diff --git a/docs/evidence/frozen-standard-rolling-lookbacks-rejection-20260905.json b/docs/evidence/frozen-standard-rolling-lookbacks-rejection-20260905.json
new file mode 100644
index 0000000..7efdb40
--- /dev/null
+++ b/docs/evidence/frozen-standard-rolling-lookbacks-rejection-20260905.json
@@ -0,0 +1,51 @@
+{
+  "schemaVersion": "fidc-frozen-standard-rolling-lookbacks-rejection/v1",
+  "measuredAt": "2026-09-05T03:03:00+08:00",
+  "host": "192.168.31.177",
+  "candidateCommit": "32e4030",
+  "revertCommit": "05e67c73df0c002efec15711dd5ef066d817abec",
+  "restoredRunnerBinarySha256": "1071852a374620029398a967d485b827ed2defbb6ecbcc3f1ee6ffd3e2db76b6",
+  "candidate": {
+    "description": "replace per-stock rolling requirement-set lookups with strategy-level fixed standard lookback arrays",
+    "primaryHotEngineSeconds": [4.329, 4.455, 4.751, 4.822, 4.847],
+    "primaryHotMedianEngineSeconds": 4.751,
+    "secondaryEngineSeconds": [4.774, 5.473, 6.161, 5.491],
+    "hardwareRunId": "btr_1788548442183_3221468_10",
+    "hardwareRunEngineSeconds": 10.522,
+    "hardwareRunHostLoadAverage": 42.93,
+    "instructions": 26384933876,
+    "branches": 4682344116
+  },
+  "acceptedBaseline": {
+    "engineCommit": "75ab0c0",
+    "primaryHotMedianEngineSeconds": 4.729,
+    "instructions": 26049740736,
+    "branches": 4601262679
+  },
+  "observed": {
+    "primaryMedianRegressionPercent": 0.4652146331148285,
+    "instructionRegressionPercent": 1.2867427104054538,
+    "branchRegressionPercent": 1.7621562309418415
+  },
+  "businessContract": {
+    "primaryTotalReturn": 0.9219861819172002,
+    "primaryTradeCount": 26088,
+    "primaryCanonicalSha256": "b42fea66237d06eadb24f6b8c9e2760e7319fe3699f315b99e01f433ef2aa234",
+    "primaryResultStoreSha256": "92343fb369fea68b2544b654151c5c43a935940580b14afbe8eefb3844f72a54",
+    "secondaryTotalReturn": 1.1342962298106998,
+    "secondaryTradeCount": 19404,
+    "secondaryCanonicalSha256": "0dbd3fad624097c673c4a5ec2f545f95e9c21d1d5337bb2b48ffeb22b16cb2b9",
+    "secondaryResultStoreSha256": "416d2f87241fb4c6b917f6aeecb588f82f6e7d51a103f4c53a74d11971f16839",
+    "resultConsistent": true,
+    "terminalAuditStatus": "clean"
+  },
+  "remoteArtifacts": [
+    "/srv/fidc/canonical/run/fidc-private/evidence/frozen-standard-rolling-lookbacks-primary-20260905.json",
+    "/srv/fidc/canonical/run/fidc-private/evidence/frozen-standard-rolling-lookbacks-secondary-20260905.json",
+    "/srv/fidc/canonical/run/fidc-private/evidence/frozen-standard-rolling-lookbacks-perf-stat-20260905/perf-stat.csv"
+  ],
+  "acceptance": {
+    "status": "rejected_and_removed",
+    "reason": "the compiler layout change increased retired instructions and branches while the primary end-to-end median did not improve"
+  }
+}