$BTC Bitcoin (BTC) is a decentralized digital currency that enables peer-to-peer transactions without intermediaries, leveraging blockchain technology for security and transparency. Created in 2009 by Satoshi Nakamoto, Bitcoin operates on a limited supply of 21 million units, with each unit divisible into 100 million satoshis. Transactions are irreversible and recorded on a public ledger, secured by elliptic curve cryptography. Bitcoin's value is determined by market forces, making it a volatile asset. Its decentralized nature and scarcity have drawn comparisons to gold, with some viewing it as a store of value and hedge against inflation.