Bitcoin $BTC is the first and most well-known cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. It operates on a decentralized blockchain network, allowing peer-to-peer transactions without the need for intermediaries like banks. Bitcoin is limited to 21 million coins, making it a deflationary asset. It is often referred to as "digital gold" due to its store of value potential. Bitcoin is used for both investment and transactions, with increasing acceptance among institutions and retail users. Its price is highly volatile, influenced by market demand, regulation, and macroeconomic trends. Bitcoin continues to shape the future of digital finance globally.