$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 blockchain network, using a peer-to-peer system to enable secure and transparent transactions without the need for banks. Bitcoin mining involves solving complex mathematical problems to validate transactions and generate new coins. BTC is often seen as digital gold and a hedge against inflation. Its price is highly volatile, influenced by supply, demand, regulations, and market sentiment. Many investors and institutions now accept Bitcoin, but debates over its sustainability continue.