$BTC BTC (Bitcoin) 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 blockchain network, allowing peer-to-peer transactions without a central authority like a bank. BTC is often seen as digital gold due to its limited supply of 21 million coins. It is used for online purchases, investment, and as a store of value. Bitcoin's price is highly volatile and influenced by market demand, news, and investor sentiment. It has sparked global interest in cryptocurrencies and continues to shape the future of digital finance.