$BTC $BTC Bitcoin (BTC) is the first and most well-known cryptocurrency, created in 2009 by the anonymous figure Satoshi Nakamoto. It operates on a decentralized, peer-to-peer blockchain network without the need for a central authority. Bitcoin is limited to 21 million coins, making it a scarce digital asset often referred to as "digital gold." It enables fast, borderless transactions and is used for both investment and payments. BTC is secured through mining and a consensus mechanism called Proof of Work. Its price is highly volatile, influenced by market demand, regulation, and adoption. Bitcoin remains a key driver in the cryptocurrency ecosystem.