valid block can receive the block subsidy permitted by the rules, along with transaction fees. Network nodes also check whether the block complies with those rules.Not every cryptocurrency uses mining. Proof of Stake networks follow a different model based on validators’ staked assets and protocol rules.Ethereum transitioned to Proof of Stake in 2022. As a result, ETH mining no longer takes place on the Ethereum mainnet.How Does Mining Work?The mining method depends on the network’s algorithm and competitive conditions. Common hardware and service models include:MethodMain featureKey considerationsCPU miningUses a computer’s processorMay only be practical for suitable algorithmsGPU miningUses graphics cardsHardware costs and energy consumptionASIC miningUses devices designed for a specific algorithmHigh upfront costs, competition, and device efficiencyCloud miningRents computing power from a remote operatorThe company’s legitimacy, contract terms, and payment conditionsASIC devices are common in Bitcoin mining. Expecting to mine Bitcoin profitably with a home computer overlooks current competition and costs.Profitability calculations should account for electricity, cooling, maintenance, pool fees, and equipment depreciation. Cloud mining contracts do not provide fixed or guaranteed profits either.Acquiring Cryptocurrency Through Staking and AirdropsStaking involves using assets to contribute to network security on supported networks. Alongside rewards, it can involve price declines, service provider risks, and protocol-specific penalties.An airdrop is a token distribution to addresses that meet certain conditions. Projects may use airdrops for promotion, to reward previous users, or to build a community.Not every airdrop comes without requirements or costs. Participation may involve transaction fees, time, or interactions with different applications.Receiving an unexpected token in your wallet does not mean you need to interact with it. Avoid links that request your recovery phrase or ask you to sign suspicious transactions to claim a reward.Cryptocurrencies, Regulations, and the FutureAre There Turkish Cryptocurrency Projects?There are projects developed by teams connected to Turkey, as well as fan tokens associated with Turkish sports clubs. However, “domestic” may refer to a team’s location, a company’s place of incorporation, or its community connections.The description does not mean the asset carries a government guarantee. You should separately examine the project’s team, legal structure, and the rights it offers token holders.Buying a fan token also generally does not mean owning shares in a club or receiving dividends. The project’s and club’s disclosures define the scope of those rights.Is Cryptocurrency Legal?The legal status of crypto assets varies by country and type of activity. Different rules may apply to trading, custody, payments, and service providers.In Turkey, legislation that took effect on July 2, 2024, brought crypto asset service providers under the regulation and supervision of the Capital Markets Board, known as the SPK. On March 13, 2025, the SPK published two communiqués covering establishment, operations, and operating principles.When assessing a platform’s authorization status, finding its name on a list is not sufficient. The SPK explicitly states that inclusion on its temporary “List of Operating Entities” does not constitute authorization.A Central Bank of the Republic of Turkey regulation also prohibits the direct or indirect use of crypto assets in payments. This provision concerns a different activity from buying, selling, or holding crypto assets.The Future of CryptocurrencyThe future of crypto assets depends on usability, security, costs, and the development of regulations. Continued digitalization does not mean every project will succeed or every token will gain value.Stablecoins, asset tokenization, and blockchain applications offer different use cases. Users still need to understand the rights and risks associated with these products.Financial literacy is as important as technical knowledge in this context. Learning how a technology works is a starting point for assessing whether it suits your needs as an investment.Frequently Asked Questions (FAQ)Below are some frequently asked questions and answers about cryptocurrency basics.Why have cryptocurrencies become so popular?: Online access, new applications, and investment interest have increased awareness of cryptocurrencies. Price increases and social media have also attracted attention; popularity alone is not a reliable measure of trustworthiness.What are the risks of investing in cryptocurrency?: Major risks include price losses, low liquidity, platform problems, security vulnerabilities, and fraud. Leveraged trading can lead to the rapid loss of deposited collateral.What should I consider when choosing a cryptocurrency wallet?: Review supported networks, who controls the keys, backup methods, and transaction interfaces. Learn how the wallet’s recovery process works before transferring assets.How do whales affect the market?: Large transactions can affect prices, particularly in markets with low liquidity. However, a single address may represent an exchange or many users, so wallet activity needs context.What determines the value of cryptocurrencies?: Demand, circulating supply, use cases, liquidity, and expectations influence prices. Limited supply or strong technology alone does not ensure lasting price appreciation.Are airdrops and mining safe ways to earn cryptocurrency?: Both methods involve costs and risks. Examine operating expenses for mining, and check the source and requested wallet permissions for airdrops.Once you understand the basic concepts of cryptocurrency, the next step is to learn about the tools you use. Build your knowledge with JrKripto’s guides to cryptocurrency wallets, Bitcoin mining, and smart contracts.
The Bitcoin network creates new BTC according to predefined rules. Halving is central to these rules, slowing new Bitcoin issuance roughly every four years. Understanding Bitcoin halving makes it easier to assess both its supply structure and mining economics. However, its effects extend beyond price movements; miner revenue, transaction fees, and market expectations also matter.What Is Bitcoin Halving, and What Does It Do?Bitcoin halving cuts the amount of new BTC miners can receive for a valid block in half. The event is also known as a reward halving. The Bitcoin network applies this reduction every 210,000 blocks. Since the network targets an average block time of ten minutes, halvings occur approximately every four years.Technically, the component that halves is new BTC issuance, known as the “block subsidy.” Transaction fees collected by miners do not halve under the same rule.Why is halving part of Bitcoin’s design?Bitcoin’s supply model creates new coins in progressively smaller amounts. When the network launched, the subsidy was 50 BTC per block. Each halving reduces the amount of new BTC available per block during the following period. This gradually slows the rate of new issuance. The structure allows Bitcoin to approach its supply limit of approximately 21 million coins. Under the current protocol rules, new BTC issuance is expected to end around 2140. Source: Bitcoin.org However, limited supply alone does not determine market value. Demand, liquidity, and users’ expectations also influence an asset’s price. For example, production of a product may decline while buyer interest also falls. A reduction in issuance should therefore not automatically be equated with a price increase.What does halving change, and what stays the same?Halving does not reduce the amount of Bitcoin in your wallet. If you hold 0.2 BTC before the event, your balance does not change solely because of halving.The protocol also does not require Bitcoin’s price to halve or double. Trading activity in the market determines its price.The main distinctions are:ComponentDirect effect of halvingNew BTC per blockFalls by halfExisting wallet balancesRemain unchangedTotal existing BTCDoes not halveBitcoin’s market priceNo automatic price adjustmentTransaction fees within a blockDo not automatically halveTarget average block timeRemains ten minutesBitcoin halving should therefore not be understood as an event that divides existing holdings. It changes the amount of new Bitcoin that subsequent blocks can create.How Does Bitcoin Halving Work?Bitcoin halving depends on block height. The network uses the number of blocks rather than a particular calendar date. Block height identifies a block’s position in the chain. When the network reaches a halving threshold, the permitted subsidy decreases.Block height and the halving scheduleThe first halving occurred at block 210,000. Subsequent halvings took effect at blocks 420,000, 630,000, and 840,000. Source: Bitcoin.org The next threshold is block 1,050,000. From that block onward, new BTC issuance per block will fall to half the current subsidy. Miners cannot create any amount of new BTC they choose. Full nodes validate blocks against the protocol rules and reject blocks that exceed the permitted reward.This mechanism shows that the supply schedule rests on more than an announcement. The rules operate within the software that checks block validity.Block subsidies and transaction feesA miner’s revenue from a block has two main components:The amount of new BTC permitted by the protocol.Fees from the transactions included in the block.Miners can operate independently or combine their computing power in a pool. Within pools, revenue distribution depends on the payment model. For a simplified example, suppose the block subsidy is 3.125 BTC. Assume the block also contains 0.2 BTC in transaction fees. The total reward associated with that block would be 3.325 BTC. At the next halving, the subsidy falls to 1.5625 BTC.If transaction fees remain at 0.2 BTC, the total becomes 1.7625 BTC. Total revenue therefore does not fall by exactly half in this example.Revenue componentExample before halvingExample after halvingBlock subsidy3.125 BTC1.5625 BTCTransaction fees0.2 BTC0.2 BTCTotal3.325 BTC1.7625 BTCThe transaction fee amount in the table is hypothetical. Actual total fees can differ from one block to another.How does halving affect daily Bitcoin issuance?A target average block time of ten minutes corresponds to approximately 144 blocks per day. This provides a calculation assumption for explaining daily issuance.At 3.125 BTC per block, daily new supply would be approximately 450 BTC. After the next halving, the same number of blocks would produce approximately 225 BTC.The calculation works as follows:Current period: 144 × 3.125 = 450 BTC.Next period: 144 × 1.5625 = 225 BTC.However, the network does not produce exactly 144 blocks every day. Block discovery times vary, so actual daily issuance also fluctuates. These figures do not represent the amount of Bitcoin that will be sold on exchanges each day. Miners may hold new BTC, sell part of it, or draw on earlier reserves.Bitcoin Halving Dates and the Next HalvingAs of October 2026, Bitcoin has undergone four halvings. The most recent occurred on April 20, 2024, at block 840,000. That event reduced the block subsidy from 6.25 BTC to 3.125 BTC. The next halving is expected around 2028.Historical Bitcoin halving datesThe table below shows previous Bitcoin halvings and the next threshold:HalvingDateBlock heightPrevious subsidyNew subsidyFirstNovember 28, 2012210,00050 BTC25 BTCSecondJuly 9, 2016420,00025 BTC12.5 BTCThirdMay 11, 2020630,00012.5 BTC6.25 BTCFourthApril 20, 2024840,0006.25 BTC3.125 BTCFifthApproximately 20281,050,0003.125 BTC1.5625 BTCThe historical dates refer to completed events, while 2028 is an estimated year.When is the next Bitcoin halving?The next Bitcoin halving will occur when the network reaches block 1,050,000. Although the expected year is 2028, the exact date and time are not fixed in advance. This is