Digital Currency
Organizations supporting the mining, distribution and processing of virtual currency. There are more than 100 different forms of virtual currency with Bitcoin the largest based on market capitalization. Other big players include Ripple, Litecoin and Dogecoin.
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The Logo Story
Though not the oldest form of currency, some form of shell money appears to have been found on almost every continent. The shell most widely used worldwide as currency was the shell of Cypraea moneta, the money cowry.