$BTC Bitcoin (BTC) is a decentralized digital currency proposed by Satoshi Nakamoto in 2008 and officially born in 2009. As the world's first cryptocurrency, Bitcoin is based on blockchain technology and enables transactions through a peer-to-peer network without relying on third-party institutions such as banks or governments. Its core characteristics are decentralization, transparency, and immutability.

The total supply of Bitcoin is capped at 21 million coins, gradually released through a process called 'mining'. Mining refers to miners using computational power to solve complex mathematical problems to validate transactions and maintain the security of the blockchain network; in return, miners receive newly generated Bitcoins and transaction fees. The value of Bitcoin is determined by market supply and demand, exhibiting high volatility. It is widely used for investment, payments, and value storage, especially in countries with severe inflation, where Bitcoin is seen as a safe-haven asset. However, its anonymity has also made it a tool for illegal activities, attracting the attention of regulatory authorities.

Despite the controversies, Bitcoin, as a pioneer of blockchain technology, has driven the development of financial technology and spawned thousands of other cryptocurrencies.