$BTC Bitcoin (BTC) is the first and most well-known cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. It operates on a decentralized, peer-to-peer network using blockchain technology to record transactions transparently and securely. Unlike traditional currencies, Bitcoin is not controlled by any central authority, and its supply is capped at 21 million coins. BTC is often used as a digital store of value, sometimes referred to as "digital gold," and is widely traded on crypto exchanges. Its price is highly volatile, influenced by market demand, investor sentiment, regulation, and macroeconomic trends. Bitcoin continues to shape the future of finance.