diff --git a/contracts/OMN-17943.yaml b/contracts/OMN-17943.yaml
index 96211070b12..6eafca0d2d9 100644
--- a/contracts/OMN-17943.yaml
+++ b/contracts/OMN-17943.yaml
@@ -253,3 +253,11 @@ dod_evidence:
     checks:
       - check_type: "command"
         check_value: "gh pr view 10517 --repo OmniNode-ai/onex_change_control --json number,state,headRefName"
+  - id: "occ-self-bind-pr-10635"
+    description: |-
+      OCC self-bind for PR #10635 — binds this contract to the evidence PR carrying it, by pr_number, so eligibility can resolve a PASS receipt for the evidence PR itself.
+    source: "manual"
+    status: "verified"
+    checks:
+      - check_type: "command"
+        check_value: "gh pr view 10635 --repo OmniNode-ai/onex_change_control --json number,state,headRefName"
diff --git a/contracts/OMN-18900.yaml b/contracts/OMN-18900.yaml
index b9b2168d0b4..39823640f1c 100644
--- a/contracts/OMN-18900.yaml
+++ b/contracts/OMN-18900.yaml
@@ -176,3 +176,11 @@ dod_evidence:
     checks:
       - check_type: "command"
         check_value: "gh pr view 10573 --repo OmniNode-ai/onex_change_control --json number,state"
+  - id: "dod-occ-diff-derived-behavior-proof"
+    description: "PR #3883 on OmniNode-ai/omnibase_infra — diff-derived behavior proof (OMN-16434)."
+    source: "generated"
+    checks:
+      - check_type: "test_passes"
+        check_value: |-
+          uv run pytest tests/ci/test_supplemental_declaration_expiry_omn18863.py tests/integration/migrations/test_dod_verify_runs_omn18900.py tests/unit/scripts/validation/test_application_migration_manifest.py -q
+        cwd: "${OMNI_HOME}/omnibase_infra"
diff --git a/contracts/OMN-18942.yaml b/contracts/OMN-18942.yaml
index b3c07d19bc3..784fd4040cf 100644
--- a/contracts/OMN-18942.yaml
+++ b/contracts/OMN-18942.yaml
@@ -79,3 +79,11 @@ dod_evidence:
     checks:
       - check_type: "command"
         check_value: "gh pr view 10622 --repo OmniNode-ai/onex_change_control --json number,state"
+  - id: "dod-occ-diff-derived-behavior-proof"
+    description: "PR #3901 on OmniNode-ai/omnibase_infra — diff-derived behavior proof (OMN-16434)."
+    source: "generated"
+    checks:
+      - check_type: "test_passes"
+        check_value: |-
+          uv run pytest tests/ci/test_incident_replay_omn18942.py tests/unit/scripts/test_fleet_failure_sink_omn18942.py tests/unit/scripts/test_omninode_system_slack_report.py -q
+        cwd: "${OMNI_HOME}/omnibase_infra"
diff --git a/contracts/OMN-18958.yaml b/contracts/OMN-18958.yaml
index 497a8497631..41375968b03 100644
--- a/contracts/OMN-18958.yaml
+++ b/contracts/OMN-18958.yaml
@@ -71,3 +71,11 @@ dod_evidence:
     checks:
       - check_type: "command"
         check_value: "gh pr view 10619 --repo OmniNode-ai/onex_change_control --json number,state"
+  - id: "dod-occ-diff-derived-behavior-proof"
+    description: "PR #3899 on OmniNode-ai/omnibase_infra — diff-derived behavior proof (OMN-16434)."
+    source: "generated"
+    checks:
+      - check_type: "test_passes"
+        check_value: |-
+          uv run pytest tests/integration/runtime/test_chain_head_identity_seam_omn18389.py tests/unit/runtime/auto_wiring/test_consumer_adopts_wire_identity_omn18958.py -q
+        cwd: "${OMNI_HOME}/omnibase_infra"
diff --git a/contracts/OMN-18960.yaml b/contracts/OMN-18960.yaml
index b913c18edb3..25e1e34d83b 100644
--- a/contracts/OMN-18960.yaml
+++ b/contracts/OMN-18960.yaml
@@ -79,3 +79,11 @@ dod_evidence:
     checks:
       - check_type: "command"
         check_value: "gh pr view 10623 --repo OmniNode-ai/onex_change_control --json number,state"
+  - id: "dod-occ-diff-derived-behavior-proof"
+    description: "PR #3902 on OmniNode-ai/omnibase_infra — diff-derived behavior proof (OMN-16434)."
