CryptoCurrency
Definition of CryptoCurrency 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. [1] [2] [3] Cryptocurrencies are classified as a subset of digital currencies and are also classified as a subset of alternative currencies and virtual currencies . Bitcoin , created in 2009, was the first decentralized cryptocurrency. [4] Since then, numerous cryptocurrencies have been created. [5] These are frequently called altcoins , as a blend of bitcoin alternative . [6] [7] [8] Bitcoin and its derivatives use decentralized control [9] as opposed to centralized electronic money / central banking systems. [10] The decentralized control is related to the use of bitcoin's blockchain transaction database in the role of a distributed ledger . History CryptoCurrency In 1998, Wei Da