$BTC Bitcoin, often represented by the symbol $BTC, is a decentralized digital currency that operates without a central authority or banks, using peer-to-peer technology to facilitate instant payments. It was created in 2009 by an unknown person or group of people under the name Satoshi Nakamoto. Since its inception, Bitcoin has become increasingly popular as both a form of investment and a method of payment, attracting a wide range of individuals and businesses due to its unique properties and potential for significant returns.