$BTC Bitcoin (BTC) is the world’s first decentralized digital currency, created in 2009 by an anonymous figure known as Satoshi Nakamoto. It operates on a peer-to-peer network without the need for banks or central authorities. Transactions are verified by network nodes through cryptography and recorded on a public ledger called the blockchain. Bitcoin has a fixed supply of 21 million coins, making it scarce and often considered “digital gold.” It’s widely used for online payments, investments, and as a hedge against inflation. Bitcoin’s price is highly volatile, influenced by market demand, regulation, and investor sentiment, making it both risky and rewarding.