$BTC Bitcoin (BTC) is the world's first and most well-known cryptocurrency, introduced in 2009 by an anonymous person or group known as Satoshi Nakamoto. It operates on a decentralized blockchain network, allowing peer-to-peer transactions without the need for intermediaries like banks. Bitcoin has a fixed supply of 21 million coins, making it a deflationary asset. It is often referred to as "digital gold" due to its potential to store value. Over time, Bitcoin has gained acceptance as both an investment and a medium of exchange, influencing the global financial system and inspiring the creation of thousands of other cryptocurrencies.