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Re:Show HN: CryptoNote is an open source, encrypted, one tim... by alainmeier on Friday June 07, 2013 @02:57PM (#5840915)
I didn't know about those, they look very cool. Thanks for the link.
Re:Show HN: CryptoNote is an open source, encrypted, one tim... by estsauver on Friday June 07, 2013 @05:25PM (#5842031)
(His company produced the challenges also, for what it's worth.)