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Digital currency can be denominated to a sovereign currency and issued by the issuer responsible to redeem digital money for cash. In that case, digital currency represents electronic money (e-money). Digital currency denominated in its own units of value or with decentralized or automatic issuance will be considered as a virtual currency.
Kodak and WENN Digital Ethash [84] KodakCoin is a "photographer-centric" blockchain cryptocurrency used for payments for licensing photographs. Petro: Venezuelan Government: onixCoin [85] C++ [86] Stated by Nicolás Maduro to be backed by Venezuela's reserves of oil. As of August 2018 it does not appear to function as a currency. [87] PlusToken
Prior to the release of bitcoin, there were a number of digital cash technologies, starting with the issuer-based ecash protocols of David Chaum and Stefan Brands. [3] [4] [5] The idea that solutions to computational puzzles could have some value was first proposed by cryptographers Cynthia Dwork and Moni Naor in 1992.
On 3 January 2009, the bitcoin network was created when Nakamoto mined the starting block of the chain, known as the genesis block. [17] Embedded in this block was the text "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks ", which is the date and headline of an issue of The Times newspaper. [ 6 ]
The recent history of central bank digital currencies (CBDCs) has been marked by continuous exploration and development.By March 2024, over 130 countries were actively engaged in CBDC research with 3 countries, territories or currency unions having launched CBDCs, and 36 implementing pilot programs.
By the 2000s most money existed as digital currency in banks' databases. [125] In 2012, by number of transactions, 20 to 58 percent of transactions were electronic (dependent on country). [126] The benefit of digital currency is that it allows for easier, faster, and more flexible payments. [127]
Bitcoin was designed by its inventor, Satoshi Nakamoto, to work as a currency. [3] [4] It is commonly referred to with terms like: digital currency, [5]: 1 digital cash, [6] virtual currency, [7] electronic currency, [8] digital gold, [9] or cryptocurrency. [1] [a] The question whether bitcoin is a currency or not is disputed. [1]
The open-source project was originally called "Ripple", the unique consensus ledger was called the Ripple Consensus Ledger, the transaction protocol was called the Ripple Transaction Protocol or RTXP and the digital asset (known as "ripples") using XRP as the three-letter currency code to follow the naming convention of BTC for Bitcoin.