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Chemistry evidence-watch maintenance review — 10 October 2026

Reviewed operative checkpoint

The failed Chemistry watch on commit 340c8172e39f02c5776bf8a28dce7092be35a08e reported exactly five changed files, no added or removed paths, and 141 unchanged files. All five prior watch hashes match the previous committed source state ee13896d.

The changes belong to the already independently reviewed Chemistry integration at 180/381:

  • The canonical graph grows from 480 to 487 nodes: three ordinary BW learning goals, three practical assessments and one cluster. Only the existing root containment and Q3 exercise containment/applicability change; existing atomic goal bodies stay intact.
  • BW composition views add one practical endpoint for GK and three for LK. The internal Q3 placement does not claim an official BW semester assignment.
  • The BW extraction corrects two printed-page references, from 24 to 25 and from 38 to 39. All 126 original source obligations remain present.
  • Relative to the committed baseline, the BW mapping grows from 211 to 220 rows: 208 old rows remain exact, three old theory mappings become partial, six generic partial contributions and three practical contributions are added. The 217-to-220 count in the earlier adoption lineage refers to the intermediate candidate with those six generic contributions already present. The other 123 whole source decisions remain exact.

The whole concentration clause remains partial. Pressure, temperature, corrosion, full course/programme approval, 19 omitted goals and 496 unresolved source/scope findings remain open. Existing independent source and native-page reviews carry the bounded changes; this maintenance acknowledgement adds zero scientific reviews, strict closures or restored strict bindings.

Bounded acknowledgement and verification

The existing capture command supplies the five current records. Only those records and the baseline observation date advance; the other 141 complete records remain exact. The manifest, hash modes, checker and workflow are unchanged, so future unacknowledged source changes still fail.

The technical receipt binds the complete prior baseline and generated views, exact changed paths, existing scientific integration, independent technical comparison and actual normal command output. The independent comparison verifies nine historical freezes with 208 own file bindings and ten completed normal integration checks.

bash scripts/run_canonical_chemistry_evidence_watch.sh completed locally with Exit 0, including its self-test, changed=0 added=0 removed=0 and CHEMISTRY_EVIDENCE_WATCH=OK. Both watch views were regenerated normally. The new GitHub run must verify the fix separately.

For subsequent Chemistry integrations, include the normal evidence watch in the stable pre-commit checks whenever canonical semantics, source extraction, mapping or composition views change. Inspect each reported delta against its actual reviewed integration before acknowledging it; keep the complete prior baseline and update only the reviewed records. An automatic hash refresh is never a substitute for the scientific review.

Chemistry remains 180/381 and Biology 335/394; their 100% machine-QA goal is still open. Mathematics and Physics M7 remain protected. Human approval, practical trials and release acceptance are separate and are not asserted here.