BITCOIN AND CRYPTOCURRENCY
Bitcoin is a decentralized digital currency, also known as cryptocurrency, that operates on a peer-to-peer network. It was created in 2009 by an unknown person or group using the pseudonym Satoshi Nakamoto. Transactions are recorded on a public ledger called a blockchain, and the integrity of the currency is maintained through cryptography. Unlike traditional currencies, Bitcoin has a finite supply of 21 million coins, which is expected to be reached by 2140.