$BTC Bitcoin (BTC) is the first and most well-known cryptocurrency, created in 2009 by an unknown person or group using the name Satoshi Nakamoto. It operates on a decentralized network called blockchain, which records all transactions transparently and securely. Bitcoin is not controlled by any government or central bank, making it popular for those seeking financial independence. It has a limited supply of 21 million coins, adding to its value over time. People use BTC for trading, investment, and sometimes as a digital alternative to money. Bitcoin continues to lead the crypto market and influence global financial discussions.