$BNB Bitcoin (BTC) is the world’s first and most well-known cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. It operates on a decentralized blockchain network, allowing peer-to-peer transactions without the need for intermediaries like banks. Bitcoin is secured through cryptographic algorithms and a consensus mechanism called Proof of Work, where miners validate transactions and earn new BTC as rewards. With a capped supply of 21 million coins, Bitcoin is often viewed as “digital gold” and a hedge against inflation. It plays a major role in the global financial system and has influenced the growth of thousands of other cryptocurrencies.