$BTC
Bitcoin ($BTC) is the first and most well-known cryptocurrency, launched in 2009 by an anonymous person or group known as Satoshi Nakamoto. It operates on a decentralized blockchain network, allowing peer-to-peer transactions without the need for a central authority like a bank. Bitcoin is limited to a supply of 21 million coins, making it scarce and often compared to "digital gold." It is widely used for investment, remittances, and as a hedge against inflation. Bitcoin's price is highly volatile and influenced by global economic factors, regulation, adoption, and market sentiment. It remains the leading cryptocurrency by market capitalization.