What is Blockchain in cryptocurrency

What is Blockchain? Blockchain is a digital ledger technology that is used to store and record transactions in a secure and verifiable manner. It is essentially a decentralized and distributed database or ledger that is maintained and updated by a network of computers. The ledger contains a complete and permanent record of all the transactions that have taken place on the network, and each transaction is verified and stored in a block with a unique identifier. Once a block is added to the chain, it cannot be altered or deleted without the consensus of the network, making it virtually tamper-proof and secure. This makes blockchain technology useful for applications that require secure and transparent record-keeping, such as financial transactions, digital identity management, supply chain management, and more.