$BTC Bitcoin (BTC) is the world’s first decentralized digital currency, created in 2009 by an unknown person or group using the name Satoshi Nakamoto. It operates on a peer-to-peer network using blockchain technology, allowing users to send and receive payments without relying on banks or intermediaries. Bitcoin is limited to 21 million coins, making it scarce and often compared to digital gold. It's used for investment, online payments, and as a store of value. As the most recognized cryptocurrency, Bitcoin has sparked a global movement toward decentralized finance, transforming how people view and use money in the digital age.