$BTC
Bitcoin (BTC) is a decentralized cryptocurrency created in 2009 by Satoshi Nakamoto, a pseudonym. It operates on a blockchain network, a distributed ledger that records transactions transparently and securely, without intermediaries. BTC uses a proof-of-work (PoW) consensus mechanism, where miners solve mathematical problems to validate transactions and earn rewards. Designed as an alternative to fiat money, Bitcoin allows for fast and secure global transfers, with a limited supply of 21 million coins, making it resistant to inflation. It is used as a store of value, medium of exchange, and investment asset.