Crypto Terms:
Letter B
What is Block?
Meaning:
Block -
a structural unit of a blockchain that contains information about a transaction.
Let's find out Block meaning, definition in crypto, what is Block, and all other detailed facts.
A block is the most essential feature of a blockchain. New blocks are added to the end of the chain in sequential order. The blocks contain hashes that act as references to the previous block in the chain. The first block in a blockchain is called the genesis block.
Hashes act as a blockchain security feature. It is practically impossible to falsify the data recorded on the blockchain because it cannot be altered. Since each block holds a reference to the previous block, every single block would have to be altered to successfully falsify information.
Any attempts to alter the information contained in a block are further complicated because blockchains are decentralized by design. This means that the blocks are not stored in a single location. Instead, the computer of each blockchain user acts as an individual node of the overall network.
The core information stored in a block is the transaction record, a timestamp, the hash, and an answer to a cryptographic puzzle. In order to add a new block to the chain, the puzzle must be solved first.
The process of solving the block puzzle is referred to as mining. Mining a block typically grants the solver a reward. A typical example of a reward is miners receiving Bitcoin (BTC) for solving a block on the Bitcoin blockchain. The transaction information and the addresses that claim the reward are the first data recorded in a new block.
On the Bitcoin blockchain, the difficulty of solving each block puzzle is not even across the board. Every 2016 blocks, the network consensus adjusts the difficulty. It changes on a sliding scale, becoming either more or less complicated, to keep the mining system fair.
Ethereum/strong>/a> and <a href=https://www.bitdegree.org/"//crypto//buy-bitcoin-btc/">Bitcoin/strong>/a> by using one explorer, since each blockchain needs a separate one.<\/p>\n<p>Block explorers are considered to be a valuable tool for making cryptocurrencies <strong>coherent and decentralized.<\/strong> It’s because it assists in making all transaction information visible.<\/p>\n<p>Because of its potential value, the search software is advantageous to <strong><a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-miner/">miners/a>, validators, and enterprises<\/strong>. When purchasing or selling cryptocurrency, the explorer may be used to verify the status of transactions.<\/p>\n<p>Additionally, it’s a great tool for miners for checking if they’ve successfully mined a block.<\/p>\n<p>The information that users get includes the <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-block-header/">block height<\/strong><\/a>, the block reward, the age of the block, the TX indicating the number of transactions in the block, the user's identity, and the status.<\/p>\n<p>To utilize a block explorer to look for information about a specific block, enter <strong>the transaction hash or ID <\/strong>into the search field. The explorer will next determine whether or not your transaction has been verified.<\/p>","definition":"is a blockchain search program that uses an internet interface to provide users with information on addresses, payments, blocks, and fees.","status":"published","meta_title":"What is Block Explorer? Definition & Meaning | Crypto Wiki","meta_description":"Block Explorer meaning: Block Explorer - is a blockchain search program that uses an internet interface to provide users with information on addresses, payments, blocks, and fees.","meta_keywords":null}"
:prev-section="{"id":842,"wikipedia_url":"https:\/\/en.wikipedia.org\/wiki\/BLAKE_(hash_function)","level":"medium","author_id":1,"created_at":"2023-06-19T06:59:00.000000Z","updated_at":"2024-01-01T08:23:40.000000Z","slug":"what-is-blake-256","title":"What is Blake-256?","section":"B","keyword":"Blake-256","content":"<p><strong>Blake-256<\/strong> is a <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-hash-function/">hash algorithm<\/strong><\/a> that was created by Jean-Philippe Aumasson, Luca Henzen, Willi Meier, and <strong>Raphael C.-W. Phan<\/strong> and is used in Decred. The Blake-256 algorithm was designed to run as fast as <a href=https://www.bitdegree.org/"https:////en.wikipedia.org//wiki//SHA-1/strong>/" target=\"_blank\" rel=\"nofollow noindex noopener\"><strong>SHA-1<\/strong><\/a> on 64-bit processors and <a href=https://www.bitdegree.org/"https:////en.wikipedia.org//wiki//MD5/strong>/" target=\"_blank\" rel=\"nofollow noindex noopener\"><strong>MD5<\/strong><\/a> on 32-bit processors. Blake is based on a variant of the <a href=https://www.bitdegree.org/"https:////en.wikipedia.org//wiki//Salsa20/" target=\"_blank\" rel=\"nofollow noindex noopener\"><strong>Salsa20 stream cipher<\/strong><\/a> called <strong>ChaCha<\/strong>. However, Blake’s internal state (1600 bits) is larger than Salsa20’s (256 bits).