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Meni Rosenfeld earned this badge 7 times
apr 12 at 23:31Why so many bitcoin exchanges have their bank accounts closed and have problems establishing bank accounts?
apr 7 at 12:34Will Bitcoin suffer from a mining Tragedy of the Commons when mining fees drop to zero?
apr 4 at 16:22Why can we have small fractions of a Bitcoin?
jan 11 at 20:59How is difficulty calculated?
dec 14 '11 at 14:44Pool Hopping Math