$BTC is the first and most well-known cryptocurrency, created in 2009 by the mysterious figure Satoshi Nakamoto. It operates on a decentralized blockchain network, allowing peer-to-peer transactions without banks or intermediaries. With a fixed supply of 21 million coins, Bitcoin is often called "digital gold" and is used as a store of value and hedge against inflation. It relies on proof-of-work mining, ensuring security and transparency through a public ledger. Over time, BTC has evolved from an experimental asset to a globally recognized investment, driving the growth of the entire crypto industry and shaping the future of finance.