$BTC Bitcoin (BTC) is a decentralized digital currency, created in 2009 by an anonymous entity, Satoshi Nakamoto. Operating on a peer-to-peer network, it uses blockchain technology—a distributed ledger ensuring transparency and security. Transactions are verified by miners through proof-of-work, preventing double-spending without intermediaries like banks. BTC’s supply is capped at 21 million coins, with about 19.7 million in circulation as of June 2025. Its price is volatile, recently trading around $67,000-$70,000, influenced by market demand, halving events, and macroeconomic factors. Bitcoin serves as a store of value, medium of exchange, and hedge against inflation, though regulatory scrutiny and environmental concerns persist. Adoption continues growing globally.