$BTC Bitcoin (BTC) is a decentralized digital currency that allows users to make peer-to-peer transactions over the internet without the need for a central authority or bank. Launched in 2009 by the pseudonymous creator Satoshi Nakamoto, Bitcoin introduced blockchain technology, where all transactions are transparently recorded on a public ledger. Unlike traditional currencies, Bitcoin is not controlled by any government and has a fixed supply of 21 million coins, making it resistant to inflation. People use BTC for various purposes, including online payments, investments, and as a hedge against economic instability. Over the years, Bitcoin has gained widespread attention, influencing the rise of thousands of other cryptocurrencies and transforming the global financial landscape.