because blocks do not arrive at precisely ten-minute intervals. Some take less time to find, while others take longer.Countdown tools combine the remaining block count with an estimated block time. As the network progresses, the estimated date may change. For example, two countdown websites may display different dates. Differences in their average block time assumptions and update times can explain this. When an article gives a precise date, check when the estimate was calculated. Block height is the determining factor.At the time of writing, the figures were as follows: How to follow a halving countdownWhen reviewing a countdown, look beyond the number of days remaining. Examine the data behind the estimate as well.The following information can help:The network’s current block height.The block threshold for the next halving.The number of blocks remaining until that threshold.The average block time used in the calculation.The time of the latest data update.For example, suppose 10,000 blocks remain between the current height and the threshold. Using ten minutes per block produces an estimate of approximately 69.4 days. This is a hypothetical example explaining the method. The actual duration may change depending on how quickly subsequent blocks arrive.How Does Bitcoin Halving Affect Price and Miners?When people discuss Bitcoin halving’s effects, price often comes to mind first. However, the direct change occurs in new BTC issuance.The price response depends on other variables. For miners, revenue measured in Bitcoin and overall business profitability are also different measures.Does lower issuance guarantee a price increase?Halving reduces the flow of new BTC that can enter the market. If demand remains steady or increases, this may support the price. However, existing Bitcoin holders can also sell. Market selling pressure therefore extends beyond newly mined coins.Other factors that may influence the price include:Investor demand for Bitcoin.Global liquidity and interest rate conditions.Buying and selling by large investors.Flows into and out of funds and investment products.Regulatory developments and market news.Leveraged positions and liquidations.The halving schedule is also known in advance. Investors may reflect their expectations in prices before the event occurs. Therefore, a 50% reduction in issuance does not imply that the price must double.How should past halving cycles be interpreted?Market analyses frequently examine price movements surrounding previous halvings. However, a rally following an event does not establish that the event was its sole cause. Bitcoin’s investor base, market size, and economic conditions have changed across periods. These differences make direct comparisons between cycles difficult.The chosen start and end dates also affect the result. The month following a halving may present a different picture from the following year.For example, selecting only a period that ends with gains may conceal sharp declines along the way. Examine volatility alongside returns when reviewing a price chart. Past cycles provide context for research. They do not establish that future cycles will repeat the same timing, gains, or peaks.Miner revenue and cost pressuresAfter halving, miners receive less new BTC per block. Electricity, maintenance, and equipment expenses do not automatically fall by half. This can pressure businesses with particularly high operating costs. More efficient equipment and favorable energy costs can widen the differences between operators.For a simplified calculation, assume Bitcoin trades at $80,000. This is an illustrative figure, not a current market price.A 3.125 BTC subsidy would be worth $250,000. When the subsidy falls to 1.5625 BTC, its value at the same price drops to $125,000. However, these amounts do not represent net profit. Transaction fees, pool distributions, energy expenses, and other costs also enter the calculation.Changes in Bitcoin’s price affect dollar-denominated revenue as well. A decline in BTC production and a decline in a business’s total revenue may therefore occur at different rates.What to Monitor Around Halving and Common MisconceptionsA single countdown screen does not provide a complete understanding of halving. Reviewing the supply schedule, network data, and market conditions together offers a clearer picture.Do not confuse precise price targets or guaranteed return claims with the technical halving rule. The protocol specifies the subsidy amount; it does not determine investment outcomes.Which data can be useful?Different data points answer different questions in halving research. Block height helps explain timing, while miner revenue helps assess economic effects.DataWhat it helps assessBlock heightDistance to the halving thresholdAverage block timeWhy the estimated date changesHash rateThe network’s estimated total computing powerMining difficultyCompetitive conditions for block productionTransaction feesThe fee component of miner revenueTrading volume and liquidityMarket trading conditionsAvoid drawing major conclusions from a single day’s changes. For example, the measurement window can affect a short-term hash rate estimate.Similarly, high transaction fees do not necessarily mean persistently high miner revenue. Distinguish temporary congestion from longer-lasting demand when assessing fees.Transaction fees and long-term securityAs new BTC issuance declines, transaction fees become increasingly important to miner revenue. Once the subsidy ends, the current design allows miners to continue earning fees.However, future fee levels cannot be known with certainty today. Demand for block space and users’ payment preferences influence how this revenue develops.Bitcoin’s long-term security budget is therefore a subject of research. Academic studies examine the importance of sufficient miner revenue as the subsidy declines.Halving does not include a rule that directly doubles users’ transaction fees. Network congestion and competition for transaction priority affect fees separately.Do users need to take any action?Bitcoin holders do not need to move their coins or visit a special link for halving. The event takes place under the network’s existing rules.Messages such as “connect your wallet to claim your halving reward” do not reflect how the protocol works. Halving is not a campaign that automatically distributes additional coins to Bitcoin holders.You also do not need to share your wallet’s recovery phrase. A page requesting those words should not be trusted simply because it mentions halving.Common misconceptions include:Thinking the BTC balance in your wallet will halve.Assuming the price will automatically double.Believing every halving has a fixed calendar date.Thinking transaction fees also halve.Expecting previous price cycles to repeat exactly.Frequently Asked Questions (FAQ)Below are some frequently asked questions and answers about Bitcoin halving.How often does Bitcoin halving occur?It occurs every 210,000 blocks. This corresponds to approximately four years, although the exact calendar interval depends on block production speed.When did the last Bitcoin halving take place?The most recent halving occurred on April 20, 2024, at block 840,000. The block subsidy fell from 6.25 BTC to 3.125 BTC.When is the next Bitcoin halving?It is expected around 2028, at block 1,050,000. The exact date and time may vary depending on the network’s progress.Will Bitcoin’s price definitely rise after halving?No. Halving reduces new issuance, but it does not guarantee market demand. Economic conditions and investor behavior can affect the price.Does halving reduce the Bitcoin in my wallet?No. Halving changes the amount of BTC that new blocks can create. Your existing wallet balance does not decrease solely because of halving.Will mining end once all bitcoins have been issued?The end of new BTC issuance does not mean block production stops. Under the current design, miners can continue earning transaction fees by including transactions in blocks.Explore JrKripto’s Bitcoin mining, Proof of Work, and Lightning Network guides to better understand how Bitcoin and cryptocurrencies work.
When you open a Bitcoin or another cryptocurrency chart, you see colorful candles of different sizes. These shapes show where the price started, which levels it reached, and where it closed during a particular period. Understanding crypto candlestick charts helps you assess price movements more clearly. However, reading charts does not mean predicting the future with certainty; you need to examine candles alongside trading volume, market conditions, and the timeframe.What Are Crypto Candlestick Charts, and What Do They Show?A candlestick chart displays an asset’s price movements over specific time intervals. Each candle combines four key prices for the selected period: open, high, low, and close. Source: TradingView The abbreviation OHLC, which frequently appears on chart screens, comes from the initials of these four terms.For example, each candle on a one-hour Bitcoin chart represents one hour of price movement. On a daily chart, a single candle summarizes an entire day’s data. This structure shows more than whether the price rose or fell. It also reveals the fluctuations within the period and where the closing price sits within that range.The candle body and wicksThe thick section of a candle is called the “body.” It shows the distance between the opening and closing prices.The thin lines extending above and below the body are called “wicks” or “shadows.” The upper wick reaches the period’s highest price, while the lower wick reaches its lowest.Candle componentInformation it showsOpenThe price at the beginning of the selected periodCloseThe final price of the completed periodHighThe highest price reached during the periodLowThe lowest price reached during the periodBodyThe distance between the opening and closing pricesWicksPrice movements beyond the bodyA candle may have no upper or lower wick. For example, a bullish candle has no upper wick if its closing price equals the period’s high.A long body shows a large difference between the opening and closing prices. A long wick shows that the price moved away from the body but retreated from that level before the close.What do green and red candles mean?On standard candlestick charts, green usually means the closing price was higher than the opening price. Red means the closing price was lower.However, colors can vary according to platform settings. When using a chart for the first time, check what its colors represent.A green candle does not mean the price rose continuously throughout the period. The price may fall first, then recover and close above the open.Similarly, a strong upward movement can occur within a red candle. If the closing price remains below the open, the candle still appears red.The candle’s color and the daily percentage change on the screen can also tell different stories. One uses the selected candle’s opening price, while the other may use a different comparison period.How to Read Crypto Candlestick ChartsLearning how to read crypto candlestick charts starts with choosing the right data. The trading pair, timeframe, and whether the candle has closed all affect your interpretation.Before focusing on a particular shape, understand which market the chart represents. Then compare the candle’s details with the surrounding price movements.Choosing the trading pair and timeframeA BTC/USDT chart shows Bitcoin’s price in USDT. A BTC/EUR chart shows its price in euros.Seeing the same asset on two charts is therefore not enough for a direct comparison. Also check which currency expresses the price.Because crypto markets trade continuously, a daily candle’s close does not mean the market has closed. It simply marks the end of the selected daily measurement period.Common timeframes include:TimeframePeriod covered by each candleMain focus5 minutesFive minutes of price movementVery short-term