$BTC Bitcoin is a cryptocurrency proposed in 2008 by an anonymous developer (or team) known as Satoshi Nakamoto, based on blockchain technology, with a fixed total supply of 21 million coins, decentralized and without a physical issuer.

Its price is influenced by supply and demand, policies, market sentiment, etc., and is highly volatile, having experienced multiple instances of dramatic rises and falls. As a digital asset, it can be used for trading and investment, and is accepted for payment by some merchants. However, due to unclear regulations and strong speculation, there are legal and market risks, and investments should be carefully assessed for personal risk tolerance.