[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"glossary-term-en-blockchain":3,"glossary-related-en-blockchain":38},{"term":4},{"id":5,"locale":6,"slug":7,"term":8,"h1":8,"shortDefinition":9,"simpleExplanationHtml":10,"howItWorksHtml":11,"exampleHtml":12,"contentHtml":13,"aliases":14,"abbreviations":15,"algorithms":16,"faq":17,"seoTitle":33,"seoDescription":34,"status":35,"publishedAt":36,"updatedAt":37},"9040bb75-41e2-4e69-9a0b-5a83ff81b06b","en","blockchain","Blockchain","Blockchain is a decentralized digital ledger that records transactions across a distributed network of computers. It stores data in blocks linked together in chronological order and secured using cryptography. Once recorded, information on a blockchain cannot be easily altered, making it a transparent and tamper-resistant system widely used in Bitcoin and other cryptocurrencies.","\u003Cp>Blockchain is like a shared digital notebook that is copied and stored on thousands of computers around the world. Every time a transaction happens, it gets written into this notebook. Instead of one central authority controlling it, everyone in the network has access to the same updated version.\u003C\u002Fp>\u003Cp>Each page of this notebook is called a “block,” and once a page is filled with transactions, it is locked and connected to the previous one. This creates a chain of blocks - hence the name “blockchain.”\u003C\u002Fp>\u003Cp>What makes blockchain special is that it is very hard to change past records. If someone tries to alter a transaction, they would need to change it on thousands of computers at the same time, which is practically impossible. This makes blockchain secure and trustworthy.\u003C\u002Fp>\u003Cp>In the context of Bitcoin, blockchain is the system that keeps track of all transactions ever made. It ensures that no one can spend the same Bitcoin twice and that all transfers are verified and transparent.\u003C\u002Fp>","\u003Cp>Blockchain works by combining distributed networks, cryptography, and consensus mechanisms.\u003C\u002Fp>\u003Cp>When a transaction is created, it is broadcast to the network. Miners collect multiple transactions and group them into a block. Before this block can be added to the chain, it must be verified.\u003C\u002Fp>\u003Cp>In Bitcoin, this verification is done through Proof of Work. Miners compete to solve a complex mathematical puzzle using computational power, typically through ASIC hardware. The first miner to solve the puzzle adds the new block to the blockchain.\u003C\u002Fp>\u003Cp>Each block contains:\u003C\u002Fp>\u003Cul>\u003Cli>\u003Cp>A list of transactions\u003C\u002Fp>\u003C\u002Fli>\u003Cli>\u003Cp>A timestamp\u003C\u002Fp>\u003C\u002Fli>\u003Cli>\u003Cp>A reference (hash) to the previous block\u003C\u002Fp>\u003C\u002Fli>\u003C\u002Ful>\u003Cp>This linking of blocks ensures that changing one block would require changing all subsequent blocks, which secures the system.\u003C\u002Fp>\u003Cp>Once a block is added, it becomes part of the permanent record. The miner receives a block reward and transaction fees as compensation. The network automatically adjusts mining difficulty to maintain a consistent block creation time.\u003C\u002Fp>","\u003Cp>Consider a mining pool working to validate Bitcoin transactions. Multiple miners contribute their ASIC hardware to process transactions and build candidate blocks.\u003C\u002Fp>\u003Cp>When the pool successfully mines a block, that block is added to the blockchain and becomes part of the global ledger. The reward is then distributed among participants based on their hashrate contribution.\u003C\u002Fp>\u003Cp>For example, if a mining operation contributes a higher share of computational power, it earns a larger portion of the reward. This system ensures that blockchain continues to grow securely while incentivizing miners to participate.\u003C\u002Fp>","\u003Cp>Blockchain also allows anyone to verify transactions independently. A user can check whether a payment was completed by viewing it on the public ledger, without relying on a bank or third party.