$BTC Bitcoin (BTC) is a Decentralized Digital Currency. Introduced in 2009 under the name Satoshi Nakamoto. It is not under the control of any government. All transactions are recorded on a public ledger called Blockchain. The supply limit is only 21 million coins, creating scarcity. It is widely used in crypto trading, investing, and peer-to-peer payments. New bitcoins are created through mining. Security, transparency, and decentralization are its key importance. Countries like El Salvador have adopted it as legal tender. However, due to high volatility, the risk is significant. Institutional adoption is increasing. It is often referred to as digital gold. BTC is seen as the future currency and plays a crucial role in Web3 and DeFi.