$BTC Bitcoin (BTC) is the first and most well-known cryptocurrency in the world, created in 2009 by the mysterious Satoshi Nakamoto. It functions as decentralized digital money, without the need for banks or governments. It uses blockchain technology to record all transactions publicly and securely. With a maximum supply of 21 million BTC, its scarcity has contributed to its valuation. It is considered a store of value, nicknamed "digital gold." Bitcoin has revolutionized finance and has become the benchmark of the crypto market. It is used for global transfers, investment, and as a hedge against inflation and traditional monetary policies.