#BTC Bitcoin (BTC) is a decentralized digital currency that allows people to send and receive money over the internet without relying on banks or governments. It operates on a technology called blockchain, which is a secure and transparent ledger of transactions. Bitcoin is known for its limited supply—only 21 million coins will ever exist—making it a popular choice for investors seeking a hedge against inflation. It can be used for payments, trading, or held as a long-term store of value.