fluctuations15 minutesFifteen minutes of price movementSmaller intraday movements1 hourOne hour of price movementIntraday price structure4 hoursFour hours of price movementA broader short-term view1 dayOne day of price movementTrends across days and weeks1 weekOne week of price movementLonger-term price structureThe same asset can look different across timeframes. A daily chart may show an ongoing decline while an hourly chart shows a recovery.For example, a few hours of rising prices do not prove that a weeks-long decline has ended. It helps to assess short-term movements within a broader timeframe.A numerical example of reading a candleSuppose a hypothetical cryptocurrency records these prices over one hour:Open: $100.High: $108.Low: $97.Close: $105.Because the close is above the open, the candle appears green under standard settings. Its body extends from $100 to $105. The upper wick covers the range from $105 to $108. The lower wick represents the movement between $97 and $100.In this example, the open-to-close change is 5%. However, the full price range during the period is $11, reflecting the difference between the high and low. The candle alone does not reveal whether the price reached $97 or $108 first. To see that detail, you need a shorter timeframe or individual trade data.For example, the price may have risen to $108 before falling to $97. The reverse is also possible; both paths can produce the same OHLC values. Let’s look at the example above: Each candle on the ETH/USDT chart represents one minute of price movement. The candle shown in the information bar opens at 2,446.19 USDT and reaches a high of 2,447.49 USDT. Its low is 2,445.92 USDT, while the value in the closing price field is 2,447.37 USDT. Since this value is above the opening price, the candle appears green.The candle’s body extends from 2,446.19 to 2,447.37 USDT. Its lower wick reaches 2,445.92 USDT, while its upper wick reaches 2,447.49 USDT. This single candle therefore shows the price range within one minute.Why does an unfinished candle change?The candle at the far right of a chart is often still forming. As new trades occur, its body, wicks, and color can change. A one-hour candle may still have twenty minutes remaining. An apparently strong rise can weaken during that time or turn into a red close.Therefore, avoid treating a developing candle as a completed pattern. The candle close determines its final shape for the selected period. Waiting for the close does not guarantee the next price movement. It simply reduces the risk of drawing firm conclusions from a shape that is still changing.Basic Crypto Candlestick PatternsCandlestick patterns are names given to specific formations involving one or several candles. In technical analysis, these structures help classify price behavior.However, a pattern’s name alone provides limited information. The preceding trend, its location on the chart, and subsequent movements affect its interpretation.Doji, hammer, and shooting starA doji forms when the opening and closing prices are very close together. Its body is small, while its wicks can vary in length. This shape shows little difference between the open and close at the end of the period. Analysts may associate it with indecision, but not every doji signals a trend reversal.A hammer has a small body near the top of the candle. Its lower wick is noticeably long, while its upper wick may be short or absent. When this structure appears after a decline, it can show that the price recovered from lower levels. Subsequent candles help assess whether that recovery continues. A shooting star has a small body near the bottom of the candle. Its long upper wick shows that the price rose before pulling back.After an upward move, analysts may interpret it as a possible sign of weakening momentum. Similar shapes can carry different names and meanings in different trends, highlighting the importance of context.Bullish and bearish engulfing patternsEngulfing patterns consist of two candles. The key feature is that the second candle’s body covers the first candle’s body. In a bullish engulfing pattern, the first candle is bearish and the second is bullish. The second body engulfs the previous body.In a bearish engulfing pattern, the first candle is bullish. The following bearish candle’s body engulfs the previous body. The second candle does not necessarily need to engulf all the wicks. A platform’s pattern definition may also include additional conditions.For example, suppose the first candle opens at $50 and closes at $48. If the next opens at $47.50 and closes at $51, its body covers the previous body. This structure shows a notable recovery during the second period. However, subsequent candles can still move lower.Morning star and evening starA morning star is a three-candle structure that analysts assess after a decline. The first candle shows a clear drop, the second has a small body, and the third shows a recovery. An evening star is its bearish counterpart. It consists of a bullish candle, a small-bodied candle, and then a clearly bearish candle.Because crypto markets trade continuously, classic price gaps do not always appear. Understanding the pattern definition in use is therefore more helpful than relying solely on visual similarity.PatternBasic appearancePossible condition under reviewDojiOpen and close are close togetherIndecision or balanceHammerSmall body with a long lower wickPotential recovery after a declineShooting starSmall body with a long upper wickPotential weakening after a riseBullish engulfingA bullish body engulfs the previous bearish bodyPotential strengthening of buying pressureBearish engulfingA bearish body engulfs the previous bullish bodyPotential strengthening of selling pressureMorning starBearish candle, small body, bullish candlePossible upward reversalEvening starBullish candle, small body, bearish candlePossible downward reversalThis table offers a starting point for recognizing patterns. None of these formations constitutes a standalone instruction to buy or sell.Reading Candles Alongside Volume, Trends, and Price LevelsA candle’s location on the chart matters as much as its shape. Two similar candles can carry different implications under different market conditions.Crypto technical analysis therefore involves assessing candles alongside other data. The aim is to gather more information about the same price movement.What does trading volume show?Trading volume shows how much trading occurred during a particular period. A platform may express it in units of the asset or monetary value. A long candle indicates that the price moved across a wide range. However, it does not reveal how much trading occurred; volume provides that information.For example, volume may increase as the price moves above an important level. Analysts may interpret this as a move accompanied by greater trading activity. However, rising volume does not guarantee that an upward move will continue. Heavy selling or short-lived panic can also generate high volume.Every trade also has both a buyer and a seller. Therefore, do not interpret a green volume bar as meaning that “only buying occurred.”Volume is a separate data point that complements the price chart.Support, resistance, and the current trendSupport refers to an area where the price previously reacted during a decline. Resistance describes an area where the price previously struggled during a rise. These areas are not precise, unbreakable barriers. The price may fluctuate around a level or move through the entire zone.Suppose a hypothetical asset has recovered several times around $20. A later candle with a long lower wick in the same area offers an observation worth examining. However, a close below $20 followed by sustained trading below that level may weaken the earlier expectation. When assessing a pattern, also consider what would invalidate your interpretation.To assess a trend, you can look for higher highs and higher lows, or lower highs and lower lows. In a sideways market, the price may move within a particular range. Broader market conditions and news can outweigh chart patterns. It is therefore unwise to associate the same shape with the same outcome in every situation.An example chart-review processWhen learning to read charts, you can follow a consistent review process. This helps prevent you from attaching too much significance to the first shape you notice.Check the trading pair and the currency used to express the price.Identify the timeframe.Examine the trend in the broader view.Read the candle’s open, close, high, and low.Compare its body and wicks with nearby candles.Assess volume and important price areas.Check whether the candle has closed.Note any information that contradicts your initial interpretation.For example, keep your observation specific when you see a long lower wick. Avoid immediately concluding that buyers have definitely taken control.“The price fell during the period, then closed away from its low” describes what the candle directly shows.Common Mistakes When Reading Crypto Candlestick ChartsLearning candlestick charts involves more than memorizing pattern names. You also need to understand what information the chart shows and what it leaves out. Especially in fast-moving markets, rushed interpretations can turn a limited observation into a firm expectation.Drawing definite conclusions from a single candleOne green candle does not prove that a downtrend has ended. A long red candle does not guarantee that the price will fall during the next period.Common mistakes include:Treating an unfinished candle as a completed pattern.Calling every long lower wick a hammer.Sharing a chart without specifying its timeframe.Treating one pattern as a guaranteed reversal signal.Selecting only candles that support an existing expectation.Ignoring volume and market conditions.Patterns classify past and current price behavior. They do not predetermine the prices at which future trades will occur.Confusing standard candles with Heikin AshiSome chart types display prices using different calculations. Unlike standard candles, Heikin Ashi uses calculated opening and closing values. This method can make price movements appear smoother. However, the displayed values may differ from the actual opening and closing prices for the period. Always check the chart type before interpreting its candles. Applying standard candlestick-reading rules identically to every chart type can be misleading.Frequently Asked Questions (FAQ)Below are some frequently asked questions and answers about crypto candlestick charts.What is the difference between a crypto candlestick chart and a line chart?: A line chart usually connects closing prices for the selected periods. A candlestick chart displays the open, close, high, and low together. It therefore provides more detail about movement within each period.Does a green candle mean the price will keep rising?: No. A standard green candle means its closing price is higher than its opening price. It does not guarantee the direction of the next period.What does a long wick mean?: It shows that the price reached a level beyond the body and then moved back. To understand why, examine the surrounding candles and market data.Why does the candle close matter?: An unfinished candle can change its shape and color. The close establishes its final appearance for the selected period, but it does not determine the next move.Which candlestick pattern is the most reliable?: No single pattern produces certain results across every market and timeframe. Its location, market conditions, and the evaluation method all affect the outcome.Can you trade using candlestick charts alone?: Candles help you examine price behavior, but they do not reveal every risk. Trading costs, liquidity, and unexpected news can also affect the outcome.Explore JrKripto’s guides to cryptocurrency basics, tokenomics, and the Fear and Greed Index to better understand price movements.