\u003C\u002Fp>",[],[],[],[18,21,24,27,30],{"answer":19,"question":20},"The main purpose of blockchain is to provide a secure, transparent, and decentralized way to record transactions. It eliminates the need for intermediaries and ensures that all data is verified and immutable.\n","What is the main purpose of blockchain?",{"answer":22,"question":23},"No, blockchain technology is used in many applications beyond Bitcoin, including other cryptocurrencies, supply chain tracking, and digital identity systems. However, Bitcoin was the first and most well-known use case.\n","Is blockchain only used for Bitcoin?",{"answer":25,"question":26},"Blockchain itself is extremely difficult to hack due to its decentralized structure and cryptographic security. However, individual platforms or wallets built on top of blockchain can be vulnerable if not properly secured.\n","Can blockchain be hacked?",{"answer":28,"question":29},"Blocks are connected using cryptographic hashes. Each block contains the hash of the previous block, creating a secure chain that prevents tampering with past data.","How are blocks connected in a blockchain?",{"answer":31,"question":32},"Yes, blockchain design influences mining profitability through factors like block reward, transaction fees, and network difficulty. Changes in these elements can impact how much miners earn over time.\n","Does blockchain affect mining profitability?","Blockchain: Definition, How It Works, Mining, Examples","What is blockchain and how does it work? Learn how blocks are created, how mining secures the network, what role blockchain plays in Bitcoin.","published","2026-04-27T14:46:35.605Z","2026-04-23T13:20:03.082Z",{"items":39},[40,46,52,58,64],{"id":41,"slug":42,"term":43,"shortDefinition":44,"firstLetter":45},"8a2ed868-91fa-4a40-9273-f8a34daecabe","solo-mining","Solo Mining","Solo mining is the process of mining Bitcoin independently, without joining a mining pool. In solo mining, a miner uses their own hardware to solve cryptographic puzzles and find blocks. If the miner successfully mines a block, they receive the full block reward.","S",{"id":47,"slug":48,"term":49,"shortDefinition":50,"firstLetter":51},"0d22de23-fec1-47c8-ab6d-054e0394b911","hashrate","Hashrate","Hashrate is the measure of computational power used in blockchain mining, representing the number of hash calculations a miner or network can perform per second. In Bitcoin, hashrate determines how quickly miners can solve cryptographic puzzles, directly affecting mining efficiency, network security, and the probability of earning block rewards.","H",{"id":53,"slug":54,"term":55,"shortDefinition":56,"firstLetter":57},"242b3942-7bae-4185-8612-f585a60ae856","maintenance-fee","Maintenance Fee","The maintenance fee in Bitcoin mining refers to the cost associated with maintaining mining hardware and ensuring its continuous operation. This fee is typically charged by cloud mining providers or mining pools to cover the costs of electricity, hardware upkeep, cooling systems, and other operational expenses. The maintenance fee is usually a percentage of the mined cryptocurrency, which is deducted before payouts are made to miners.","M",{"id":59,"slug":60,"term":61,"shortDefinition":62,"firstLetter":63},"6cca5247-f8ca-4a24-9c5e-781698eb7aab","avalonminer","AvalonMiner","AvalonMiner is a series of ASIC (Application Specific Integrated Circuit) mining devices designed and manufactured by Canaan Creative. Learn more about AvalonMiners what was to built specifically for Bitcoin mining and are known for their energy efficiency, performance, and reliability. ","A",{"id":65,"slug":66,"term":67,"shortDefinition":68,"firstLetter":45},"de438f60-442b-488f-921b-5036bcd4849c","sha-256-coins","SHA-256 Coins","SHA-256 coins are cryptocurrencies that use the SHA-256 cryptographic algorithm for securing their blockchain and ensuring the integrity of transactions. SHA-256 (Secure Hash Algorithm 256-bit) is a hashing function used in the Proof of Work (PoW) consensus mechanism to validate transactions and create new blocks in a blockchain. The most famous SHA-256 coin is Bitcoin, but other coins, such as Bitcoin Cash and Bitcoin SV, also use the SHA-256 algorithm."]