Further to recent posts to this list concerning mining with more than one hash function, Adam Perlow and me have a (longish) proposal/analysis on combining multi-hash with bitcoin stake voting on what the mix of hashes should be. Two novelties are:

* Targeting a ratio of blocks mined under each hash function, in a similar way to difficulty targeting.

* Analysis of voting on this ratio in terms of "voting on a simplex", using extant research to choose a good method of doing so.

One point about mining under multiple hashes is that it offers existing miners a way back in after a contentious hard fork. Shame to waste all that hardware…

Read at http://topynate.net/wp-content/uploads/2017/03/proportionateresponse.pdf (archived at http://www.webcitation.org/6pEZLlZoW)

Nathan Cook