Fascinating. Slighty related: I've stumbled over Primecoin¹ while researching Litcoin mining. Primecoin uses prime chains as proof of work. Existing GPU impleme

Fascinating. Slighty related: I've stumbled over Primecoin¹ while researching Litcoin mining. Primecoin uses prime chains as proof of work. Existing GPU implementations are slower than modern processors and I'm not sure about the feasability of FPGAs and ASICS. It's an interesting idea. 1: https://en.wikipedia.org/wiki/Primecoin https://en.wikipedia.org/wiki/Primecoin