$BTC BTC, or Bitcoin, is the first and most well-known cryptocurrency, created by an anonymous individual or group under the pseudonym Satoshi Nakamoto in 2008. It operates on a decentralized peer-to-peer network using blockchain technology, allowing for secure and transparent transactions without the need for intermediaries like banks. Bitcoin's main use case is as a store of value and a digital currency for transactions, often referred to as "digital gold." Its limited supply (capped at 21 million coins) and decentralized nature make it resistant to inflation and government control.