$BTC Bitcoin is a decentralized digital currency that uses cryptography to secure transactions and control the supply of new coins. It operates on a peer-to-peer network, where every transaction is recorded on a public ledger called the blockchain. As the first digital currency to enable direct transfers of value without intermediaries, Bitcoin has pioneered a new approach to money. Today, it functions as both a medium of exchange and a store of value, influencing global finance and inspiring many other digital currencies.