Bitcoin (BTC) is the first and largest cryptocurrency in the world, created in 2009 by Satoshi Nakamoto. As a decentralized digital asset, BTC operates without a central bank or intermediary, using secure and transparent blockchain technology. Bitcoin is often called "digital gold" because its supply is limited to only 21 million coins, making it a popular store of value. The price of BTC is highly volatile but tends to increase over the long term, making it both an investment asset and a primary trading instrument. Bitcoin pioneered the digital financial revolution, offering an independent alternative to the conventional banking system. With the largest market capitalization, Bitcoin has a significant influence over the movement of the entire crypto market.