$BTC Bitcoin (BTC) is the world's first and most valuable cryptocurrency by market cap. Created in 2009 by the mysterious Satoshi Nakamoto, BTC introduced decentralized digital currency to the world. It operates on a peer-to-peer network without any central authority. Bitcoin is limited to 21 million coins, making it scarce and often referred to as "digital gold." Its price is highly volatile and influenced by supply-demand dynamics, investor sentiment, regulations, and macroeconomic trends. BTC is widely accepted for payments and used as a store of value. Over time, Bitcoin has become a key player in the global financial and crypto ecosystem.