Bitcoin (BTC) is a decentralized digital currency that enables peer-to-peer transactions without intermediaries. Created in 2009 by an anonymous entity known as Satoshi Nakamoto, Bitcoin operates on a blockchain, a public ledger that records all transactions. Bitcoin's value is determined by market demand and supply, making it volatile. It's often seen as a store of value or investment asset. Bitcoin has sparked significant interest and innovation in the financial and tech sectors, with many exploring its potential applications beyond currency, such as smart contracts and decentralized finance (DeFi). Its impact on traditional finance continues to grow.