<\/p>\n<p>The way that Blake works can be described in steps:<\/p>\n<ul>\n<li>The <strong>message<\/strong> is initially divided into <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-block/">blocks/strong>/a>, each of which is hashed separately (the last block is padded to a full block length).<\/li>\n<li>Each block is passed through a 512-bit internal state that is operated by an internal compression function (32 rows and 16 columns).<\/li>\n<li><a href=https://www.bitdegree.org/"https:////en.wikipedia.org//wiki//XOR/strong>_gate/" target=\"_blank\" rel=\"nofollow noindex noopener\"><strong>XOR<\/strong><\/a> is used to combine the output of the compression function with the starting state, and then a linear transformation is used to permute it.<\/li>\n<li>After that, the final state is split into two 512-bit halves and <strong>XORed together to create the final version<\/strong>.<\/li>\n<\/ul>\n<p>A great technique of decreasing a hash value is to XOR it with a constant value, which on some architectures can result in <strong>more efficient computing<\/strong>. This notion is heavily used in the Blake-256 hashing method. Besides, this does not result in a major decrease in security, and it does speed up the algorithm's processing time.<\/p>\n<p>The Blake hashing algorithm creates two distinct hash functions that are combined to create a 512-bit hash value (64 bytes).<\/p>\n<p>Blake is an <strong>iterative hash function<\/strong> that increases security against collisions and preimage attacks by using randomization. Though it uses the same amount of resources as <a href=https://www.bitdegree.org/"https:////en.wikipedia.org//wiki//SHA-2/" target=\"_blank\" rel=\"nofollow noindex noopener\"><strong>SHA-2 <\/strong><\/a>(but a smaller amount than MD5) to do that.<\/p>\n<p>The <strong>main features of Blake<\/strong> include:<\/p>\n<ul>\n<li>Fast Hashing. Blake is definitely one of the fastest cryptographic hash functions there is. In terms of speed, it even surpasses <a href=https://www.bitdegree.org/"https:////en.wikipedia.org//wiki//Whirlpool/strong>_Corporation/" target=\"_blank\" rel=\"nofollow noindex noopener\"><strong>Whirlpool<\/strong><\/a>, which is the most widely used cryptographic hash function in the industry.<\/li>\n<li>Stream Cipher. This feature enables a program to <strong>hash any quantity of data without having to wait for all of it to be read<\/strong>. Besides, it enables the usage of such applications as file hashing utilities.<\/li>\n<li>Security. Since it has a larger internal state (1024 bits) it is definitely more secure than SHA-2, which has <strong>a half smaller internal state (512 bits)<\/strong>.<\/li>\n<\/ul>","definition":"a hash algorithm used in Decred.","status":"published","meta_title":"What is Blake-256? Definition & Meaning | Crypto Wiki","meta_description":"Blake-256 meaning: Blake-256 - a hash algorithm used in Decred.","meta_keywords":null}"
:model="{"id":103,"wikipedia_url":"https:\/\/en.wikipedia.org\/wiki\/Blockchain","level":"easy","author_id":1,"created_at":"2023-06-19T06:58:59.000000Z","updated_at":"2023-11-02T10:42:47.000000Z","slug":"what-is-block","title":"What is Block?","section":"B","keyword":"Block","content":"<p><strong>A block is the most essential feature of a blockchain.<\/strong> New blocks are added to the end of the chain in sequential order. The blocks contain <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-hash/">hashes/strong>/a> that act as references to the previous block in the chain. The first block in a blockchain is called the <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-genesis-block/">genesis block<\/strong><\/a>.<\/p>\n<p>Hashes act as a blockchain security feature. It is practically impossible to falsify the data recorded on the blockchain because it cannot be altered. Since <strong>each block holds a reference to the previous block<\/strong>, every single block would have to be altered to successfully falsify information.<\/p>\n<p>Any attempts to alter the information contained in a block are further complicated because blockchains are decentralized by design. This means that the <strong>blocks are not stored in a single location<\/strong>. Instead, the computer of each blockchain user acts as an individual <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-node/">node/strong>/a> of the overall network.<\/p>\n<p>The core information stored in a block is the transaction record, a timestamp, the hash, and an answer to a cryptographic puzzle. In order to add a new block to the chain, the puzzle must be solved first.