Why the heck wouldn't they belt and suspenders with the transaction hash?
(They could also just not cache, full stop. Better choice for Liquid specifically imo, but easy to say in retrospect).
waxwing on Nostr: It's remarkable (if not surprising) that this comment exists in the Monero source, ...
It's remarkable (if not surprising) that this comment exists in the Monero source, about caching the same kind of verification: