$BTC
Bitcoin (BTC) is a decentralized digital currency created in 2009 by Satoshi Nakamoto. It runs on blockchain technology, which records all transactions on a public ledger. Unlike traditional money, Bitcoin isn’t controlled by any government or bank. It allows fast, peer-to-peer transactions worldwide with low fees. Bitcoin has a fixed supply of 21 million coins, making it scarce and often called “digital gold.” People use BTC for investment, online payments, and as protection against inflation. Its value changes based on market demand. Bitcoin has inspired thousands of other cryptocurrencies and remains the most well-known and valuable crypto asset in the world.