Blockchain

A blockchain is a decentralized, peer-to-peer (P2P) network of computers that maintains and verifies a public ledger of transactions. Through a consensus mechanism, this network validates data and ensures its integrity. In a blockchain, each computer stores its own copy of the shared record, creating a high level of resistance against tampering with past transactions or attempting to manipulate the network. By eliminating the reliance on centralized authorities or intermediaries, decentralized blockchains enable secure, verifiable, and fast global transactions, empowering the growth of technologies such as cryptocurrencies.