+    source: "generated"
+    checks:
+      - check_type: "test_passes"
+        check_value: |-
+          uv run pytest tests/ci/test_ci_summary_gate.py tests/ci/test_omn18096_ci_bus_overlay_gate_wiring.py -q
+        cwd: "${OMNI_HOME}/omnibase_infra"
diff --git a/contracts/OMN-18961.yaml b/contracts/OMN-18961.yaml
index aeb9ddd6551..6a6b5268f7b 100644
--- a/contracts/OMN-18961.yaml
+++ b/contracts/OMN-18961.yaml
@@ -77,3 +77,10 @@ dod_evidence:
     checks:
       - check_type: "command"
         check_value: "gh pr view 10621 --repo OmniNode-ai/onex_change_control --json number,state"
+  - id: "dod-occ-diff-derived-behavior-proof"
+    description: "PR #2289 on OmniNode-ai/omniclaude — diff-derived behavior proof (OMN-16434)."
+    source: "generated"
+    checks:
+      - check_type: "test_passes"
+        check_value: "uv run pytest tests/hooks/test_session_start_goal_surface.py -q"
+        cwd: "${OMNI_HOME}/omniclaude"
diff --git a/drift/behavior_proof_backfill_refusals.yaml b/drift/behavior_proof_backfill_refusals.yaml
index 74373b961c1..532e53ed13e 100644
--- a/drift/behavior_proof_backfill_refusals.yaml
+++ b/drift/behavior_proof_backfill_refusals.yaml
@@ -38,6 +38,54 @@ refusals:
     judged_at: '2026-09-07T00:27:50Z'
     reason: dod-occ-diff-derived-behavior-proof is already declared or already has a receipt; the backfill
       is idempotent and writes nothing.
+  OMN-16574:
+    decision: REFUSED_NO_PRODUCT_PR
+    judged_against:
+      legacy_binding_receipts: []
+      product_prs: []
+    judged_at: '2026-09-21T05:32:00Z'
+    reason: no `dod-<owner>-<repo>-pr-<n>` item names a product PR, so there is no diff to derive a behavior
+      proof from.
+  OMN-16576:
+    decision: REFUSED_NO_PRODUCT_PR
+    judged_against:
+      legacy_binding_receipts: []
+      product_prs:
+        - OmniNode-ai/omninode_infra#1063
+        - OmniNode-ai/omninode_infra#1498
+    judged_at: '2026-09-21T05:32:00Z'
+    reason: no `dod-<owner>-<repo>-pr-<n>` item names a product PR, so there is no diff to derive a behavior
+      proof from.
+  OMN-16581:
+    decision: REFUSED_NO_BEHAVIOUR_IN_DIFF
+    judged_against:
+      legacy_binding_receipts: []
+      product_prs:
+        - OmniNode-ai/omnibase_core#1600
+    judged_at: '2026-09-21T05:31:59Z'
+    reason: the merged diff of OmniNode-ai/omnibase_core#1600 carries no pytest collection target across
+      2 changed file(s). Naming any other test would assert behavior this PR never demonstrated; nothing
+      is minted.
+  OMN-16582:
+    decision: REFUSED_NO_BEHAVIOUR_IN_DIFF
+    judged_against:
+      legacy_binding_receipts: []
+      product_prs:
+        - OmniNode-ai/omnibase_infra#2906
+    judged_at: '2026-09-21T05:31:57Z'
+    reason: the merged diff of OmniNode-ai/omnibase_infra#2906 carries no pytest collection target across
+      3 changed file(s). Naming any other test would assert behavior this PR never demonstrated; nothing
+      is minted.
+  OMN-16585:
+    decision: REFUSED_NO_BEHAVIOUR_IN_DIFF
+    judged_against:
+      legacy_binding_receipts: []
+      product_prs:
+        - OmniNode-ai/omniintelligence#850
+    judged_at: '2026-09-21T05:31:53Z'
+    reason: the merged diff of OmniNode-ai/omniintelligence#850 carries no pytest collection target across
+      67 changed file(s). Naming any other test would assert behavior this PR never demonstrated; nothing
+      is minted.
   OMN-16592:
     decision: REFUSED_NO_PRODUCT_PR
     judged_against:
@@ -1707,4 +1755,14 @@ refusals:
     reason: the merged diff of OmniNode-ai/omniclaude#2271 carries no pytest collection target across
       1 changed file(s). Naming any other test would assert behavior this PR never demonstrated; nothing
       is minted.
