$BTC $BTC, or Bitcoin, is the original cryptocurrency—often called digital gold. Created in 2009 by the mysterious Satoshi Nakamoto, it introduced the concept of decentralized, peer-to-peer money. Bitcoin runs on a secure blockchain where every transaction is public and immutable. With a capped supply of 21 million coins, scarcity is built in, making it appealing as a store of value. Unlike fiat currencies, Bitcoin isn’t controlled by any government or central bank. It’s used for saving, trading, and in some cases, payments. Over time, BTC has become a symbol of financial freedom and a hedge against inflation. It's the crypto pioneer.