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Cryptocurrency is a digital or virtual form of currency that uses cryptography for security. It operates independently of a central authority, such as a government or bank. Transactions are recorded on a decentralized ledger called a blockchain. Popular cryptocurrencies include Bitcoin, Ethereum, and Litecoin.
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Cryptocurrency is a digital asset designed to work as a medium of exchange using cryptography to secure transactions, control the creation of additional units, and verify the transfer of assets. Cryptocurrencies are decentralized systems typically based on blockchain technology. Bitcoin, created in 2009, was the first decentralized cryptocurrency.