+  OMN-18921:
+    decision: REFUSED_NO_BEHAVIOUR_IN_DIFF
+    judged_against:
+      legacy_binding_receipts: []
+      product_prs:
+        - OmniNode-ai/onex_change_control#10602
+    judged_at: '2026-09-21T05:31:10Z'
+    reason: the merged diff of OmniNode-ai/onex_change_control#10602 carries no pytest collection target
+      across 3 changed file(s). Naming any other test would assert behavior this PR never demonstrated;
+      nothing is minted.
 schema_version: 1.0.0
diff --git a/drift/dod_receipts/OMN-17943/occ-self-bind-pr-10635/command.yaml b/drift/dod_receipts/OMN-17943/occ-self-bind-pr-10635/command.yaml
new file mode 100644
index 00000000000..f3611d09a0e
--- /dev/null
+++ b/drift/dod_receipts/OMN-17943/occ-self-bind-pr-10635/command.yaml
@@ -0,0 +1,21 @@
+---
+actual_output: 'PASS: OCC PR #10635 on OmniNode-ai/onex_change_control reads back OPEN at branch auto/behavior-proof-backfill-35564768740,
+  tip 39e11b10dca180555be6324b14bb23a8ffb6003a. This receipt binds OMN-17943 to the evidence PR carrying
+  it; it makes no claim about the evidence in that PR, which its own receipts carry.'
+branch: auto/behavior-proof-backfill-35564768740
+check_type: command
+check_value: gh pr view 10635 --repo OmniNode-ai/onex_change_control --json number,state,headRefName
+commit_sha: 39e11b10dca180555be6324b14bb23a8ffb6003a
+contract_entry_sha256: sha256:ac8f9525147f99cd759907dcd4292c9b78fe7b460ac56554c4da3aca70224da5
+evidence_item_id: occ-self-bind-pr-10635
+exit_code: 0
+pr_number: 10635
+probe_command: gh pr view 10635 --repo OmniNode-ai/onex_change_control --json number,state,headRefName
+probe_stdout: '{"headRefName": "auto/behavior-proof-backfill-35564768740", "number": 10635, "state": "OPEN"}'
+run_timestamp: '2026-09-21T05:32:13Z'
+runner: omnimarket-ci occ-behavior-proof-backfill
+schema_version: 1.0.0
+status: PASS
+ticket_id: OMN-17943
+verifier: github-actions occ-pr-readback
+working_dir: null
diff --git a/drift/dod_receipts/OMN-18900/dod-occ-diff-derived-behavior-proof/test_passes.yaml b/drift/dod_receipts/OMN-18900/dod-occ-diff-derived-behavior-proof/test_passes.yaml
new file mode 100644
index 00000000000..78ad7f2008d
--- /dev/null
+++ b/drift/dod_receipts/OMN-18900/dod-occ-diff-derived-behavior-proof/test_passes.yaml
@@ -0,0 +1,25 @@
+---
+actual_output: 'PENDING: the declared targets are derived from the merged diff of OmniNode-ai/omnibase_infra#3883;
+  the PR''s own CI at head dc0f6ff57caa81fb68648eabe0d306a11941a4d2 — which is this receipt''s commit_sha,
+  the code state the recorded check ran against — concluded UNREADABLE; it subsequently merged as 0812e9741187335c40e873b47773b05108a117c8,
+  a different tree no check here was run against. This receipt records that observation — it does not
+  claim the pytest run was executed by the backfill. Run: https://github.com/OmniNode-ai/omnimarket/actions/runs/35564768740'
+branch: jonah/omn-18900-vendor-dod-verdict-migrations
+check_type: test_passes
+check_value: uv run pytest tests/ci/test_supplemental_declaration_expiry_omn18863.py tests/integration/migrations/test_dod_verify_runs_omn18900.py
+  tests/unit/scripts/validation/test_application_migration_manifest.py -q
+commit_sha: dc0f6ff57caa81fb68648eabe0d306a11941a4d2
+contract_entry_sha256: sha256:98b0ce109d3dbc35fa4080009e593bbb3fc3dd1a0dc087c5da89209b716b7429
+evidence_item_id: dod-occ-diff-derived-behavior-proof
+exit_code: 0
+pr_number: 3883
+probe_command: gh api repos/OmniNode-ai/omnibase_infra/commits/dc0f6ff57caa81fb68648eabe0d306a11941a4d2/check-runs
+  --paginate --jq '[.check_runs[]|select(.conclusion|IN("success","skipped","neutral")|not)]|length'
+probe_stdout: ''
+run_timestamp: '2026-09-21T05:31:17Z'
+runner: omnimarket-ci occ-behavior-proof-backfill
+schema_version: 1.0.0
