Two checks the human asked for after Phase 1: whether the mapping list
from the 2026-08-07 history rewrite still resolves older references, and
how far the anonymisation rule actually reaches.
sha_refs.tsv verifies all 251 mapping rows against the repos and
resolves every SHA cited in a management doc.
timestamp_anonymisation.tsv separates the project's own commits from
upstream fork history before counting non-compliant timestamps.