Kimberly J Brown - Life and career

Primecoin sign code XPM is a cryptocurrency that implements a proof-of-work system that searches for chains of prime numbers Launched on 7 July 2013 by anonymous hacker and Peercoin founder Sunny King Primecoin was the first cryptocurrency to have a proof-of-work system with a practical use Earlier cryptocurrencies such as Bitcoin were mined using algorithms that solved arbitrary mathematical problems the results of which had no value or use outside of mining the cryptocurrency itself Primecoin's algorithm however computed chains of prime numbers Cunningham and bi-twin chains the results of which were published on its blockchain's public ledger available for use by scientists mathematicians and anyone else Use of a proof-of-work system to calculate chains of prime numbers was an innovation that produced useful results while also meeting the criteria for a proof-of-work system it involved a calculation that was difficult to perform but easy to verify and the difficulty was adjustable primecoin xpm XPM a https 3A 2F 2Fprimecoin io a

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