#看懂K线 Bitcoin ($BTC) is the world's first and most influential cryptocurrency, launched by Satoshi Nakamoto in 2009. It is based on blockchain technology and features decentralization, transparency, and immutability. Bitcoin is generated through a 'mining' mechanism, with a total supply limited to 21 million coins, which is why it is viewed by many as 'digital gold.' As a store of value and investment asset, Bitcoin is widely accepted globally, driving the development of the entire cryptocurrency ecosystem. However, its price is highly volatile and faces regulatory and technical challenges, making it a high-risk, high-reward investment target.