diff --git a/contracts/OMN-20375.yaml b/contracts/OMN-20375.yaml
index 317bb9a5240..2e3556a9918 100644
--- a/contracts/OMN-20375.yaml
+++ b/contracts/OMN-20375.yaml
@@ -48,3 +48,21 @@ dod_evidence:
       - check_type: "command"
         check_value: |-
           gh api -H 'Accept: application/vnd.github.raw' "repos/OmniNode-ai/omniclaude/contents/.github/workflows/merge-group-pr-scoped-contexts.yml?ref=502bf91655e6a76220a0112923ac98d460959b9d" | grep -cF 'name: Merge Group PR-Scoped Contexts'
+  - id: "dod-OmniNode-ai-omnibase_core-pr-1853-ci"
+    description: "PR #1853 on OmniNode-ai/omnibase_core — product diff scope check (OMN-14425)."
+    source: "generated"
+    checks:
+      - check_type: "command"
+        check_value: "gh pr view 1853 --repo OmniNode-ai/omnibase_core --json files"
+  - id: "dod-OmniNode-ai-omnibase_core-pr-1853"
+    description: >-
+      PR #1853 on OmniNode-ai/omnibase_core, hand-authored companion (OMN-15247): the PR advances the
+      Receipt Gate validator checkout in receipt-gate.yml to 50f790aacb515cdc78290a4ff73cb18f2b2cc3e3,
+      the first omnibase_core commit whose ModelDodReceipt declares artifact_sha256. The check reads that
+      file at the PR commit 0639d7cb33525e8440c826433d45586f3b5d2250 and counts the lines containing that
+      sha: 1 there.
+    source: "generated"
+    checks:
+      - check_type: "command"
+        check_value: |-
+          gh api -H 'Accept: application/vnd.github.raw' "repos/OmniNode-ai/omnibase_core/contents/.github/workflows/receipt-gate.yml?ref=0639d7cb33525e8440c826433d45586f3b5d2250" | grep -cF '50f790aacb515cdc78290a4ff73cb18f2b2cc3e3'
diff --git a/drift/dod_receipts/OMN-20375/dod-OmniNode-ai-omnibase_core-pr-1853-ci/command.yaml b/drift/dod_receipts/OMN-20375/dod-OmniNode-ai-omnibase_core-pr-1853-ci/command.yaml
new file mode 100644
index 00000000000..3ca0cd2a921
--- /dev/null
+++ b/drift/dod_receipts/OMN-20375/dod-OmniNode-ai-omnibase_core-pr-1853-ci/command.yaml
@@ -0,0 +1,24 @@
+---
+schema_version: 1.0.0
+ticket_id: OMN-20375
+evidence_item_id: dod-OmniNode-ai-omnibase_core-pr-1853-ci
+check_type: command
+check_value: gh pr view 1853 --repo OmniNode-ai/omnibase_core --json files
+contract_sha256: 41552d5206d09dd9d5ac841f893137d845ef2f534aa6bad37040ee97faa3b7ac
+contract_entry_sha256: sha256:785fd0205f4b3b273a82563e414ed748e5bd49d3afed8357c0fe46043c891ae9
+status: PASS
+run_timestamp: '2026-10-02T19:05:38Z'
+commit_sha: 0639d7cb33525e8440c826433d45586f3b5d2250
+runner: receipt-pin-bootstrap-2a21
+verifier: occ-probe-capture-v1
+probe_command: gh pr view 1853 --repo OmniNode-ai/omnibase_core --json files
+probe_stdout: '{"files":[{"path":".github/workflows/receipt-gate.yml","additions":14,"deletions":1,"changeType":"MODIFIED"},{"path":"tests/ci/test_receipt_gate_validator_pin_omn20132.py","additions":27,"deletions":10,"changeType":"MODIFIED"}]}'
+actual_output: 'PASS: dod-OmniNode-ai-omnibase_core-pr-1853-ci for OMN-20375 from OmniNode-ai/omnibase_core#1853
+  at 0639d7cb33525e8440c826433d45586f3b5d2250 (hand-authored per OMN-15247)'
+exit_code: 0
+pr_number: 1853
