On Thu, 20 Nov 2014, Alex Smith wrote:
comes up with a mapping from random results to answers (although this can't be done as ranges, e.g. if you want a 75% probability, you need not just "1-3: yes, 4: no" and "1: no, 2-4: yes" but also "1, 2, 4: yes, 3: no" and "1, 3, 4: yes, 2: no"), and then publishes a hash of that
This is just selecting a random value to add (mod 4) to the base selection, no? (And any size number-of-uniform-options group operation would work.)
Greetings, Ørjan.

