@guyo13 Great post to expose a potential issue. Is there anyway to use this pattern without the "wait until all pieces minted" portion?
That's to say, have a randomized set of metadata where a user doesn't know what he/she will receive until time of mint but maintain the provenance set?
I suppose you could use a VRF to generate a random number on mint, and then try to find a non-gas intensive way to track if that random number had already been minted. Would that work?