$BTC
Bitcoin is a decentralized digital payment system and currency. It was created by a person or group, going by the username Satoshi Nakamoto, who posted a whitepaper on a discussion board.
Bitcoin operates without a financial system or government authorities and doesn't require the involvement of financial institutions. It can be used as an alternative to fiat currencies or as an investment bought through crypto exchanges. It utilizes peer-to-peer transfers on a digital network that records and secures all transactions. This network uses a blockchain, an open-source program that chains transaction histories to prevent manipulation.