+status: PENDING
+ticket_id: OMN-18900
+verifier: github-actions merged-pr diff derivation
+working_dir: null
diff --git a/drift/dod_receipts/OMN-18942/dod-occ-diff-derived-behavior-proof/test_passes.yaml b/drift/dod_receipts/OMN-18942/dod-occ-diff-derived-behavior-proof/test_passes.yaml
new file mode 100644
index 00000000000..90eda3b59dd
--- /dev/null
+++ b/drift/dod_receipts/OMN-18942/dod-occ-diff-derived-behavior-proof/test_passes.yaml
@@ -0,0 +1,25 @@
+---
+actual_output: 'PENDING: the declared targets are derived from the merged diff of OmniNode-ai/omnibase_infra#3901;
+  the PR''s own CI at head f5f9bfdf5fbdae068295be3b6e878a66ee330e53 — which is this receipt''s commit_sha,
+  the code state the recorded check ran against — concluded UNREADABLE; it subsequently merged as 0470dfd2164289f847663f3c4409c522f02a655e,
+  a different tree no check here was run against. This receipt records that observation — it does not
+  claim the pytest run was executed by the backfill. Run: https://github.com/OmniNode-ai/omnimarket/actions/runs/35564768740'
+branch: jonah/omn-18942-fleet-failure-sink
+check_type: test_passes
+check_value: uv run pytest tests/ci/test_incident_replay_omn18942.py tests/unit/scripts/test_fleet_failure_sink_omn18942.py
+  tests/unit/scripts/test_omninode_system_slack_report.py -q
+commit_sha: f5f9bfdf5fbdae068295be3b6e878a66ee330e53
+contract_entry_sha256: sha256:bd8b2fb1fbb3ed24dced81dde94391dd1f82dcb734dbcff599615be01788732f
+evidence_item_id: dod-occ-diff-derived-behavior-proof
+exit_code: 0
+pr_number: 3901
+probe_command: gh api repos/OmniNode-ai/omnibase_infra/commits/f5f9bfdf5fbdae068295be3b6e878a66ee330e53/check-runs
+  --paginate --jq '[.check_runs[]|select(.conclusion|IN("success","skipped","neutral")|not)]|length'
+probe_stdout: ''
+run_timestamp: '2026-09-21T05:31:09Z'
+runner: omnimarket-ci occ-behavior-proof-backfill
+schema_version: 1.0.0
+status: PENDING
+ticket_id: OMN-18942
+verifier: github-actions merged-pr diff derivation
+working_dir: null
diff --git a/drift/dod_receipts/OMN-18958/dod-occ-diff-derived-behavior-proof/test_passes.yaml b/drift/dod_receipts/OMN-18958/dod-occ-diff-derived-behavior-proof/test_passes.yaml
new file mode 100644
index 00000000000..722ecb04a4a
--- /dev/null
+++ b/drift/dod_receipts/OMN-18958/dod-occ-diff-derived-behavior-proof/test_passes.yaml
@@ -0,0 +1,25 @@
+---
+actual_output: 'PENDING: the declared targets are derived from the merged diff of OmniNode-ai/omnibase_infra#3899;
+  the PR''s own CI at head 58ce4c03aa959eb9bda6f7066ae6d56a7c17e938 — which is this receipt''s commit_sha,
+  the code state the recorded check ran against — concluded UNREADABLE; it subsequently merged as 08db8946ec2140ded5e20c89d24f463cf92616a2,
+  a different tree no check here was run against. This receipt records that observation — it does not
+  claim the pytest run was executed by the backfill. Run: https://github.com/OmniNode-ai/omnimarket/actions/runs/35564768740'
+branch: jonah/omn-18958-consumer-adopts-wire-identity
+check_type: test_passes
+check_value: uv run pytest tests/integration/runtime/test_chain_head_identity_seam_omn18389.py tests/unit/runtime/auto_wiring/test_consumer_adopts_wire_identity_omn18958.py
+  -q
+commit_sha: 58ce4c03aa959eb9bda6f7066ae6d56a7c17e938
+contract_entry_sha256: sha256:3f9177ef6a86861b75b609a43853302521b65d236fbdd6f89a8fc0d12ad14c88
+evidence_item_id: dod-occ-diff-derived-behavior-proof
+exit_code: 0
+pr_number: 3899
+probe_command: gh api repos/OmniNode-ai/omnibase_infra/commits/58ce4c03aa959eb9bda6f7066ae6d56a7c17e938/check-runs
+  --paginate --jq '[.check_runs[]|select(.conclusion|IN("success","skipped","neutral")|not)]|length'
+probe_stdout: ''
+run_timestamp: '2026-09-21T05:31:07Z'
+runner: omnimarket-ci occ-behavior-proof-backfill