+branch: fix/OMN-20375-receipt-gate-validator-pin-artifact-sha256
+duration_ms: 592
+artifact_sha256:
+  - sha256:68f1466864a9d04982c3e99ed6da0cc139b994f7fcf843bd1c53574fc658452d
+  - sha256:98f99e971475059bce9037c693ec7c8e5dddf7e87714a62e6ccfe864ebb7a32a
diff --git a/drift/dod_receipts/OMN-20375/dod-OmniNode-ai-omnibase_core-pr-1853/command.yaml b/drift/dod_receipts/OMN-20375/dod-OmniNode-ai-omnibase_core-pr-1853/command.yaml
new file mode 100644
index 00000000000..c715d4a67e7
--- /dev/null
+++ b/drift/dod_receipts/OMN-20375/dod-OmniNode-ai-omnibase_core-pr-1853/command.yaml
@@ -0,0 +1,26 @@
+---
+schema_version: 1.0.0
+ticket_id: OMN-20375
+evidence_item_id: dod-OmniNode-ai-omnibase_core-pr-1853
+check_type: command
+check_value: 'gh api -H ''Accept: application/vnd.github.raw'' "repos/OmniNode-ai/omnibase_core/contents/.github/workflows/receipt-gate.yml?ref=0639d7cb33525e8440c826433d45586f3b5d2250"
+  | grep -cF ''50f790aacb515cdc78290a4ff73cb18f2b2cc3e3'''
+contract_sha256: 41552d5206d09dd9d5ac841f893137d845ef2f534aa6bad37040ee97faa3b7ac
+contract_entry_sha256: sha256:9ae10e8761d8b1af93ca86c196a8014db6745bbd278fdc38ce75cfdb51d3c546
+status: PASS
+run_timestamp: '2026-10-02T19:05:40Z'
+commit_sha: 0639d7cb33525e8440c826433d45586f3b5d2250
+runner: receipt-pin-bootstrap-2a21
+verifier: occ-probe-capture-v1
+probe_command: 'gh api -H ''Accept: application/vnd.github.raw'' "repos/OmniNode-ai/omnibase_core/contents/.github/workflows/receipt-gate.yml?ref=0639d7cb33525e8440c826433d45586f3b5d2250"
+  | grep -cF ''50f790aacb515cdc78290a4ff73cb18f2b2cc3e3'''
+probe_stdout: '1'
+actual_output: 'PASS: dod-OmniNode-ai-omnibase_core-pr-1853 for OMN-20375 from OmniNode-ai/omnibase_core#1853
+  at 0639d7cb33525e8440c826433d45586f3b5d2250 (hand-authored per OMN-15247)'
+exit_code: 0
+pr_number: 1853
+branch: fix/OMN-20375-receipt-gate-validator-pin-artifact-sha256
+duration_ms: 408
+artifact_sha256:
+  - sha256:6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
+  - sha256:a7ce5c02368eb0884fed41f8904937233102eb2d9dc263f485be67c5e7df42e4
diff --git a/drift/occ_bindings/OMN-20375/occ-self-bind-pr-12396/command.yaml b/drift/occ_bindings/OMN-20375/occ-self-bind-pr-12396/command.yaml
new file mode 100644
index 00000000000..94701f3936a
--- /dev/null
+++ b/drift/occ_bindings/OMN-20375/occ-self-bind-pr-12396/command.yaml
@@ -0,0 +1,18 @@
+---
+schema_version: "1.0.0"
+ticket_id: "OMN-20375"
+evidence_item_id: "occ-self-bind-pr-12396"
+check_type: "command"
+check_value: "gh pr view 12396 --repo OmniNode-ai/onex_change_control --json number,state,headRefName"
+contract_sha256: "sha256:41552d5206d09dd9d5ac841f893137d845ef2f534aa6bad37040ee97faa3b7ac"
+status: PASS
+run_timestamp: "2026-10-02T19:09:53Z"
+commit_sha: "1c19bd9edce15f36052912c917114f550eeec955"
+runner: "occ-self-bind-mint"
+verifier: "github-pr-readback"
+probe_command: "gh pr view 12396 --repo OmniNode-ai/onex_change_control --json number,state,headRefName"
+probe_stdout: |
+  {"headRefName":"evidence/omn-20375-omnibase-core-1853","number":12396,"state":"OPEN"}
+exit_code: 0
+pr_number: 12396
+branch: "evidence/omn-20375-omnibase-core-1853"