diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index aa8c6bcd..9402b3d6 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -175,6 +175,9 @@ jobs:
     - name: Validate Dotnet Parity Contract
       run: python3 tools/validate_dotnet_parity_contract_v1.py
 
+    - name: Validate Dotnet Provenance Contract
+      run: python3 tools/validate_dotnet_provenance_contract_v1.py
+
 
 
     - name: Build Calibration Priority Backlog
diff --git a/AGENTS.md b/AGENTS.md
index 71d5c604..136edba8 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -100,9 +100,11 @@
 - `docs/WBS_10_DOTNET_MIGRATION_INVENTORY.yaml`: WBS-10 전환 우선순위용 실행 경로 인벤토리.
 - `docs/WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml`: WBS-10 착수용 실행 분해 계획.
 - `docs/WBS_10_DOTNET_PARITY_CONTRACT.yaml`: WBS-10 핵심 계산기 parity 계약.
+- `docs/WBS_10_DOTNET_PROVENANCE_CONTRACT.yaml`: WBS-10 provenance payload 표준 계약.
 - `tools/validate_dotnet_migration_roadmap_v1.py`: WBS-10 상세 로드맵 YAML validator.
 - `tools/validate_dotnet_migration_execution_plan_v1.py`: WBS-10 실행 분해 계획 validator.
 - `tools/validate_dotnet_parity_contract_v1.py`: WBS-10 parity 계약 validator.
+- `tools/validate_dotnet_provenance_contract_v1.py`: WBS-10 provenance 계약 validator.
 - `Temp/snapshot_admin_approval_packet_v1.json`: snapshot admin approval packet export.
 - `Temp/snapshot_admin_approval_packet_v1.md`: snapshot admin approval packet summary.
 - `Temp/`: 실행 결과와 캐시. 라우팅 대상은 아니며 runtime consumer만 읽는다.
diff --git a/docs/ROADMAP_WBS.md b/docs/ROADMAP_WBS.md
index 4d6fed96..fed79981 100644
--- a/docs/ROADMAP_WBS.md
+++ b/docs/ROADMAP_WBS.md
@@ -1469,6 +1469,7 @@ WBS-8.8 (KIS 리팩터) — 독립적 (원격 병행)
 > 실행 분해 계획: [WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml](./WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml)
 > 실행 분해 검증기: `tools/validate_dotnet_migration_execution_plan_v1.py`
 > parity 계약: [WBS_10_DOTNET_PARITY_CONTRACT.yaml](./WBS_10_DOTNET_PARITY_CONTRACT.yaml)
+> provenance 계약: [WBS_10_DOTNET_PROVENANCE_CONTRACT.yaml](./WBS_10_DOTNET_PROVENANCE_CONTRACT.yaml)
 
