$BTC Bitcoin (BTC) is the world’s first and most popular cryptocurrency, created in 2009 by an unknown person using the name Satoshi Nakamoto. It operates on a decentralized network called blockchain, which records all transactions publicly and securely. Unlike traditional money, BTC isn't controlled by any government or bank. People can buy, sell, or trade Bitcoin online, and many use it as a digital investment. Its limited supply of 21 million coins makes it scarce and valuable. Bitcoin is known for its price volatility, making it popular among traders and investors. It represents the future of digital, borderless financial freedom.