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Blockchain is a decentralized digital ledger that records transactions across multiple computers in a secure and transparent way. It eliminates the need for intermediaries by using cryptography and consensus algorithms to ensure data integrity. Each block contains a list of transactions, and once added to the chain, it's nearly impossible to alter. Blockchain technology powers cryptocurrencies like Bitcoin and Ethereum but also has applications in supply chain, healthcare, voting, and more. It enhances trust, reduces fraud, and improves efficiency. As adoption grows, blockchain is set to transform how data and value are exchanged across industries worldwide.
