$BTC BTC is the financial symbol for *Bitcoin*, the first and most famous decentralized digital currency based on *blockchain* technology. It was launched in 2009 by an unknown person known as "Satoshi Nakamoto", and aims to enable direct transactions without the need for intermediaries like banks. Bitcoin is traded online and is used as an investment tool and a means of payment in some stores. Its price is influenced by supply and demand, global news, and government regulations. Bitcoin is limited to only 21 million units, which enhances its scarcity. BTC is considered a high-risk digital asset but also has the potential for high returns, and forms the cornerstone of the cryptocurrency world.