$BTC Bitcoin (BTC) is a decentralized digital currency that operates without a central bank or single administrator. It uses blockchain technology to record transactions on a public ledger, ensuring transparency and security. Created in 2009 by the pseudonymous Satoshi Nakamoto, BTC allows peer-to-peer transactions globally, with low fees and no intermediaries. It is often viewed as "digital gold" due to its limited supply of 21 million coins and its potential as a hedge against inflation. Bitcoin has grown from a niche asset into a widely recognized investment and payment method, influencing the broader cryptocurrency market.