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Well nice piece of info, always thought Bitcoin was the first coin that came out but since you saying it's this then I should probably check online and get my facts right tooDeveloped in the mid-1990s, Hashcash was one of the most successful pre-bitcoin digital currencies, according to The Merkle. ... Hashcash used a proof-of-work algorithm to aid the generation and distribution of new coins, much like many contemporary cryptocurrencies