What would a regular note look like, before and after a migration like this? Can you provide a real example? Curious what it looks like, and confused as to why if you're having to recreate a note as though the new key posted it, why providing a new POW value is not an option at the same time. The pubkey, sig, id, etc all change anyway?
Discussion
With this tool, you can offer PoW pubkeys. But we don't have the migration tool yet and you can't assume we will have until somebody makes it.
Right now, PoW keys are just a cosmetic benefit.