$BTC Bitcoin (BTC) is the largest and most popular cryptocurrency in the world. It operates on a decentralized network, meaning no single authority controls it. Bitcoin is known for its limited supply of 21 million coins, which helps maintain its value over time. Traders and investors view BTC as both a digital asset and a hedge against inflation. Its price is highly volatile, often reacting to global events, regulations, and investor sentiment. Despite short-term drops, Bitcoin has shown long-term growth. Many see it as the future of money and a key part of the evolving financial system known as decentralized finance.