Question

what's block chain

Answer 1

Blockchain is a decentralized, distributed ledger technology that is used to create a secure and transparent record of transactions. It allows data to be stored in a growing list of records (blocks) that are linked together using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. This technology is most commonly associated with cryptocurrencies like Bitcoin, but it has many applications beyond digital currency, including supply chain management, voting systems, and smart contracts.