$BTC is the ticker symbol for Bitcoin, the first and most well-known cryptocurrency. It represents Bitcoin in trading platforms, charts, and financial discussions. As a decentralized digital asset, Bitcoin operates without a central authority, relying on blockchain technology to ensure transparency and security. $BTC is often seen as digital gold due to its limited supply of 21 million coins and its role as a store of value. Investors use $BTC to track market performance, speculate on price movements, and hedge against inflation. It remains the leading cryptocurrency by market capitalization, influencing the entire crypto ecosystem.