Preflight (A0): 2026-07-10 20:45 โ load1 2.31/32c (falling) ยท no heavy nasimubd jobs ยท 35 GiB avail, si/soโ0 ยท all four services active โ ALL PASS. Sync: main up-to-date, worktree 0 behind. One capped run (0.33 min), readonly=2 loader, no resampling (paper-native ฯยฒ null). Batch selection on the ledger: B-06 over B-02 (deeper deficit; declaration layer; full-boundary coverage); B-05 operator-gated.
| Leg | Reading | Ruling |
| E1 โ the certain zero + the degeneracy guard | Twin-model vs dur-model loss differential == 0.0 bit-exactly at every t, all 3 envs; the zero-differential guard fired โ no 0/0 NaN leak (F014 teeth) | PASS |
| E2 โ gauge consistency | Substitution loss-diff series bit-equal in all envs | PASS |
| E3 โ the boundary role in native form | Pooled 3-window panel, regime-dummy instruments (q=3): conditional Wald 36.24, p = 6.7ร10โปโธ (unconditional q=1: 25.46, p = 4.5ร10โปโท; HAC lag 9 derived) โ predictive advantage IS regime-conditioned on the canonical pair | PASS โ decisive |
| Dial audit | HAC lag derived (row-64 convention) ยท burn-in โโnโ ยท leakage-safe expanding forecasts ยท ฮฑ standard ยท zero dials, zero resampling | CLEAN |
| Honest correction | The HAC machinery lives in the row-64 certified line (anchor_triad_exam_v2), not row-56 as the results JSON's label says โ corrected on the ledger | RECORDED |
| Verdict (row 96) | EXAM PASS (first form) โ B-06 open; full-boundary coverage reached |
Iteration 85 ยท 2026-07-10 ยท CHECKPOINT (row 96) โ B-06 OPENED ยท H-093 EXAM PASS ยท capped (0.33 min) ยท readonly=2 ยท zero generated values ยท zero code reuse beyond campaign-certified lines ยท append-only ยท evidence: gw_cpa_exam.py ยท gw_cpa_exam_results.json