$BTC Bitcoin (BTC) is the first and most popular cryptocurrency, created in 2009 by an individual or group under the pseudonym Satoshi Nakamoto. It operates on blockchain technology and is not controlled by any central authority. Bitcoin uses cryptography to ensure transaction transparency and security. It is primarily used as a digital asset for online transactions, investment, and value storage. Its supply is limited to 21 million, making it more valuable over time. Bitcoin’s price is highly volatile,