$BTC Bitcoin (BTC) is the first and most well-known cryptocurrency, created in 2009 by an anonymous person or group using the name Satoshi Nakamoto. It operates on a decentralized, peer-to-peer network using blockchain technology to record transactions securely and transparently. Bitcoin is not controlled by any central authority, making it resistant to censorship and inflation. It has a capped supply of 21 million coins, contributing to its value proposition as "digital gold." Bitcoin can be used for transactions or held as an investment. Its price is highly volatile and influenced by market demand, investor sentiment, and macroeconomic trends.