$BTC Bitcoin is a cryptocurrency developed in 2009 by a person or group known as Satoshi Nakamoto. Bitcoin is the first cryptocurrency based on blockchain technology, which ensures transparency and security by recording all transactions in a public ledger. Bitcoin is created through a process called "mining", in which powerful computers are used to solve complex mathematical problems. Bitcoin is not controlled by governments or central banks, making it attractive as a means of payment or investment tool. Despite its popularity, Bitcoin has faced sharp fluctuations in its value, as well as controversy over energy consumption and regulatory challenges. #$BTC