$BTC Bitcoin is the first and most well-known cryptocurrency, a purely digital form of money. Created in 2009 by the pseudonymous Satoshi Nakamoto, it operates on a revolutionary technology called blockchain – a decentralized, public ledger recording all transactions. Unlike traditional currencies controlled by governments or banks, Bitcoin relies on a global peer-to-peer network. New bitcoins are created through "mining," where powerful computers solve complex puzzles to validate transactions and secure the network. Key features include its finite supply (capped at 21 million coins), divisibility (down to tiny fractions called satoshis), pseudonymity, and significant price volatility. Bitcoin functions as both a potential payment system and a speculative digital asset, sparking ongoing debate about its future role in finance