Keeping what it saw, not just what it concluded
A finding you cannot trace is a finding you cannot argue with.
What it is
Every claim in every issue points at a page, a review or a listing, and a date. That is not a citation style — it is the thing that makes a report worth reading, because it is what lets you disagree with one and settle it by looking.
Crawls are stored as dated snapshots with a content hash. A finding in an issue from four months ago still resolves to the exact page it was drawn from, in the state it was in on the day.
How far it goes
If you tell us a finding is wrong, we open the snapshot it came from. It is a question with an answer rather than an argument.
Performed by
evidence/collect.py. This page names the functions that do it, and
the build fails if any of them is renamed — marketing copy has no
compiler, so we gave this page one.