<\/p>\n<p>The process of solving the block puzzle is referred to as <a href=https://www.bitdegree.org/"//crypto//learn//crypto-terms//what-is-mining/">mining/strong>/a>. <strong>Mining a block typically grants the solver a reward<\/strong>. A typical example of a reward is miners receiving <a href=https://www.bitdegree.org/"https:////www.bitdegree.org//crypto//buy-bitcoin-btc/">Bitcoin (BTC)<\/strong><\/strong><\/a> for solving a block on the Bitcoin blockchain. The transaction information and the addresses that claim the reward are the first data recorded in a new block.<\/p>\n<p>On the Bitcoin blockchain, the difficulty of solving each block puzzle is not even across the board. Every 2016 blocks, the network consensus adjusts the difficulty. It changes on a sliding scale, becoming either more or less complicated, to keep the mining system fair.<\/p>\n<p> <\/p>","definition":"a structural unit of a blockchain that contains information about a transaction.","status":"published","meta_title":"What is Block? Definition & Meaning | Crypto Wiki","meta_description":"Block meaning: Block - the structural unit of a blockchain. A file that contains information about a transaction.","meta_keywords":null,"author":{"id":1,"user_id":1,"created_at":"2023-05-03T14:30:55.000000Z","updated_at":"2023-05-11T07:18:20.000000Z","title":"Editor-In-Chief","slug":"aaron-s-editor-in-chief","description":"<p>Having completed a Master’s degree on Economics, Politics & Culture for the East Asia region, Aaron has written scientific papers with a comparative analysis of the differences between US’ Western and Japan’s Collective forms of capitalism, 1945-2020.<\/p>\n<p>With close to a decade of experience in the FinTech industry, Aaron understands all of the biggest issues and struggles that crypto enthusiasts face. He’s a passionate analyst who is concerned with data-driven and fact-based content, as well as that which speaks to both Web3 natives and industry newcomers.<\/p>\n<p>Aaron is the go-to person for everything and anything related to digital currencies. With a huge passion for blockchain & Web3 education, Aaron strives to transform the space as we know it, and make it more approachable to complete beginners.<\/p>\n<p>Aaron has been quoted by multiple established outlets, and is a published author himself. Even during his free time, he enjoys researching the market trends, and looking for the next supernova.<\/p>","user":{"id":1,"first_name":"Aaron","last_name":"S.","email":"aaron@bitdegree.org","email_sanitized":"aaron@bitdegree.org","email_verified_at":"2023-12-01T09:40:20.000000Z","must_verify_email":false,"is_registered_with_wallet":false,"status":"active","country":"LT","last_connected_ip":"88.119.132.125","image_id":2641,"referral_token":"05TMu2NysXOCn525","referred_by":null,"created_at":"2023-05-03T14:30:55.000000Z","updated_at":"2024-01-09T15:22:21.000000Z","full_name":"Aaron S."}}}"
:chapter-list="[{"id":1,"title":"Blockchain","slug":"blockchain","updated":null,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-blockchain.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/blockchain-101.jpg","rating":100,"sections":[{"chapter_id":1,"order":1,"slug":"what-is-blockchain","title":"What is the Blockchain?","status":"published","modified_content":null},{"chapter_id":1,"order":2,"slug":"decentralized-blockchain","title":"Anonymous & Decentralized Blockchains: The Cornerstone of Crypto","status":"published","modified_content":null},{"chapter_id":1,"order":3,"slug":"blockchain-transaction","title":"What is a Blockchain Transaction in Crypto?","status":"published","modified_content":null},{"chapter_id":1,"order":4,"slug":"crypto-fees","title":"The Different Types of Crypto Fees Explained","status":"published","modified_content":null},{"chapter_id":1,"order":5,"slug":"what-is-bridging-in-crypto","title":"The Key Notion Behind the Concept of Bridging in Crypto","status":"published","modified_content":null},{"chapter_id":1,"order":6,"slug":"types-of-blockchains","title":"Different Types of Blockchains: What to Look Out For?","status":"published","modified_content":null}]},{"id":2,"title":"Cryptocurrencies","slug":"cryptocurrencies","updated":null,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-cryptocurrencies.