$BTC Bitcoin (BTC) is a digital currency that is decentralized and based on blockchain technology. It was invented in 2008 by an unknown person or group known as Satoshi Nakamoto. Bitcoin is characterized by its security, anonymity, and transaction speed. It is used for online transactions and is also a popular investment option. The price of Bitcoin is determined by market demand and supply. Its future is uncertain, but it plays a significant role in the field of digital currency.