You may encounter smart contracts when swapping cryptocurrencies, buying NFTs, or depositing assets into a DeFi application. These programs run predefined rules on a blockchain, allowing software to handle many transactions. Understanding what a smart contract is helps you see how applications manage your money. However, automation does not guarantee security; the code, administrator privileges, and permissions you grant also matter.What Is a Smart Contract, and What Does It Do?A smart contract is a computer program that runs on a blockchain and applies specific rules. When a user or another contract calls the program, its code checks the relevant conditions and executes the defined operations.For example, a program may allow users to withdraw their tokens after a particular date. Another may manage swaps between two different tokens. The outcome depends on the contract’s rules and the data available on the blockchain at that moment.The basic logic behind smart contractsA vending machine offers a simple way to understand smart contracts. You select a product, pay the required amount, and wait for the machine to dispense it. The machine acts according to predefined conditions.Smart contracts evaluate inputs in a similar way. However, they can manage token balances, access rights, or application records instead of physical products.For example, a hypothetical digital ticketing application could follow these rules:The user pays the required ticket price.The contract checks whether the sale is open.If tickets remain available, it creates a digital ticket for the user.It updates the number of available tickets.If the transaction conditions are not met, it rejects the purchase.The rules written into the program determine the outcome. An incorrectly defined rule can also produce unexpected results.How they differ from traditional contractsA traditional contract describes the parties’ obligations in writing. A smart contract executes programmable operations through code. In this context, the word “contract” primarily describes a technical mechanism.Not every smart contract represents an agreement signed between two people. A program that manages a token’s transfer rules also falls into this category.FeatureTraditional contractSmart contractHow rules are expressedWritten text and statements by the partiesProgramming codeOperationActions by the parties and relevant institutionsA program triggered by transaction callsVerificationDocuments, records, and reviewsCode, transaction history, and blockchain dataChangesRelevant procedures and decisions by the partiesDepends on the program’s design and permissionsMain challengesDifferences in interpretation and delays in implementationCode errors and incorrect authorizationSmart contracts are particularly useful for digital transactions with clearly defined rules. However, situations requiring judgment, such as delivery quality, may need additional mechanisms. Their core purpose involves automating processes that depend on specific conditions.How Do Smart Contracts Work?Understanding how smart contracts work involves several stages. First, a developer writes the rules and deploys the program to the relevant network. Users then interact with it through wallets or applications.However, blockchains do not all share the same technical structure. The transaction and fee examples in this guide mainly follow the Ethereum model.Writing and deploying the codeThe developer determines which operations the application will perform. This stage establishes who can withdraw funds, when transfers can occur, and who holds administrative privileges.Solidity is one of the programming languages used to develop smart contracts in the Ethereum ecosystem. Developers compile their code into a format the network can execute. An example of a simple smart contract written in Solidity. The code demonstrates functions for creating units, tracking balances, and transferring assets between users. Source: Solidity The preparation process generally includes these steps:Define the application’s rules and access permissions.Write the contract code.Test normal operations and failure scenarios.Conduct security reviews.Deploy the contract to the target network.Monitor the system during use.Test networks provide an environment where developers can experiment with test assets that carry no real economic value. However, successful tests do not guarantee that problems will never arise in actual use.A deployed contract has an address. Users can check this address to confirm that they are interacting with the correct program. Fake applications may use the same name, so relying on a project’s name alone is insufficient.Starting a transaction and paying gas feesImagine making a transaction through a token swap application. The interface prepares a transaction request using your selected tokens and amount. Your wallet then displays the request for approval.A simplified version of the process looks like this:The user selects the desired operation.The wallet displays the relevant transaction details.The user signs the transaction and sends it to the network.The network executes the transaction according to the contract’s rules.A successful transaction updates the relevant balances or records.On Ethereum, these computational operations consume gas. Your fee depends on the computation required and the network’s fee conditions. A complex transaction may require more computation than a simple transfer.A transaction that the network processes but then reverts because of an error can still incur fees. The network may have already spent computational resources attempting it. Therefore, a “transaction failed” message does not necessarily mean you paid no fee. Example gas consumption for different transaction types on Ethereum. Source: Ethereum.org Simply reading data from a contract works differently. For example, displaying an existing balance does not, by itself, require a new blockchain record. On Ethereum, users normally pay no network fee for these read-only calls.Oracles and external dataSmart contracts cannot independently read information from websites. Data such as exchange rates, weather conditions, or flight delays requires an additional connection. Oracle systems provide information from outside the blockchain in a format smart contracts can use.Consider a hypothetical flight insurance application. Its contract could provide a payout when a delay exceeds a specified duration. However, the flight data provider must first submit the delay information to the blockchain.This introduces another dependency. If the data source supplies incorrect information, the contract may produce an incorrect outcome despite following its rules correctly. Security assessments of oracle-based applications therefore also consider data sources and update mechanisms.Smart Contract Use CasesSmart contract use cases extend beyond cryptocurrency transfers. Financial applications, digital assets, and shared fund management can all use this technology.Applications also differ in their degree of decentralization. Particular companies may retain control over the interface, data sources, or administrative privileges.DeFi, token swaps, and lendingDecentralized finance is a prominent area of smart contract use. These applications handle token swaps, collateral management, and borrowing through programmable rules.On a decentralized exchange, contracts can manage swap conditions and asset movements. In a lending application, they can track collateral ratios, debt records, and liquidation conditions.For example, a user may deposit collateral into a protocol and borrow another asset against it. If the collateral loses value, the position approaches the application’s risk threshold. When liquidation conditions apply, the relevant mechanism may sell part of the collateral.The user faces risks beyond price movements. Contract errors, data source problems, and the application’s economic design can also affect the outcome.Different protocols can also use one another’s contracts. This makes developing new services easier while creating dependencies between applications. A problem in one component may affect other services that rely on it.Tokens, NFTs, and digital rightsToken contracts help manage balances and transfer rules. Depending on their design, they may include functions for creating tokens, burning tokens, or restricting transfers.Consequently, two tokens on the same network may have different characteristics. One may have a fixed supply, while another allows an authorized account to create more tokens. For users, this distinction goes beyond a technical detail.NFT contracts can also track which address owns a particular token and how transfers occur. They additionally manage authorization and related metadata operations.For example, a membership application may require a particular NFT in your wallet to grant access. However, the continued availability of its content is a separate matter. Holding the token does not guarantee that the service provider will operate indefinitely.Shared funds and conditional paymentsSmart contracts can also help manage funds that multiple people use. For example, a community may require approval from several authorized individuals before making certain payments.A hypothetical project fund could use the following structure:Participants deposit assets into the fund’s contract.The project team creates a payment request.Authorized individuals review the request.The payment proceeds once it receives enough approvals.Participants can examine the transaction history.Similar systems can support payments in stages. However, the design must establish how the program will determine whether the work is complete. If human approval or external data is necessary, those elements become part of the system’s trust model.These examples show why defining the scope of automation matters. A blockchain payment and the quality of a real-world service require different assessments.Smart Contract Benefits and RisksSmart contract benefits include automation, traceability, and the ability for different applications to work together. However, these same features can create risks when design flaws or malicious activity come into play.Evaluating an application requires looking beyond its functionality. Its code security, governance structure, and requested permissions also deserve attention.Automation and transparencySmart contracts make it easier to execute repetitive operations under consistent rules. This can reduce manual checks and recordkeeping in some processes.On public networks, users can examine transaction history. For contracts with verified source code, developers can assess whether the published code matches the program on the blockchain.The main benefits include:Applying rules through software.Making transaction history traceable.Allowing digital assets to work across applications.Automating repetitive processes.Reducing manual intervention where the design supports it.However, transparency does not mean everyone can easily understand the code. Public access to a program also does not replace a security review. Clear explanations and understandable transaction screens therefore matter.Code errors and security auditsLike other software, smart contracts can contain errors. Incorrect access controls, unexpected contract interactions, or calculation problems can cause asset losses.Attackers do not have to exploit a vulnerability in a single function. They may also exploit relationships between multiple operations or applications. Security assessments should therefore cover the economic design alongside the code.Independent audits help identify potential problems. However, an audit report does not guarantee that vulnerabilities will never emerge. The code version it covers and whether the team addressed its findings both matter.The following questions can guide your review of a project:Is the audit report publicly available?Do the audited contracts match the version currently in use?Has the team addressed critical findings?Does the project provide a channel for reporting vulnerabilities?Has the team explained its emergency procedures?These checks do not eliminate risk. However, they provide more information than relying solely on an “audited” label.Administrator privileges and upgradeabilityA common description of smart contracts is that their code cannot change. However, some applications use special architectures to update their behavior.In structures known as proxies, users can continue interacting with the same address. An authorized mechanism can change the implementation that this address points to. This allows developers to introduce fixes or new features.This flexibility raises additional questions about who holds authority. A single account, several signers, or a community vote may control upgrades.Some contracts also include powers to pause operations, change fees, or restrict certain transactions. Therefore, saying an application “uses smart contracts” does not mean it operates without administrative control.How to Use Smart ContractsYou do not need to write code to use a smart contract. Most users interact through an application’s interface and a compatible wallet. Nevertheless, a seemingly simple approval screen may involve extensive permissions.Before starting, check which network the application uses. Also ensure that your wallet supports that network and holds the balance required for transaction fees.What to check before a transactionStarting with a small amount can help you understand the transaction process. However, a successful test does not prove that the contract is secure.You can make the following checks part of your routine:Access the application through its official link.Verify the network and token you intend to use.Compare the contract address with the official documentation.Review the transaction’s total cost and expected outcome.Check the token approval and spending limit.Stop if you do not understand a signature request.Verify the result through a blockchain explorer after the transaction.If your wallet offers transaction simulation, review the expected asset movements. Simulations can help, but do not assume they reveal every risk.Token approvals and disconnectingConnecting to an application and granting token spending permission are different actions. A spending approval may allow a particular contract to use the relevant tokens within a specified limit.For example, you might grant unlimited approval when you only intend to make a small swap. The permission may then extend beyond the amount you plan to use immediately. Where possible, set the spending limit according to your needs.Disconnecting your wallet from a website does not automatically remove previously granted token approvals. Review unused approvals separately and revoke them when necessary. Revoking an approval generally requires a transaction and a network fee on the relevant blockchain.Frequently Asked Questions (FAQ)Below are some frequently asked questions about smart contracts:Do smart contracts only run on Ethereum?: No. Ethereum is a major platform for this technology, but it is not the only option. Different blockchains may use different programming languages and execution models.Do smart contracts run on their own?: They generally require a transaction or a call from another contract. Reaching a particular date does not cause an Ethereum contract to initiate a transaction independently. Scheduled operations can use automation systems that submit external calls.Does using a smart contract cost money?: Transactions that change the blockchain’s state generally require network fees. Some applications may cover these fees on the user’s behalf. However, the network transaction still has a cost.Are smart contracts secure?: Security depends on the contract’s code and the systems it relies on. Audits and testing help reduce risks. Nevertheless, code errors, misuse of privileges, or incorrect user approvals can cause losses.Can funds sent to a smart contract be recovered?: That depends on the contract’s rules. If the program offers a withdrawal or refund function, you must meet its conditions. Since not every contract provides a recovery option, check the withdrawal rules before sending funds.Explore JrKripto’s DeFi, DEX, and crypto wallet guides to learn more about everyday smart contract use.