+schema_version: 1.0.0
+status: PENDING
+ticket_id: OMN-18958
+verifier: github-actions merged-pr diff derivation
+working_dir: null
diff --git a/drift/dod_receipts/OMN-18960/dod-occ-diff-derived-behavior-proof/test_passes.yaml b/drift/dod_receipts/OMN-18960/dod-occ-diff-derived-behavior-proof/test_passes.yaml
new file mode 100644
index 00000000000..7354966849e
--- /dev/null
+++ b/drift/dod_receipts/OMN-18960/dod-occ-diff-derived-behavior-proof/test_passes.yaml
@@ -0,0 +1,25 @@
+---
+actual_output: 'PENDING: the declared targets are derived from the merged diff of OmniNode-ai/omnibase_infra#3902;
+  the PR''s own CI at head c89ec8bc993f3a702fcc886df815946ed228fae4 — which is this receipt''s commit_sha,
+  the code state the recorded check ran against — concluded UNREADABLE; it subsequently merged as 15f6a804b3c3e895ba4a2d588b6b500d2247cf83,
+  a different tree no check here was run against. This receipt records that observation — it does not
+  claim the pytest run was executed by the backfill. Run: https://github.com/OmniNode-ai/omnimarket/actions/runs/35564768740'
+branch: jonah/omn-18960-umbrella-external-default-deny
+check_type: test_passes
+check_value: uv run pytest tests/ci/test_ci_summary_gate.py tests/ci/test_omn18096_ci_bus_overlay_gate_wiring.py
+  -q
+commit_sha: c89ec8bc993f3a702fcc886df815946ed228fae4
+contract_entry_sha256: sha256:a5b8eadb303d1735b301658c7b8295c4e6109de5d0f29cfce9c3bd981cf325d5
+evidence_item_id: dod-occ-diff-derived-behavior-proof
+exit_code: 0
+pr_number: 3902
+probe_command: gh api repos/OmniNode-ai/omnibase_infra/commits/c89ec8bc993f3a702fcc886df815946ed228fae4/check-runs
+  --paginate --jq '[.check_runs[]|select(.conclusion|IN("success","skipped","neutral")|not)]|length'
+probe_stdout: ''
+run_timestamp: '2026-09-21T05:31:05Z'
+runner: omnimarket-ci occ-behavior-proof-backfill
+schema_version: 1.0.0
+status: PENDING
+ticket_id: OMN-18960
+verifier: github-actions merged-pr diff derivation
+working_dir: null
diff --git a/drift/dod_receipts/OMN-18961/dod-occ-diff-derived-behavior-proof/test_passes.yaml b/drift/dod_receipts/OMN-18961/dod-occ-diff-derived-behavior-proof/test_passes.yaml
new file mode 100644
index 00000000000..1787884a2ee
--- /dev/null
+++ b/drift/dod_receipts/OMN-18961/dod-occ-diff-derived-behavior-proof/test_passes.yaml
@@ -0,0 +1,24 @@
+---
+actual_output: 'PENDING: the declared targets are derived from the merged diff of OmniNode-ai/omniclaude#2289;
+  the PR''s own CI at head d7898148920043c8a666f62fbe5fe3480a030b5d — which is this receipt''s commit_sha,
+  the code state the recorded check ran against — concluded UNREADABLE; it subsequently merged as 6e84849ed3ea38dcbb6b75330cd4b49e1a8fa05b,
+  a different tree no check here was run against. This receipt records that observation — it does not
+  claim the pytest run was executed by the backfill. Run: https://github.com/OmniNode-ai/omnimarket/actions/runs/35564768740'
+branch: jonah/omn-18961-session-goal-deferral
+check_type: test_passes
+check_value: uv run pytest tests/hooks/test_session_start_goal_surface.py -q
+commit_sha: d7898148920043c8a666f62fbe5fe3480a030b5d
+contract_entry_sha256: sha256:0b2feedb88b00955be214f25b18097fa6b2143afa702802a9b6811e1943d03b1
+evidence_item_id: dod-occ-diff-derived-behavior-proof
+exit_code: 0
+pr_number: 2289
+probe_command: gh api repos/OmniNode-ai/omniclaude/commits/d7898148920043c8a666f62fbe5fe3480a030b5d/check-runs
+  --paginate --jq '[.check_runs[]|select(.conclusion|IN("success","skipped","neutral")|not)]|length'
+probe_stdout: ''
+run_timestamp: '2026-09-21T05:31:04Z'
+runner: omnimarket-ci occ-behavior-proof-backfill
+schema_version: 1.0.0
+status: PENDING
+ticket_id: OMN-18961
+verifier: github-actions merged-pr diff derivation
+working_dir: null