A cryptocurrency is a digital or virtual currency secured by cryptography, which makes it nearly impossible to counterfeit or double-spend. Many cryptocurrencies are decentralized networks based on blockchain technology—a distributed ledger enforced by a disparate network of computers.
Cryptocurrencies are digital or virtual currencies underpinned by cryptographic systems. They enable secure online payments without the use of third-party intermediaries. "Crypto" refers to the various encryption algorithms and cryptographic techniques that safeguard these entries, such as elliptical curve encryption, public-private key pairs, and hashing functions. Cryptocurrencies can be , purchased from cryptocurrency exchanges, or rewarded for work done on a blockchain. Not all e-commerce sites allow purchases using cryptocurrencies. In fact, cryptocurrencies, even popular ones lik, are hardly used for . However, cryptocurrency values have made them popular as trading and investing instruments. To a limited extent, they are also used for cross-border transfers.
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