Microsoft, Alphabet and Goldman Sachs have objected to tokenized versions of their shares trading on OKXICE. The joint venture between OKX and New York Stock Exchange owner Intercontinental Exchange disclosed the additional names in its latest notice.According to OKXICE’s official notice dated October 19, the number of companies objecting has reached 16. Qualcomm, Caterpillar, McDonald’s and Western Digital also joined the list in the latest update. However, the document does not explain each company’s reasons or specify when they submitted their objections.Seven more companies join the objection listThe platform’s October 15 notice listed nine companies. Cerebras Systems, AppLovin, Applied Digital, Rocket Lab and CoreWeave were among them. Verizon, Applied Optoelectronics, Broadcom and UnitedHealth also appeared in that notice.Seven more companies therefore joined the list during the four days between the two notices. The new names span banking, industrial equipment and restaurants, alongside technology. AI infrastructure and technology companies featured prominently in the earlier list.Microsoft, Alphabet and Goldman Sachs appear in the consolidated notice published by the platform. However, the document does not explain their broader positions on tokenization technology. Their objections therefore do not establish that they reject every model of tokenized stock trading.The 63 tickers represent 62 companiesComparing the original trading roster with the objection list reveals an important distinction. OKXICE’s October 4 document contains 63 tickers representing 62 companies. Alphabet appears twice, under GOOG and GOOGL.The same document separately records Cerebras’s objection. However, Cerebras does not appear on the original 63-ticker trading roster. The claim that “17 companies withdrew from the 63 tokenized stocks” therefore conflates two separate lists.The current objections cover 16 companies and 17 tickers in total. Of those, 15 companies and 16 tickers appear on the original roster. Comparing the lists shows that 47 companies on the initial roster have no disclosed objection so far. That does not mean those companies have explicitly endorsed the platform.The platform plans to bring stocks onto the blockchainOKXICE aims to bring retail and institutional investors together on a single tokenized securities platform. ICE and OKC USA each hold a 50% stake in the joint venture.The platform plans to use permissioned Uniswap v4 liquidity pools on X Layer. Users will be able to trade tokenized stocks against supported stablecoins through these pools. The system will use an automated market maker model instead of the order books found on traditional exchanges.Participation requires identity verification, sanctions screening and wallet checks. Operating on a blockchain therefore does not mean anyone can trade without restrictions. The platform will grant access only to wallets that complete the required checks.The model also requires one-to-one backing by underlying shares. The initial notice requires investors to retain equivalent shareholder rights, including dividends and voting rights. The tokenization provider will hold the underlying shares through a registered broker-dealer.The official notice does not mean SEC approvalOKXICE plans to operate under a temporary exemption framework from the U.S. Securities and Exchange Commission. However, the platform’s official document sets out important limits to its regulatory status.According to the document, OKXICE is not registered with the SEC for activities covered by the exemption. The SEC has also not endorsed the merits or accuracy of the disclosures. The platform further states that it will not be subject to Regulation NMS, which governs the traditional U.S. stock market.SEC oversight nevertheless remains in place. The notice explicitly states that operating outside the exemption’s conditions could lead to regulatory enforcement action.
The Lightning Network is a technology designed to speed up Bitcoin payments and reduce the cost of small transfers. This second layer operates on top of Bitcoin, processing payments through interconnected channels. Users can therefore send Bitcoin without waiting for a new block confirmation for every payment. It offers an alternative for everyday purchases, small transfers, and digital services. However, the experience depends on the wallet type, channel liquidity, and service provider’s terms. This guide answers the questions “What is the Lightning Network?” and “How does the Lightning Network work?” We also cover wallet selection, transaction fees, practical steps, and potential risks.What Is the Lightning Network, and Why Does It Matter for Bitcoin?The Lightning Network is a second-layer payment network built on Bitcoin. It allows users to make payments without recording every transfer individually on the Bitcoin blockchain. It achieves this through payment channels between participants.Bitcoin’s base layer builds a shared transaction history by including transactions in blocks. Lightning processes many payments by updating channel balances. Operations such as opening and closing channels connect this activity to the underlying Bitcoin network.This structure aims to increase payment capacity without changing Bitcoin’s fundamental rules. Under suitable conditions, users can complete transfers quickly and at low cost. However, Lightning’s speed and cost advantages vary between transactions.Why Do Bitcoin Transactions Need an Additional Layer?Bitcoin blocks hold a limited amount of transaction data. When network demand rises, users offer fees to secure space in blocks. Transactions offering higher fee rates generally have an advantage when miners select transactions.Bitcoin targets an average block interval of approximately ten minutes. However, this does not mean every transaction receives confirmation within ten minutes. Transaction fees, network congestion, and block timing affect the wait.This can create difficulties for small payments. Paying a high transfer fee for inexpensive digital content, for example, may be uneconomical. Waiting for block confirmations can also slow down the checkout experience.The Lightning Network offers an alternative payment layer for these transactions. Users can rely on existing channels, reducing the need to wait for a new block with every payment.Is the Lightning Network a Separate Coin?The Lightning Network is a network and protocol framework for Bitcoin payments. You do not need to purchase a separate “Lightning coin” to use it. Bitcoin payment amounts are expressed in BTC or its smaller unit, the satoshi.One Bitcoin equals 100 million satoshis. Wallets commonly display small payment amounts as “sat” or “sats.” This makes amounts easier to read without using numerous decimal places.Receiving Bitcoin through Lightning does not mean purchasing a different investment token. However, the service’s custody model matters. A balance in a centralized application may represent Bitcoin the provider manages on your behalf.How Does the Lightning Network Work?The Lightning Network works by connecting payment channels. Participants update their balances to reflect payments within those channels. Each update does not need to become a separate base-layer transaction.Bitcoin transaction rules, digital signatures, and conditional payment mechanisms underpin this model. Although the user interface may look simple, channel management operates behind the scenes. Some wallets automate much of this technical work.Payment Channels and Balance UpdatesA payment channel allows two participants to manage Bitcoin balances between them. In a conventional channel opening, one or both parties provide funds. The opening transaction goes to the Bitcoin base layer and establishes the channel’s funding.Once the channel becomes usable, participants can make payments that update their respective balances. For example, imagine one side of a channel holds 100,000 satoshis. If that participant sends 10,000 satoshis, the balances shift by that amount, excluding fees.There is no need to reopen the channel for every payment. The same channel can carry many payments as long as its capacity and balance distribution allow. This spreads the opening cost across multiple uses.When the channel closes, closing transactions settle the participants’ respective balances on the base layer. The type of closure affects fees and the time required for funds to become available.Routing and Interconnected ChannelsLightning users do not need a direct channel with every recipient. The network can find a payment route to the recipient through suitable channels. This process is known as payment routing.For example, imagine Ayşe has a channel with Bora, who has another channel with Cem. With suitable balances and connectivity, Ayşe can send a payment to Cem through Bora. Bora’s node may charge a fee for routing the payment. Source: Lightning whitepaper. Conditional payment mechanisms link the settlement of transfers along the route. A common mechanism uses contracts called HTLCs, which combine time limits and cryptographic conditions. When payments fail, releasing the funds may require these conditions to resolve.Finding a payment route depends on more than connections between nodes. The channels along the route must also have sufficient liquidity in the correct direction.Channel Capacity and LiquidityChannel capacity refers to the total amount of Bitcoin held in a channel. Liquidity describes the direction in which those funds can support payments. These concepts are not interchangeable.A channel may have a high total capacity. However, if the balance sits on the other side, you may be unable to send a large payment. Similarly, receiving payments requires funds that can move from the other side toward you.The basic distinction is:Outbound liquidity: The amount you can send through your channels.Inbound liquidity: The payment capacity available for funds to reach you through your channels.Channel capacity: The total funds held across both sides of the channel.Having a wallet balance therefore does not guarantee that a payment of any size will succeed. Liquidity management by your wallet or service provider directly affects everyday use.How Do You Use the Lightning Network?Using the Lightning Network requires a wallet or service that supports this payment method. Not every wallet capable of holding Bitcoin supports Lightning payments. The sender and recipient need compatible payment methods.The steps vary depending on the application’s custody and channel management model. Some services handle channels behind the scenes and provide a simple payment screen. Others offer greater control over channel opening and liquidity management.Choosing a Lightning WalletWhen choosing a Lightning wallet, first check who controls the private keys. With custodial services, the provider manages funds and payment infrastructure on the user’s behalf. With non-custodial solutions, the user retains control of the relevant keys.Custodial applications can offer convenience. However, withdrawals, account access, and service continuity may depend on the provider. Non-custodial use places more responsibility for backups and security on the user.Compare the following when selecting a wallet:Custody model and private key control.Channel opening, liquidity, and payment fees.Options for sending and receiving Bitcoin on the base layer.Recovery procedures and required backups.Payment limits and supported payment formats.Update history and official support documentation.A simple interface does not mean every operation behind the scenes is free. Pay particular attention to initial funding costs and transactions requiring additional