Crypto (asset cryptocurrency/cryptocurrency) is a digital or virtual currency that uses cryptography (secret keys) to secure transactions, verify transfers, and control the creation of new units. It operates in a decentralized manner without a central authority like a central bank and is recorded on a digital ledger technology called blockchain. Crypto functions as a medium of exchange and an investment instrument, with Bitcoin being the first and most famous, but it carries high risks due to its volatility.
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