$BTC Bitcoin (BTC) is the world’s first and most well-known cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. It operates on a decentralized, peer-to-peer blockchain network without the need for intermediaries like banks. Bitcoin is often called "digital gold" due to its limited supply of 21 million coins and its use as a store of value. It’s widely used for investment, transactions, and as a hedge against inflation. Bitcoin's price is highly volatile, influenced by market sentiment, adoption, regulation, and macroeconomic factors. It remains the leading cryptocurrency by market capitalization and a key driver of the entire crypto ecosystem