liquidity.Sending and Receiving Bitcoin Through LightningA common Lightning payment method uses a payment request created by the recipient. This request is called an invoice. Wallets typically display it as a QR code or text that users can copy.BOLT 11 invoices include payment information, an expiration time, and relevant technical details. Some invoices specify the amount in advance. In other cases, the sender enters the payment amount.The basic sending process is:Obtain a current Lightning invoice from the recipient.Scan the QR code or paste the invoice into your wallet.Check the amount, description, and estimated fee.Confirm the payment and wait for the result.Verify through the application that the recipient received the payment.To receive a payment, select Lightning in your wallet’s “Receive” section. If necessary, enter an amount and description to create a new invoice. Then share it with the sender.Some applications support more convenient payment identifiers, such as Lightning Address. However, support varies by wallet. A standard Bitcoin address and a Lightning invoice are different payment formats.What Should You Do if a Payment Fails?A Lightning payment can fail when no suitable route exists or liquidity is insufficient. An expired invoice can also prevent payment. Availability problems with the recipient’s service may be another cause.First, read the transaction status shown by your wallet. Do not assume a “pending” or “processing” payment has failed and immediately repeat it. Paying a new invoice before the original status becomes clear could result in a duplicate payment.Once failure is confirmed, you can request a new invoice from the recipient. You can also check the amount, fee limit, and wallet warnings. If the problem continues, follow the guidance in the official support documentation.Lightning Network Benefits, Fees, and RisksLightning’s most prominent use case is fast, small Bitcoin payments. However, assessing its benefits also requires considering total costs and technical requirements. Bitcoin’s base layer and Lightning serve different needs.Fast Payments and MicropaymentsUnder suitable conditions, Lightning payments can complete within seconds. Users do not need to wait for a new Bitcoin block with every payment. This matters for businesses that want immediate payment confirmation.Small transfers can also become more practical. Examples include small contributions to content creators and pay-per-use services. However, their feasibility depends on the service’s fees and infrastructure.Key Lightning use cases include:Paying with Bitcoin for everyday purchases.Sending tips and donations to content creators.Making small payments for digital services.Transferring Bitcoin between supporting services.Payment models based on usage.Lightning does not eliminate Bitcoin’s price volatility. The lira or dollar value of a payment can change with Bitcoin’s price. Businesses should assess pricing and conversion costs separately.Lightning Network Transaction FeesLightning Network transaction fees depend on the payment route and the service used. Intermediary nodes may charge a fixed base fee and an amount-based fee. Wallets or service providers may add further charges.Opening and closing channels can require Bitcoin base-layer transaction fees. Acquiring additional inbound liquidity or converting between payment layers can also incur costs. Looking only at the routing fee on the payment screen may therefore be insufficient.The following comparison summarizes the main differences:FeatureBitcoin Base LayerLightning NetworkTransaction structureTransfers appear on the blockchainPayments update channel balancesConfirmation processDepends on blocks and required confirmationsCan complete within seconds under suitable conditionsFeesTransaction data size and demand for block space matterRoute, amount, and service terms matterCapacity requirementsRequires spendable funds and transaction feesRequires funds and sufficient directional liquidityUsageOn-chain Bitcoin transfersSuitable for frequent, small paymentsFor example, imagine you regularly shop at a café that accepts Bitcoin. Sending an on-chain payment for every purchase can generate separate transaction fees. Lightning lets you make repeated payments through available channels.However, this convenience does not mean every user faces identical costs. Someone with an existing Lightning balance may pay different fees from a first-time wallet user. Initial use may involve channel opening, service, or liquidity fees.Do not assess costs based on a single payment alone. Consider the entire process, from funding your wallet to withdrawing the remaining balance. Fixed service fees can represent a significant share of the total, particularly for small amounts.The following questions can help when choosing a payment method:Does the recipient or business support Lightning?Does my wallet already have a usable Lightning balance?Will I make this payment once or regularly?Does the payment require a new channel or additional liquidity?How much will moving the remaining balance to the base layer cost?Route capacity and liquidity can become more significant for larger transfers. Some wallets may attempt to complete a payment by splitting it across multiple routes. However, this feature does not guarantee that every amount will arrive successfully under all conditions.An on-chain transfer removes the need to manage channel liquidity. In return, users must account for block confirmations and current transaction fees. The choice depends on the transfer amount, frequency, and the recipient’s supported methods. Example Lightning routing fee calculation for a 5,000-satoshi Bitcoin payment. The result is based on the selected route and fee assumptions; actual costs may vary. Source: Bitcoin Calculator Making a small test payment can help you understand the interface and fees. You can then review the amount sent and charges incurred in your transaction history. This provides a more realistic cost expectation for future payments.Security, Backups, and Service Provider RisksLightning security relies on Bitcoin’s underlying transaction rules. However, channel management, software, and custody models introduce additional responsibilities. Your chosen wallet determines how those responsibilities are distributed.Protecting channel state information matters in non-custodial use. Some applications require channel backups or other recovery mechanisms alongside recovery phrases. Do not assume that writing down the recovery words is sufficient in every case.Keep node software updated and follow official backup instructions. Some systems use watchtowers to monitor malicious closures involving outdated channel states. However, these services do not eliminate every security risk.A unilateral channel closure can delay access to funds. Timelocks and base-layer fees can affect the exit process. Fast Lightning payments and fast channel exits are therefore different things.With custodial services, the provider’s security and continued operation matter. Account restrictions, withdrawal problems, or a service shutdown can affect access to your funds. Using Lightning does not remove these counterparty risks.Frequently Asked Questions (FAQ)Below are brief answers to common questions about the Lightning Network:What is the Lightning Network? The Lightning Network is a second-layer payment network built on Bitcoin. Payment channels allow users to send Bitcoin without recording every transfer individually on the blockchain.Do I need to buy a separate coin to use the Lightning Network? You do not need a separate token called Lightning for Bitcoin payments. Wallets may display amounts in BTC or satoshis.Is sending Bitcoin through Lightning free? Not every payment is free. Routing, wallet services, liquidity, and channel operations can generate different fees. Check the total cost before confirming a transaction.Does every Bitcoin wallet support Lightning? No, the wallet must support Lightning payments. Sending to a standard Bitcoin address and paying a Lightning invoice are different processes.Can I cancel a Lightning payment? You cannot reverse a completed payment yourself. If you send a payment by mistake, you need to request a refund from the recipient. For pending payments, monitor the status shown by your wallet.Do I need to run my own node to use Lightning? Not every user needs to set up a separate node. Wallets and service providers can manage much of the technical work. However, review the custody, fee, and security conditions that come with that convenience.Explore Bitcoin payment technologies with JrKripto guides. Compare wallets and transfer methods to find a solution that fits your needs.
Crypto staking is a way to earn rewards by contributing digital assets to a blockchain network’s security. Users can participate in staking through several methods on Proof of Stake (PoS) networks. Some run their own validators, while others choose delegation or staking pools. This approach can offer crypto passive income opportunities to users looking to put their assets to work. However, rewards, participation requirements, and rules governing access to assets vary across networks. This guide answers the questions “What is crypto staking?” and “How does staking work?” We also explore staking benefits, staking risks, and return calculations in detail.What Is Crypto Staking and How Does It Work?Crypto staking involves participating in a network’s validation mechanism using supported assets. Participants commit assets as collateral or delegate their stake to validators, depending on network rules. The network distributes staking rewards to participants who meet its requirements.Rewards may come from newly issued tokens or transaction revenue. The distribution method depends on the network’s economic model and the service you use. Staking income should therefore not be equated with a fixed bank interest rate.Staking works differently across networks. Some networks lock assets, while others allow users to transfer them during delegation. On Cardano, for example, users can spend their ADA even while delegating its stake weight.The Proof of Stake MechanismProof of Stake is a consensus mechanism that helps a network agree on a shared transaction history. Under this model, validators help create and verify blocks that follow network rules. Economic incentives and protocol penalties encourage participants to comply.On Proof of Work networks, miners compete to produce blocks using computing power. In PoS systems, staked assets carry economic weight in the validation process. However, validator selection and reward distribution follow different rules across protocols.Ethereum, Cardano, Solana, and Polkadot are among the networks that use PoS-based models. Their hardware requirements, participation thresholds, and penalty mechanisms differ. A staking experience on one network therefore does not necessarily translate directly to another.PoS can reduce energy consumption because it does not require an energy-intensive mining competition. However, lower energy consumption alone does not imply greater decentralization. Stake distribution and validator diversity also shape the network.Validators, Delegation, and Staking PoolsValidators run network software to check transactions and blocks. They can earn rewards when they perform the duties defined by the protocol. Downtime or rule violations can lead to lost rewards and, on some networks, penalties.Delegation allows users to participate in staking without running their own validators. Users assign their assets’ stake weight to a validator of their choice. Rewards are then shared according to network rules and the