$BTC Bitcoin (BTC) is a decentralized digital currency that allows users to send and receive money over the internet without relying on banks. Created in 2009 by the mysterious figure Satoshi Nakamoto, Bitcoin operates on a technology called blockchain, which records all transactions publicly and securely. It has a fixed supply of 21 million coins, making it resistant to inflation. Bitcoin is often viewed as “digital gold” and is used both for investment and as a means of payment. Its price is highly volatile, affected by news, regulations, and market demand. Despite risks, it remains the most popular cryptocurrency globally.