$BTC Bitcoin ($BTC) is the first and most well-known cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. It operates on a decentralized blockchain network, allowing peer-to-peer transactions without the need for a central authority like banks. Bitcoin is often referred to as "digital gold" because of its limited supply—only 21 million coins will ever exist. It has gained popularity as both a store of value and a speculative investment. However, its price is highly volatile, influenced by market demand, regulation, and macroeconomic trends. Bitcoin continues to shape the future of finance, challenging traditional systems with its innovative technology.