validator’s commission structure.The custody model for delegation varies by network. In some models, users retain control of their assets in their own wallets. Delegation does not necessarily involve sending tokens to a validator’s personal address.Staking pools combine participation from multiple users. This can enable participation with smaller amounts and allow users to share technical requirements. However, using a pool can introduce additional provider or smart contract risks.Types of Staking and Liquid StakingStaking options differ in technical responsibility, asset control, and liquidity. Someone who wants to manage their own infrastructure may have different needs from someone seeking convenience. Estimated returns should therefore not be the only consideration when choosing a method.These categories are not always entirely separate. A centralized platform can perform on-chain staking on a user’s behalf. A pool can also issue liquid staking tokens to participants.Staking Through Your Own Validator or WalletSolo staking allows you to participate directly in network consensus by running your own validator. You are responsible for hardware, software updates, and maintaining connectivity. The minimum asset requirement depends on the network you choose.This method can reduce reliance on a service provider. However, it requires regular maintenance and technical monitoring. Configuration errors or connectivity problems can affect your rewards.Delegating through a wallet can provide access with fewer technical responsibilities. You select a validator in a supported wallet and approve the relevant transaction. Before proceeding, review commissions, withdrawal conditions, and validator performance.Controlling your wallet’s private keys can offer an important advantage. However, this control does not eliminate every network or validator risk.Staking Through Centralized PlatformsCentralized exchanges and some service providers manage staking on users’ behalf. Users typically select an asset and participation amount through the platform’s interface. The provider handles the technical operations and reward distribution.This model can offer convenience for users who do not want to manage their own wallets or validators. However, access to assets becomes subject to the platform’s custody and withdrawal policies. Commissions can also reduce the rewards users receive.It is important to distinguish a platform’s staking product from its other yield products. Not every product listed under “Earn” or a similar category provides PoS staking. Some generate returns through lending or other financial activities.Check the product description to understand where rewards come from. Also review the service’s availability in your country and its user agreement.What Is Liquid Staking?Liquid staking provides liquid tokens representing a claim on staked assets. These tokens may be tradable on supported markets or usable in other applications. The underlying assets continue participating in the relevant staking arrangement.In the Ethereum ecosystem, stETH and rETH are examples of liquid staking tokens. However, not all liquid staking tokens use the same accounting method. Some adjust token balances, while others increase the token’s conversion rate against the underlying asset.You therefore do not necessarily receive one token for every unit deposited. The protocol’s conversion rate, fees, and reward accounting method affect the outcome. Understanding this mechanism before participating is important.Liquid staking can increase flexibility in how assets are used. However, it introduces smart contract, liquidity, and price divergence risks. Using the token in other DeFi applications can add further layers of risk.Selling a liquid staking token on the market and redeeming it through the protocol are different processes. Its market price can diverge from the value of the underlying asset it represents. Exiting through the protocol may involve a waiting period.How Do You Stake Crypto and Calculate Returns?How you stake crypto depends on the network’s design and your chosen service. However, asset selection, cost assessment, and transaction verification are common steps. Understanding the exit conditions before starting is also important.Steps to Start StakingFirst, confirm which network supports staking for your asset. Versions of the same token on different networks may not offer identical staking opportunities. Make sure your wallet and service support the correct network.Next, compare solo staking, delegation, pools, and centralized platforms. Check the minimum participation amount and who will retain control of the assets. If you are choosing a validator, review its commissions and historical performance.Open the staking section through the wallet’s or platform’s official interface. Select the asset, network, and amount, then read the transaction details. When using a wallet, also set aside enough funds to cover network fees.After approval, check that the transaction has completed and your staking position is active. Some networks do not start awarding rewards immediately. Activation times or reward cycles may require you to wait.Finally, learn how the service distributes rewards. Some services reinvest rewards automatically, while others require a separate user action. This difference can affect costs and compounding.The Difference Between APR and APYYou may encounter APR and APY in staking interfaces. APR shows an annualized rate that excludes compounding. APY accounts for the compound effect of reinvesting rewards.For example, assume a constant 5% APR on 1,000 tokens. After one year, this would produce approximately 50 tokens in rewards before commissions. This example assumes uninterrupted participation and no reinvestment of rewards.Restaking rewards can increase the balance that earns rewards in subsequent periods. However, transaction fees can reduce this advantage for smaller amounts. The network’s reward rate may also change throughout the year.Check whether the displayed rate is gross or net. Validator commissions, platform fees, and network costs affect the final result. Use the same calculation method when comparing different products.Token Returns Versus Monetary ReturnsStaking rewards can increase the number of tokens you hold. However, more tokens do not automatically mean a higher monetary value. Price changes directly affect your overall crypto earnings.For example, assume you initially hold 1,000 tokens worth $10 each. Your balance reaches 1,050 tokens after earning a 5% token reward over a year. If the token price falls to $8, your total holdings will be worth $8,400.In this scenario, the initial $10,000 value declines despite the increase in token holdings. The example excludes fees and taxes. However, it illustrates the distinction between staking rewards and returns from price movements.Growth in the token supply should also be part of the assessment. High reward rates can coincide with high token inflation. Focusing only on the number of tokens you will earn can therefore be misleading.Staking Benefits and Staking RisksStaking combines network participation with the opportunity to earn rewards. However, the chosen method changes the type and extent of risk. When evaluating the benefits, consider access to your assets and potential losses as well.What Are the Benefits of Staking?Staking can provide an opportunity to earn additional tokens while holding supported assets. Users who plan to hold assets for an extended period can earn rewards by participating in network operations. However, these rewards are neither fixed nor guaranteed.Delegation and pools can reduce the technical burden of participation. Where supported, users can participate without running their own validators. This creates options for different budgets and levels of experience.Staking also contributes economic resources to the network’s security mechanism. A balanced distribution of stake across independent validators can help reduce concentration. Users should therefore consider diversity when selecting validators.Liquid staking can offer additional flexibility in how assets are used. However, that flexibility also brings smart contract and market risks.Price, Liquidity, and Validator RisksPrice fluctuations continue while assets are staked. A decline in token value can outweigh the monetary value of earned rewards. Staking does not eliminate the underlying asset’s market risk.On networks with lockups or exit periods, you may not have immediate access to your assets. Activation, exit queues, and provider processing times can form separate stages. These waiting periods become particularly relevant during rapid market changes.Validator performance also affects rewards. Connectivity problems or missed duties can cause lost rewards and protocol-specific penalties. However, not every interruption results in the same penalty.Slashing refers to a reduction in staked assets for certain protocol violations. On Ethereum, ordinary downtime penalties differ from slashing. Whether delegators share in a loss depends on the network’s and service’s rules.Platform and Smart Contract RisksCentralized services carry custody and counterparty risks. A platform hack, shutdown, or withdrawal restriction can affect your access to assets. A platform’s size alone should therefore not serve as a measure of safety.Software vulnerabilities matter in pooled and liquid staking protocols. Smart contract audits can help assess risks. However, an audit report does not guarantee that a system will never experience problems.Non-custodial solutions can reduce certain custody risks. In return, users become responsible for protecting their private keys and recovery information. Approving the wrong transaction or falling for phishing can still lead to losses.Tax treatment and legal obligations also vary by country. Receiving rewards and later disposing of them can have different consequences. Keep records and check current local requirements.Frequently Asked Questions (FAQ)Below are brief answers to common questions about staking:What is staking income? Staking income refers to rewards earned through participation in a network’s validation mechanism. Rewards usually take the form of crypto assets. Their amount depends on network rules, participation duration, validator performance, and commissions.Can every cryptocurrency be staked? Not every cryptocurrency supports PoS staking on its native network. Bitcoin’s base network uses Proof of Work. Products marketed as Bitcoin staking may involve separate protocols and additional risks.Do you need a large amount of crypto to start staking? The required amount depends on your chosen network and participation method. Running a solo validator may require a higher minimum. Delegation and pools can allow participation with smaller amounts.Can I withdraw my staked crypto whenever I want? This depends on the network’s and service provider’s rules. Some models allow unrestricted asset transfers, while others impose an exit period. Selling a liquid staking token on the market also depends on liquidity and market prices.Which platform is best for staking? No single platform is the best choice for every user. Compare supported networks, fees, custody models, and exit conditions. Transparency and historical performance matter, but neither guarantees safety.Is staking safe, and is income guaranteed? Staking does not provide fixed or guaranteed income. Price movements, validator performance, software issues, and provider conditions affect the outcome. Assess the risks of both the network and your chosen product before participating.Continue exploring the world of staking with JrKripto guides.
