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Cryptocurrency is a digital or virtual currency that uses cryptography for security and operates independently of a central bank. It is based on decentralized ledger technology, such as blockchain, that records transactions in a secure and transparent manner. Cryptocurrency operates on the principles of decentralization, anonymity, and immutability, and allows for peer-to-peer transactions without the need for intermediaries like banks.

Some well-known examples of cryptocurrency include Bitcoin, Ethereum, Cardano and Algorand.