$BTC Bitcoin (BTC) is the world’s first decentralized cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. Operating on blockchain technology, it enables peer-to-peer transactions without intermediaries like banks. Bitcoin’s supply is capped at 21 million coins, ensuring scarcity and fostering its role as "digital gold." Transactions are verified by miners using energy-intensive proof-of-work, adding security and transparency. BTC is valued for its potential as an investment, inflation hedge, and alternative currency. However, it faces criticism for volatility, energy consumption, and regulatory uncertainty. Despite challenges, Bitcoin remains a cornerstone of the cryptocurrency ecosystem, driving financial innovation and decentralized finance.