Bitcoin (BTC) is the first cryptocurrency, created by an anonymous entity called Satoshi Nakamoto in 2008. It operates on a decentralized network using blockchain technology, which records all transactions in a secure, public ledger. Bitcoin has a limited supply of 21 million coins, making it a deflationary asset. Transactions are verified through mining and Proof-of-Work. Known for its volatility, Bitcoin is often viewed as a store of value and is used globally for payments, investment, and hedging. Its decentralized nature, security, and increasing institutional interest have made it a key player in the crypto world.