$BTC Bitcoin (BTC) is a decentralized cryptocurrency created in 2009 by a person or group using the pseudonym Satoshi Nakamoto. It operates without intermediaries like banks or governments, utilizing a network of computers (blockchain) to verify and record transactions. Its supply is limited to 21 million units, giving it deflationary characteristics. It is valued as a digital reserve and a global means of exchange. Its price is highly volatile, influenced by factors such as adoption, regulation, and speculation. Bitcoin has spurred an alternative financial movement known as 'crypto-economics', promoting financial sovereignty and free access to money in the digital age.