$BTC Bitcoin (BTC) is the world's first decentralized digital currency, created in 2009 by an anonymous entity known as Satoshi Nakamoto. It operates on a technology called blockchain, a public, immutable ledger that records all transactions across a peer-to-peer network.

Unlike traditional currencies, Bitcoin isn't controlled by any central bank or government, offering users greater financial autonomy. Transactions are secure, pseudonymous, and can be sent globally with relatively low fees. However, its value is highly volatile, and it faces regulatory uncertainties and security risks like hacking. Despite these challenges, Bitcoin is increasingly recognized as a store of value and a disruptive financial innovation.