$BTC Bitcoin ($BTC) is a decentralized digital currency that was proposed and launched by Satoshi Nakamoto in 2009, operating on blockchain technology. Its maximum supply is 21 million coins, generated through a process called 'mining'. Bitcoin is not controlled by any government or financial institution, and is regarded as 'digital gold', often used for value storage and as an anti-inflation asset. Due to its scarcity, security, and global circulation characteristics, an increasing number of investors and institutions are incorporating it into their portfolios. However, its price is highly volatile, and regulatory policies and technical risks remain significant factors affecting the development of Bitcoin.