$BTC Bitcoin ($BTC) is the first decentralized cryptocurrency, launched in 2009 by Satoshi Nakamoto. It operates on blockchain technology, ensuring transparency, security, and decentralization. With a capped supply of 21 million coins, it’s seen as a hedge against inflation and dubbed "digital gold." Bitcoin’s price is volatile, influenced by macroeconomics, regulations, and adoption. It’s gaining mainstream acceptance, with scalability improvements like the Lightning Network enhancing usability. As the largest cryptocurrency, Bitcoin shapes global market trends and remains a cornerstone of the crypto ecosystem.