Bitcoin is a decentralized digital currency that uses cryptography for secure financial transactions. It was created in 2009 by an individual or group of individuals using the pseudonym Satoshi Nakamoto. Transactions are recorded on a public ledger called the blockchain, and new bitcoins are created through a process called mining. The total number of bitcoins that will ever be created is capped at 21 million. Bitcoin is used as a store of value, a medium of exchange, and a unit of account, m...