Bitcoin (BTC) is the world's first and most popular cryptocurrency. Created in 2009 by Satoshi Nakamoto, Bitcoin operates on a decentralized blockchain network, allowing users to send and receive payments without banks or other intermediaries. Its limited supply of 21 million coins makes it attractive as a store of value, often called “digital gold.” Bitcoin is widely used for investment, trading, and international transactions. Despite price volatility, it remains the largest cryptocurrency by market capitalization and continues to influence the growth of the global digital asset industry and blockchain technology.