$BTC Bitcoin (BTC) is the first and most well-known cryptocurrency, launched in 2009 by an anonymous person or group using the name Satoshi Nakamoto. It operates on a decentralized peer-to-peer network, allowing users to send and receive digital currency without the need for a central authority or bank. Bitcoin uses blockchain technology, a public ledger that records all transactions securely and transparently. It has a limited supply of 21 million coins, contributing to its scarcity and value. BTC is widely used for investment, online purchases, and as a store of value similar to gold. Its price is volatile, influenced by market demand, regulation, adoption, and global economic trends.