Bitcoin (BTC) is the first and most famous cryptocurrency in the world, launched in 2009 by a person or group under the pseudonym "Satoshi Nakamoto". It relies on blockchain technology, a decentralized network that enables secure transactions without the need for an intermediary. Bitcoin is mined by solving complex mathematical equations, which limits its total supply to 21 million coins. BTC is used as a means of payment, an investment tool, and a digital asset that can be traded in financial markets. Despite its extreme price volatility, it remains a leader in the cryptocurrency sector, driving innovation in financial technology and decentralized economic systems.