A crypto wallet is a digital tool used to manage cryptocurrencies. Unlike a physical wallet, it doesn't store money; instead, it manages public and private keys that provide access to records of your crypto assets on the blockchain. The public key functions as a shareable address, similar to a bank account number, through which cryptocurrencies can be sent to your wallet. The private key, on the other hand, acts as an account password and must be kept secret as it represents all authority over the assets. The concept of a crypto wallet is metaphorical in this respect; the wallet itself doesn't hold the cryptocurrency, it displays balances on the blockchain and ensures transactions are securely signed. The person holding the private key is considered the true owner of the relevant crypto asset, and transactions are only carried out using this key. Crypto Wallet Basic ConceptsWhat is a Crypto Wallet?A crypto wallet is a software or physical device that manages the public and private keys of your cryptocurrency accounts. Hardware wallets function as physical devices that store private keys offline, while software wallets are used as mobile applications or computer programs. The primary function of these wallets is not to directly store cryptocurrencies, but to securely manage your balances on the blockchain. In other words, your crypto wallet doesn't hold digital assets; it accesses the public ledger on the blockchain to view the assets in your account and allows you to transact with those assets.Private and Public Key RelationshipThe working principle of crypto wallets is based on cryptography. Every crypto wallet contains a public key and a private key associated with it. The public key is like the public identity of your account; the address derived from this key is shared so that others can send you cryptocurrency. The private key, on the other hand, is a secret code that provides control of the account and represents all authority over the assets.During a cryptocurrency sending transaction, the wallet digitally signs the transaction with the private key on your behalf. This signature proves that the transaction truly belongs to you and allows it to be transmitted to the blockchain network. Therefore, the person holding the private key is considered the true owner of the relevant crypto asset. The security of crypto transactions is ensured precisely by this public and private key structure; as long as you have the private key, you also have control over the assets in your wallet. How Do Crypto Wallets Work?Crypto wallets function as digital interfaces that directly interact with the blockchain. When you initiate a cryptocurrency sending transaction, the process follows specific steps. First, the recipient's wallet address is entered, then the amount to be sent and the network fee are selected. Based on this information, the wallet creates a digital transaction request by signing the transaction with your private key.The signed transaction is sent to the blockchain network and checked by miners or validators on the network. After passing the verification process, the transaction is added to a block, and a specific transaction fee is charged. Depending on network congestion, the transaction time can take several minutes and usually requires multiple confirmations.In the process of receiving cryptocurrency, your wallet generates an address that you can share. Other people use this address to send you cryptocurrency. At this point, the wallet tracks incoming transactions and updates your balance on the blockchain. In short, crypto wallets manage the process of initiating, signing, and verifying transactions; cryptocurrencies, however, do not physically exist in the wallet but exist as records on the blockchain. The process generally works as follows:Receiving money: You create a new address through your wallet. This address is derived from your public key and shared with those who want to send you cryptocurrency.Sending money: The recipient's wallet address and the amount to be sent are entered. The wallet signs this transaction with your private key and transmits it to the blockchain network. A certain transaction fee is charged as the transaction is processed by miners or validators on the network.Storage: Cryptocurrencies are not physically stored inside the wallet; all balances are recorded on the blockchain. Your wallet allows you to interact with the blockchain by securely protecting your private keys. What are the Types of Crypto Wallets?Hot and Cold WalletsCrypto wallets are generally divided into two main groups: hot and cold. Hot wallets are wallets that operate connected to the internet; mobile applications, web-based wallets, and desktop software fall into this category. Thanks to the internet connection, they offer fast and practical use, making them suitable for daily transactions. However, being online makes these wallets more vulnerable to cyberattacks. Therefore, it is generally not recommended to keep high-value crypto assets in hot wallets for a long time. Cold wallets, on the other hand, are not connected to the internet, fully offline storage solutions. Because private keys are stored offline, they provide much higher protection against hacker attacks. Thanks to these features, they are preferred for securely storing large amounts of crypto assets. For users making long-term investments, cold wallets stand out as an option where security is prioritized.In practice, many users use a hot wallet for daily buying, selling, and transfer transactions, while they utilize cold wallets to protect their long-term savings. This approach offers a balanced solution between ease of use and security.Types of Hot WalletsThere are several different types of hot wallets:Desktop wallets: These are software installed on a computer. They store private keys on the user's computer. They are offline software, but require internet for transactions.Web wallets: These are wallets accessed via an internet browser or the cloud. They are usually offered by third-party services. You only need to log in to access your wallet, but the private keys are usually held by the provider.Mobile wallets: These are smartphone applications. They offer portability and make sending and receiving crypto easy with features such as QR code reading. For security, you can use device locks or biometric features.Types of Cold WalletsThere are two popular types of cold wallets:Paper wallets: This is the simplest cold storage method, created by printing or typing your private keys and their associated address onto paper. Because it is completely offline, it cannot be hacked; however, care must be taken to prevent the paper from being lost or damaged.Hardware wallets: These are usually physical devices similar to USBs. Private keys are securely stored inside these devices and remain offline unless the device is connected to the internet. When you make a transaction, it only becomes online with confirmation from the device's screen. The device is protected with a PIN; it also has a 12-24 word recovery seed phrase to recreate your wallet. If you lose your device, access can be restored on a new device with the seed phrase. Hardware wallets are generally considered one of the most secure storage methods because they do not expose private keys to online risk.Hardware wallets are physical devices that keep private keys offline. These devices, protected by a PIN and seed phrase, allow you to securely store your crypto assets. Custodial and Non-Custodial WalletsAnother important distinction is made between custodial and non-custodial crypto wallets. In non-custodial wallets, private keys are entirely under the user's control. In this model, the wallet password, recovery phrases, and access information are managed solely by the user; the wallet provider has no access to the private keys whatsoever. While it doesn't offer conveniences like password reset or customer support, there is no risk of being affected by a third-party security breach.In custodial wallets, private keys are stored by an exchange or service provider. This structure simplifies the user experience; it provides advantages such as password reset, account recovery, and customer service. However, the fact that the private keys are not in the user's possession creates additional security risks. A cyberattack, technical problem, or bankruptcy in the provider's infrastructure could jeopardize access to assets. We can summarize this distinction as follows: Non-custodial wallets are preferred by users who want complete control over their assets, while custodial wallets may be a more suitable option for those who prioritize ease of use and support services.What to Consider When Choosing a Crypto Wallet?Security always comes first when choosing a crypto wallet. The encryption methods used by the wallet, how private keys are stored, and additional security features such as PIN or two-factor authentication (2FA) must be evaluated. In addition, the cryptocurrencies supported by the wallet are also an important criterion in the selection process. Most wallets support Bitcoin and Ethereum; however, if you plan to use different altcoins or tokens, you need to choose a wallet compatible with those assets.Ease of use and user interface should also not be overlooked. A clear and simple interface provides a great advantage, especially for new users. In addition, the wallet's development team and community support are important for long-term reliability. In open-source wallets supported by a large user community, potential errors can be detected and fixed more quickly. Regular updates and compatibility with different devices and operating systems are other technical aspects to consider. Critical elements can be listed as follows:Security priority: Choose wallets with features like strong encryption, private key control, and multi-factor authentication. Hardware wallets excel in this regard.Supported assets: Choose a wallet that supports all the cryptocurrencies and tokens you plan to use.Ease of use and interface: The wallet's interface should be clean and understandable; if there's a mobile or web version, the user experience should be good.Developer/community support: Wallets with an active development team and a large user community find solutions to security vulnerabilities faster. Open-source projects are open to scrutiny and are preferable.Updates: Pay attention to whether the wallet software receives regular updates. A continuous development process that closes security vulnerabilities is important.Important Tips for Crypto Wallet SecurityUse strong passwords: Set a unique and difficult-to-guess wallet password and change it regularly. Store your passwords in a secure password manager.Two-factor authentication (2FA): Enable 2FA for wallet logins if possible. This is an effective method that prevents an attacker from accessing the account even if they know your password.Diversify your assets: Don't keep all your cryptocurrencies in a single wallet. It's wise to use a hot wallet for daily transactions and a different cold wallet for long-term storage. This way, if one wallet is compromised, you won't lose all your assets.Beware of phishing attacks: Be suspicious of anyone who asks for your private key or password via email, SMS, or social media. Even an official institution wouldn't ask for your private key; immediately reject such requests. Never share your private key with anyone.Always check addresses: Double-verify the recipient's address when sending cryptocurrency. Malware can alter the address during cut-and-paste. Make sure the address on the screen is correct before confirming the transaction.Software and device updates: Keep your wallet app and your device's operating system up to date. Installing security patches in a timely manner closes new vulnerabilities. Turning on automatic updates is good practice.Use a secure network: Avoid using insecure networks such as public Wi-Fi. If you need to connect to your wallet or exchanges, encrypt your connection with a VPN if possible.Check your accounts regularly: Frequently review your wallet balance and transaction history. Immediately intervene if you notice any suspicious activity (e.g., change your password, report it to your wallet provider).Recovery Phrases and Application Permissions in Crypto WalletsMany crypto wallets provide a recovery phrase during setup. This sequence of words lets you regain access to your wallet if you lose your device or delete the app. Your wallet password usually unlocks the app on that particular device. Changing your password therefore does not change your recovery phrase.Someone who knows your recovery phrase can restore your wallet in a compatible app. They may not need your phone, hardware wallet, or app password to do so.Write down the words in the correct order and keep them somewhere secure, beyond other people’s reach. Taking a screenshot or uploading the phrase to the cloud can expose your backup to online attacks. Protect your physical backup against fire, water damage, and loss as well. If your wallet offers an official backup verification feature, use it to check that you recorded everything correctly.Do not trust support messages or verification links that ask for your recovery phrase. A support representative does not need these words to resolve your issue. Backup methods may vary depending on the wallet’s design. During setup, read your wallet’s official recovery instructions and understand your responsibility for maintaining access.Permissions Granted to Decentralized ApplicationsYour wallet may display different approval requests when you interact with decentralized applications. Connecting to a website, granting token spending permission, and signing a transfer are separate actions. For example, a swap application may request permission to spend a particular token. This permission allows the relevant smart contract to move your tokens within the limit you set.If you grant unlimited permission, your exposure may extend beyond the amount you intend to swap. Check the token, spending limit, and contract receiving permission on the approval screen. Whenever possible, limit spending permission to the amount you need. Do not approve a request from an unfamiliar application simply to speed up the process.Disconnecting your wallet from a website does not automatically revoke previously granted token permissions. Review permissions for applications you no longer use and revoke them when necessary. Revoking permission usually requires an on-chain transaction and may incur a network fee. Make sure you review permissions on the network where you granted them. Read approval screens carefully when using a hardware wallet, too. Keeping your private key on the device does not guarantee that every transaction you approve is safe.Check the transaction details displayed by your device and reject requests you do not understand. If you encounter an unexpected spending approval request, stop the process and review the application’s official documentation.Frequently Asked Questions (FAQ)In this section, you can find short and clear answers to the most frequently asked questions about crypto wallets.Where exactly are the cryptocurrencies I store in my crypto wallet?: Cryptocurrencies are not actually inside the wallet, but are recorded on the distributed ledger on the blockchain. Your wallet acts as an interface that allows you to view these balances and sign transactions. So your assets reside on the blockchain; the wallet only provides access.If I lose my crypto wallet, can I regain access to my assets?: This depends on the type of wallet and whether you have made a backup. If a non-custodial wallet has a recovery phrase, you can restore your wallet on a new device. However, if the private keys are completely lost, it will not be possible to regain access to the assets. Which type of crypto wallet is more suitable for beginners?: For beginners, easy-to-use hot wallets and exchange wallets are generally more suitable. Thanks to their custodial structures, they offer advantages such as password recovery and support. As experience increases, you can switch to more secure solutions.Why is using a cold wallet considered safer?: Cold wallets are protected against remote attacks because they are not connected to the internet. Since private keys are kept offline, the risk of malware and phishing is reduced. Therefore, they are preferred for long-term storage of large amounts.Is it safe to share my crypto wallet address with others?: Yes, the wallet address is publicly available information and is only used to buy crypto. Sharing this address does not put your assets at risk. However, the private key should absolutely not be shared.Which features should I prioritize when choosing a crypto wallet?: First of all, security features, private key control, and 2FA support should be considered. Also, supported cryptocurrencies and ease of use are important. Wallets that are regularly updated and have strong community support are considered more reliable.
