diff --git a/phases/nonlinear-static-newton-raphson/index.json b/phases/nonlinear-static-newton-raphson/index.json
index 28ebc03..77cc5c2 100644
--- a/phases/nonlinear-static-newton-raphson/index.json
+++ b/phases/nonlinear-static-newton-raphson/index.json
@@ -69,7 +69,10 @@
     {
       "step": 8,
       "name": "nonlinear-state-commit-rollback",
-      "status": "pending"
+      "status": "completed",
+      "summary": "Added transactional nonlinear committed/trial state with stable full source identities, validated accepted frames, and rollback regression coverage.",
+      "started_at": "2026-08-24T14:34:19+0900",
+      "completed_at": "2026-08-24T14:52:08+0900"
     },
     {
       "step": 9,