Bind credential exec to exact owner inputs and approval digest

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a07ff8-19d0-7820-b4d0-1353833cb7fc

docs/evidence/2026-09-10-exec-owner-approval-exercise.json

@@ -0,0 +1,57 @@
+{
+  "schema_version": 1,
+  "target": "disposable local processes; synthetic credentials",
+  "started_at": "2026-09-10T07:15:53.047975+00:00",
+  "keycape_image": "forgejo.coulomb.social/coulomb/key-cape@sha256:7ff54c54e63ee172ae9e6e7fd2da96e427352f712343d74626ee6fe0f6f82611",
+  "approval_engine_commit": "62233c7c52447a6065055933a9c7cc1cfe3059eb",
+  "flex_auth_commit": "88b354377c8e26b162f1234e673072f1c06dcd89",
+  "keycape_contract_commit": "324b5e056dcfd5c6336750cd7a7b7f8c5ca2255f",
+  "consumer_source_sha256": {
+    "approval_auth.py": "6f3b033e7928e1c527bc19f5a1e01bf243540769a8646bd8cd47268da25637b5",
+    "approval_consume.py": "9ccc6997fd4c1c82af8cf3dd440daf7b695d6272bb302eb083b73a2fe3674345",
+    "approval_claim.py": "54dd469e4e3ac9472c4e21222d5a08f70723a63f01904a35922fcc0a07a41541",
+    "authorization.py": "0656589832b7218cc1603890e93a3e09513af8b59694f279defa764a1edb30c9",
+    "config.py": "2f2f1b60664d89bbb806aed0c768378923062077740e1f96e4c359238eb06955",
+    "service_auth.py": "653723ef5babce2157771416d93cb15cdbb7caca3c45509c3730520c55e4515c",
+    "cli.py": "1147d0e60850cfc38ee21e8564f51656d364ddc3cd8d6353a0c2dd6a0b78b8ec",
+    "catalog.py": "7e77c89a2543e3759f1322aca9b9167b904bb30e1aec867c4415dfde4bddd5fa",
+    "exec_owner.py": "10c21e7e37dd3d0aad41c4bb15df8f4a69c22d9046105a981a9613a91cd4c145",
+    "exec_delivery.py": "b142b60d875acf3dea1ba3ae99182a7ed7328d955dee5be2d12c977fc5646e8e",
+    "routing.py": "9d5050d7494a207394ce8251d8aac574ca0c08e3252639b5f05b373d6e35a076"
+  },
+  "limitations": [
+    "standalone Flex Auth source, not deployed pin",
+    "local Approval Engine source, not deployed image",
+    "no live custody or client-side read grant",
+    "no OpenBao effect or model execution"
+  ],
+  "checks": {
+    "operator_issued_and_approved_via_verified_jwt": true,
+    "wrong_action_refused_before_consume": true,
+    "producer_origin_join_with_carried_claim": true,
+    "actual_consumer_claim_check_consume": true,
+    "same_digest_retry_idempotent": true,
+    "different_digest_refused": true,
+    "spent_claim_refused": true,
+    "operator_consume_scope_denied_by_issuer": true,
+    "wrong_secret_refused": true,
+    "no_access_token_file_created": true,
+    "registry_override_accepts_exact_submission": true,
+    "same_enriched_result_different_submission_refused": true,
+    "real_dual_control_denial_then_claim_check_consume": true,
+    "exec_owner_substitution_refused_before_consume_backend": true,
+    "exec_owner_changed_environment_replay_refused_by_real_pdp_join": true,
+    "exec_owner_real_cli_consumes_before_fixture_backend": true,
+    "exec_owner_actual_child_excludes_parent_credentials": true,
+    "exec_owner_digest_preserved_by_real_evaluator": true
+  },
+  "flex_auth_binary_sha256": "c7a1f35aa2cd7cf2733272923ace7fc4b4e55171db4ef8f3d0d6629183dcf1fa",
+  "producer_input_sha256": {
+    "policy_package.md": "657fa9312c9dcabee059ec31c89ee13396fe9aa54d852edc9e6559a74bbc139a",
+    "registry_snapshot.json": "37fba44ec0e0fd9b1e17a05ad1b7e4f9bb6ec9e0fc0bb3133e8af2ac6f832d7c"
+  },
+  "exec_owner_scope": "Synthetic recipient/backend with real KeyCape, Approval Engine, Flex Auth and Secrets Engine CLI; not native custody or human approval proof",
+  "status": "passed",
+  "cleanup_complete": true,
+  "finished_at": "2026-09-10T07:16:09.750288+00:00"
+}