tests done

docs/research/history-depth-extension.md

@@ -1,8 +1,8 @@
 # History-depth extension (Tier-1 alpha research)
 
-**Status:** **RUN COMPLETE — human interpretation below.**  
+**Status:** sector-resid deep test **FAIL** — see supersession section. PENDING_HUMAN beyond PASS/FAIL.
 **Branch:** `research/earnings-gap-and-sue` (MacBook commit `f6e0ca7`)  
-**Authoritative artifact:** `reports/history-depth-20260719-103315.json`  
+**Superseded artifact (do not cite):** `reports/history-depth-20260719-103315.json` — **UNMASKED, TWO-TIER SNAPSHOT**  
 **Production impact:** none. **Do not retune any production knob on deep history.**
 
 ---
@@ -180,3 +180,19 @@ report does not change that without a separate A/B. Flag for human awareness onl
 | `reports/history-depth-20260719-103315.json` | **authoritative** |
 | `reports/history-depth-20260719-103315.md` | companion dump |
 | `reports/history-depth-20260719-093853` … `095156` | **ignore** (partial) |
+
+---
+
+## Supersession notice (2026-07-19 sector-resid deep test)
+
+The table and interpretation from **`history-depth-20260719-103315`** are **UNMASKED, TWO-TIER SNAPSHOT — superseded, directional only, do not cite**. Prod-universe names (and sector residual coverage) were left shallow while breadth names were deepened; sector residual weeks=35 was a data gap.
+
+### Sector-residual deep test outcome: **FAIL**
+
+Task 1 CLOSED — sector residual dead on deep evidence.
+
+- Reason: failed one or more pre-registered checks (see checks)
+- Artifact: `reports/sector-resid-deep-20260719-113319.json`
+- Mechanical checks: see that report.
+
+**Future snapshot rebuilds must verify per-symbol depth** (earliest-bar uniformity across the intended universe) — guard is a to-do, not part of this order.