Phase 1 v0.2 Consensus Verdict

v0.1 has independently reproduced the two representative branches of Algorithm 2; v0.2 upgrades the work from "result reproduction" to "versioned certificate regression"—adding a complete diff between the old fixture (May 22) and the current fixture (June 3), an independent adversarial corpus from the official discrepancy report, a controlled failure dictionary for false-positive/unknown/timeout/testing-only, a soundness preflight before the 500K rerun, data stratification for "version regression does not equal mathematical rejection reason", and executable regression tests. The most important discovery: the old fixture had 25 curves, while the current fixture has only 12 left—the current set is a pure subset of the old set, retaining 12, removing 13, and adding 0. This result points directly to a disciplinary conclusion: theorem-producing code cannot just save the final success list; it must preserve the version history of its mathematical semantics. The document splits the diff into two adversarial corpora—Corpus A (Version Regression) only answers "which curves were previously passed by the old official pipeline but are no longer passed by the current version", proving only membership change without automatically inferring the mathematical rejection reason for each; Corpus B (Explicit Discrepancy) consists of the current rejection reasons listed predicate by predicate for four curves in the official discrepancy_report.txt, which is the true theorem-level adversarial corpus. Finally, a new gate is established: before entering the 500K full-scale rerun, one must simultaneously pass the current positive fixture, the historical version regression, and the explicit discrepancy corpus.