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Date published: August 16, 2017Reuters"Following the growth of bitcoin, the most well known cryptocurrency, there are now more than 1,000 similar digital currencies being traded over the internet, said Arvind Narayanan, a computer science professor at Princeton University in the United States.
Most of these new digital offerings, however, are used for speculation - investors hoping the currency will gain popularity and then rise in value - rather than buying and selling tangible goods and services, Narayanan said.