Blockchain is described as a publicly accessible distributed ledger, a piece of IT infrastructure that serves as a database for a continuously growing list of records called blocks.
Each block contains data (such as transaction records) and is cryptographically linked to the previous one, creating a secure, immutable information chain.
đ Why is blockchain trustworthy?
â It cannot be altered retroactively
â All transactions are transparent and publicly verifiable
đ No central authority or middleman controls it
đŠ Real-world applications:
đž Cryptocurrencies (Bitcoin, ETH...)
đ Smart contracts
đš NFTs
đ§Ÿ Decentralized identity, medical records, supply chain...
References:
https://ethereum.org/en/what-is-blockchain
https://academy.generallink.top/en/articles/what-is-blockchain
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