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/cryptocurrencies-101.jpg","rating":100,"sections":[{"chapter_id":2,"order":1,"slug":"what-is-a-cryptocurrency","title":"What is a Cryptocurrency?","status":"published","modified_content":null},{"chapter_id":2,"order":2,"slug":"how-does-cryptocurrency-work","title":"How Does Cryptocurrency Work?","status":"published","modified_content":null},{"chapter_id":2,"order":3,"slug":"is-cryptocurrency-a-good-investment","title":"Is Cryptocurrency a Good Investment? The Pros & Cons","status":"published","modified_content":null},{"chapter_id":2,"order":4,"slug":"coin-vs-token","title":"Coin VS Token: How Do They Differ?","status":"published","modified_content":null},{"chapter_id":2,"order":5,"slug":"what-are-stablecoins","title":"What are Stablecoins, Altcoins & Wrapped Coins?","status":"published","modified_content":null},{"chapter_id":2,"order":6,"slug":"what-is-a-bitcoin","title":"Bitcoin: the Pioneer of the Crypto World","status":"published","modified_content":null},{"chapter_id":2,"order":7,"slug":"what-is-ethereum","title":"The Ultimate Blockchain for dApp Creation: Ethereum","status":"published","modified_content":null},{"chapter_id":2,"order":8,"slug":"what-is-cardano-in-crypto","title":"What is Cardano and What is It Used For?","status":"published","modified_content":null},{"chapter_id":2,"order":9,"slug":"what-is-shiba-inu-coin","title":"Shiba Inu: the Dogecoin 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Wallet?","status":"published","modified_content":null},{"chapter_id":4,"order":2,"slug":"hot-wallet-vs-cold-wallet","title":"Hot Wallet VS Cold Wallet: Which One to Pick?","status":"published","modified_content":null},{"chapter_id":4,"order":3,"slug":"non-custodial-wallet","title":"What are Non-Custodial Crypto Wallets?","status":"published","modified_content":null},{"chapter_id":4,"order":4,"slug":"what-is-metamask","title":"Metamask: The Leading Non-Custodial Wallet","status":"published","modified_content":null},{"chapter_id":4,"order":37,"slug":"how-safe-is-cryptocurrency","title":"The Key Crypto Wallet Safety Practices: How Safe Can Crypto Be?","status":"published","modified_content":null}]},{"id":5,"title":"NFTs","slug":"nfts","updated":null,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-nfts.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/nfts-101.jpg","rating":100,"sections":[{"chapter_id":5,"order":2,"slug":"how-to-trade-nfts","title":"NFT Trading: The Ins and Outs","status":"published","modified_content":null},{"chapter_id":5,"order":3,"slug":"buying-nft","title":"Tips and Tricks of Choosing the Right NFTs","status":"published","modified_content":null},{"chapter_id":5,"order":4,"slug":"how-to-store-nft","title":"How to Store NFTs: Best Practices","status":"published","modified_content":null},{"chapter_id":5,"order":5,"slug":"how-to-create-an-nft","title":"How to Create Your Own NFTs?","status":"published","modified_content":null},{"chapter_id":5,"order":6,"slug":"how-to-make-passive-money-with-nft","title":"Making Passive Money with NFTs","status":"published","modified_content":null}]},{"id":6,"title":"dApps & Defi","slug":"dapps-and-defi","updated":true,"chapter":"crypto\/assets\/crypto-book\/chapters\/learn-dapps.jpg","chapter_simple":"crypto\/assets\/crypto-book\/chapters-simple\/dapps-defi-101.jpg","rating":80,"sections":[{"chapter_id":6,"order":1,"slug":"what-are-nfts","title":"What are Non-Fungible Tokens 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Cryptocurrencies?","status":"published","modified_content":null},{"chapter_id":7,"order":2,"slug":"how-to-invest-in-crypto","title":"Investing in Crypto: What Investing Options Do You Have?","status":"published","modified_content":null},{"chapter_id":7,"order":3,"slug":"ico-vs-ido","title":"ICO vs IDO vs IEO: Which One is the One?","status":"published","modified_content":null},{"chapter_id":7,"order":4,"slug":"what-is-an-airdrop","title":"What are Crypto Airdrops and How to Get Them?","status":"published","modified_content":null},{"chapter_id":7,"order":5,"slug":"how-to-get-free-crypto","title":"How to Get Free Crypto Assets?","status":"published","modified_content":null},{"chapter_id":7,"order":6,"slug":"how-to-arbitrage-crypto","title":"What is Crypto Arbitrage: The Main Principles","status":"published","modified_content":null},{"chapter_id":7,"order":7,"slug":"what-is-a-perpetual-contract","title":"Perpetual Contracts: Futures Contracts Without an Expiration Date","status":"published","modified_content":null},{"chapter_id":7,"order":8,"slug":"what-is-fud","title":"What is FUD: How to Use It to Your Advantage While Investing in Crypto?","status":"published","modified_content":null},{"chapter_id":7,"order":9,"slug":"investing-in-cryptocurrency","title":"Investing in Cryptocurrency: How to Manage Your Risks?","status":"published","modified_content":null},{"chapter_id":7,"order":10,"slug":"what-is-a-rug-pull-in-crypto","title":"What is a Rug Pull in Crypto?","status":"published","modified_content":null},{"chapter_id":7,"order":11,"slug":"how-to-avoid-rug-pulls-in-crypto","title":"How to Spot and Avoid Rug Pulls?","status":"published","modified_content":null},{"chapter_id":7,"order":12,"slug":"how-to-avoid-crypto-taxes","title":"The Key Legal Techniques of Avoiding Crypto Taxes","status":"published","modified_content":null}]},{"id":8,"title":"Crypto 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current-chapter="B"
current-section="what-is-block">