$BTC Bitcoin (BTC) is the first and most well-known cryptocurrency, introduced in 2009 by an anonymous entity known as Satoshi Nakamoto. It is a decentralized digital currency that operates without a central bank or single administrator. Transactions are verified by network nodes through cryptography and recorded on a public ledger called the blockchain. Bitcoin offers a peer-to-peer system that allows users to send and receive money globally without intermediaries, reducing fees and increasing privacy. Its limited supply—capped at 21 million coins—contributes to its appeal as a hedge against inflation. Bitcoin has gained widespread attention for its potential to disrupt traditional financial systems, attract investment, and serve as digital gold. Despite its volatility and regulatory challenges, BTC continues to grow in adoption across industries, from online payments to institutional finance. It has inspired the creation of thousands of other cryptocurrencies, shaping the foundation of the broader blockchain and crypto ecosystem.