#$BTC
Bitcoin (BTC), the first and largest cryptocurrency, was created in 2009 by the pseudonymous **Satoshi Nakamoto** as a decentralized digital currency. With a fixed supply of **21 million coins**, Bitcoin is often called "digital gold" due to its scarcity and store-of-value properties. It operates on a **proof-of-work (PoW)** blockchain, secured by miners. BTC's price is highly volatile, influenced by factors like **adoption, regulation, macroeconomic trends, and halving events**. Major institutions now hold Bitcoin, and spot **BTC ETFs** have boosted mainstream access. Despite criticisms over energy use and scalability, Bitcoin remains the dominant crypto, shaping the future of money.