Blockchain is a decentralized digital ledger that records transactions across a peer-to-peer network. It allows direct connections between consumers and suppliers without a trusted middleman. Transactions are recorded cryptographically and distributed across the network, requiring consensus to be verified before being recorded in the ledger. This prevents the same transactions from being spent twice. Blockchain has potential applications beyond digital currencies, including exchanging money, goods, and property, reducing fraud and inefficiencies in financial transactions.
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