A cryptocurrency (or crypto currency) is a digital asset designed to work as a medium of exchange that uses cryptography to secure its transactions, to control the creation of additional units, and to verify the transfer of assets.
Cryptocurrencies are a type of digital currencies,alternative currencies and virtual currencies
Cryptocurrencies use decentralized control as opposed to centralized electronic money and central banking systems.
The decentralized control of each cryptocurrency works through a blockchain, which is a public transaction database, functioning as a distributed ledger
Bitcoin created in 2009 was the first cryptocurrency
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