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Many cryptocurrencies are built on blockchain technology, which is a distributed ledger enforced by a distributed network of computers. Cryptocurrencies are distinguished from fiat currencies like the United States dollar or the British pound because any central authority does not issue them, making them potentially impervious to government intervention or manipulation.

Billed as the mother of all cryptocurrencies, Bitcoin which is a decentralised digital currency was created by someone called Satoshi Nakamoto (possibly a pseudonym) in 2009. As with most cryptocurrencies, Bitcoin is without a central bank or single administrator that can be sent from user to user on the peer-to-peer Bitcoin network without the need for intermediaries. Transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a Blockchain, according to IANS report.
Card issuers, networks and manufacturers are working to shrink their carbon footprint as consumers become more environmentally conscious and global carbon emissions climb. Mastercard CEO pushes back against regulatory zeal