$BTC Bitcoin (BTC) is a decentralized digital currency, created in 2009 by an anonymous entity known as Satoshi Nakamoto. It operates on a peer-to-peer network, using blockchain technology to securely record transactions. Bitcoin transactions are verified by network nodes through cryptography and recorded on the public ledger, ensuring transparency and security. Unlike traditional currencies, BTC is not controlled by any government or financial institution. Its limited supply, capped at 21 million coins, has made it a popular asset for investment. Bitcoin is used for online purchases, as a store of value, and as a hedge against inflation.