$BTC Bitcoin (BTC) is a decentralized digital currency, created in 2009 by an anonymous figure, Satoshi Nakamoto. Operating on a peer-to-peer blockchain network, it enables secure, transparent transactions without intermediaries like banks. Miners validate transactions using computational power, earning BTC rewards. With a fixed supply cap of 21 million coins, Bitcoin is often called "digital gold" for its scarcity and store-of-value potential. Its price is volatile, driven by market demand, adoption, and macroeconomic factors. BTC is used for payments, remittances, and investment, though scalability and energy use remain challenges. As of June 2025, Bitcoin continues shaping finance, with growing institutional interest and global adoption.