The previous artifact was produced from a dirty working tree while HEAD still
pointed at the harness commit, so its recorded revision could not reproduce it.
This one records git_dirty false alongside sha256 of the three source files it
depends on, so the claim "checking out this revision reproduces this artifact"
is now checkable rather than implied.
All hard gates pass, including the first-scored-date anchor and the row-wise
state_v4 <= state_v3 invariant, so it carries a non-null recommendation.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