 > 현황 진단(2026-06-26): .NET 프로젝트는 Python 엔진(41 모듈, 14,500 LOC) 대비 5~10%(~1,400 LOC) 수준.
 > Domain 계산기 6개·데이터 모델 8개·KIS/Naver/Yahoo 클라이언트·PostgreSQL 마이그레이션·Razor Pages 어드민 대시보드 기본 구현 완료.
diff --git a/docs/WBS_10_DOTNET_PROVENANCE_CONTRACT.yaml b/docs/WBS_10_DOTNET_PROVENANCE_CONTRACT.yaml
new file mode 100644
index 00000000..d9470600
--- /dev/null
+++ b/docs/WBS_10_DOTNET_PROVENANCE_CONTRACT.yaml
@@ -0,0 +1,67 @@
+formula_id: WBS_10_DOTNET_PROVENANCE_CONTRACT_V1
+owner: QuantEngine
+status: draft
+goal: "결정/팩터/수집 provenance payload를 표준화한다."
+
+payloads:
+  - payload_id: factor_evidence
+    source: src/dotnet/QuantEngine.Application/Services/DecisionLearningService.cs
+    required_fields:
+      - FactorObservationId
+      - FactorId
+      - FactorVersion
+      - ObservedAt
+      - Gate
+      - Role
+      - SourceName
+      - PayloadJson
+      - ProvenanceJson
+    nullable_fields:
+      - NumericValue
+      - TextValue
+    pass_condition: "factor evidence payload가 누락 없이 기록됨"
+
+  - payload_id: decision_event
+    source: src/dotnet/QuantEngine.Application/Services/DecisionLearningService.cs
+    required_fields:
+      - decisionKey
+      - decidedAt
+      - instrumentId
+      - action
+      - gate
+      - sourceVersion
+    nullable_fields:
+      - score
+      - trace
+      - provenance
+    pass_condition: "decision event payload가 normalized store에 기록됨"
+
+  - payload_id: collection_audit
+    source: src/dotnet/QuantEngine.Application/Models/CollectionExecutionAudit.cs
+    required_fields:
+      - RunId
+      - State
+      - StartedAt
+      - SuccessCount
+      - ErrorCount
+    nullable_fields:
+      - FinishedAt
+      - Message
+    pass_condition: "collection audit payload가 append-only JSONL에 기록됨"
+
+  - payload_id: scheduler_audit
+    source: src/dotnet/QuantEngine.Web/Services/SchedulerModels.cs
+    required_fields:
+      - JobId
+      - RunId
+      - State
+      - StartedAt
+    nullable_fields:
+      - Reason
+      - FinishedAt
+      - ResourceKey
+    pass_condition: "scheduler audit payload가 append-only JSONL에 기록됨"
+
+notes:
+  - "provenance payload는 구조를 표준화하되, 숫자 계산은 하지 않는다."
+  - "LLM은 payload value를 재계산하지 않는다."
diff --git a/spec/41_release_dag.yaml b/spec/41_release_dag.yaml
index 0d324c23..fa86bac8 100644
--- a/spec/41_release_dag.yaml
+++ b/spec/41_release_dag.yaml
@@ -2329,6 +2329,22 @@ dag:
       - Temp/wbs_10_dotnet_parity_contract_v1.json
       strict: true
       timeout_sec: 60
+    validate_dotnet_provenance_contract:
+      artifact_policy: keep
+      cache_key: validate_dotnet_provenance_contract_v1
+      command:
+      - python
+      - tools/validate_dotnet_provenance_contract_v1.py
+      depends_on: []
+      id: validate_dotnet_provenance_contract
+      inputs:
+      - tools/validate_dotnet_provenance_contract_v1.py
+      - docs/WBS_10_DOTNET_PROVENANCE_CONTRACT.yaml
+      note: WBS-10 provenance payload 표준 계약과 필수 payload 표본을 검증한다.
+      outputs:
+      - Temp/wbs_10_dotnet_provenance_contract_v1.json
+      strict: true
+      timeout_sec: 60
     validate_specs:
       artifact_policy: keep
       cache_key: validate_specs_v1
diff --git a/tests/unit/test_validate_dotnet_provenance_contract_v1.py b/tests/unit/test_validate_dotnet_provenance_contract_v1.py
new file mode 100644
index 00000000..bf79a294
--- /dev/null
+++ b/tests/unit/test_validate_dotnet_provenance_contract_v1.py
@@ -0,0 +1,38 @@
+from __future__ import annotations
+
+import json
+import subprocess
+import sys
+from pathlib import Path
+
+
+def test_validate_dotnet_provenance_contract_passes() -> None:
+    root = Path(__file__).resolve().parents[2]
+    proc = subprocess.run(
+        [sys.executable, str(root / "tools" / "validate_dotnet_provenance_contract_v1.py")],
+        cwd=root,
+        capture_output=True,
+        text=True,
+    )
+    assert proc.returncode == 0, proc.stdout + proc.stderr
+    payload = json.loads(proc.stdout)
+    assert payload["gate"] == "PASS"
+
+
+def test_validate_dotnet_provenance_contract_reports_missing_payload() -> None:
+    root = Path(__file__).resolve().parents[2]
+    temp = root / "Temp" / "test_wbs_10_provenance_contract_bad.yaml"
+    temp.write_text(
+        "formula_id: WBS_10_DOTNET_PROVENANCE_CONTRACT_V1\ngoal: 결정/팩터/수집 provenance payload를 표준화한다.\npayloads: []\n",
+        encoding="utf-8",
+    )
+    proc = subprocess.run(
+        [sys.executable, str(root / "tools" / "validate_dotnet_provenance_contract_v1.py"), "--contract", str(temp)],
+        cwd=root,
+        capture_output=True,
+        text=True,
+    )
+    assert proc.returncode != 0
+    payload = json.loads(proc.stdout)
+    assert payload["gate"] == "FAIL"
+    assert "factor_evidence missing" in payload["missing"]
diff --git a/tools/validate_dotnet_provenance_contract_v1.py b/tools/validate_dotnet_provenance_contract_v1.py
new file mode 100644
index 00000000..738f8e6e
--- /dev/null
+++ b/tools/validate_dotnet_provenance_contract_v1.py
@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import argparse
+import json
+from pathlib import Path
+from typing import Any
+
+import yaml
+
+
+REQUIRED_PAYLOADS = {
+    "factor_evidence",
+    "decision_event",
+    "collection_audit",
+    "scheduler_audit",
+}
+
+
+def load_yaml(path: Path) -> dict[str, Any]:
+    if not path.exists():
+        raise FileNotFoundError(path)
+    return yaml.safe_load(path.read_text(encoding="utf-8"))
+
+
+def main(argv: list[str] | None = None) -> int:
+    parser = argparse.ArgumentParser(description="Validate WBS-10 dotnet provenance contract")
+    parser.add_argument("--contract", default="docs/WBS_10_DOTNET_PROVENANCE_CONTRACT.yaml")
+    args = parser.parse_args(argv)
+
+    contract_path = Path(args.contract).resolve()
+    payload: dict[str, Any] = {
+        "formula_id": "WBS_10_DOTNET_PROVENANCE_CONTRACT_V1",
+        "gate": "FAIL",
+        "missing": [],
+        "evidence": {"contract": str(contract_path)},
+    }
+
+    try:
+        data = load_yaml(contract_path)
+    except FileNotFoundError:
+        payload["missing"].append("contract missing")
+        print(json.dumps(payload, ensure_ascii=False, indent=2))
+        return 1
+
+    if data.get("formula_id") != "WBS_10_DOTNET_PROVENANCE_CONTRACT_V1":
+        payload["missing"].append("formula_id")
+    if data.get("goal") != "결정/팩터/수집 provenance payload를 표준화한다.":
+        payload["missing"].append("goal")
+
+    payloads = data.get("payloads") or []
+    payload_ids: set[str] = set()
+    for item in payloads:
+        payload_id = item.get("payload_id", "")
+        payload_ids.add(payload_id)
+        if not item.get("source"):
+            payload["missing"].append(f"{payload_id}.source")
+        if not item.get("required_fields"):
+            payload["missing"].append(f"{payload_id}.required_fields")
+        if "pass_condition" not in item:
+            payload["missing"].append(f"{payload_id}.pass_condition")
+
+    for required in sorted(REQUIRED_PAYLOADS - payload_ids):
+        payload["missing"].append(f"{required} missing")
+
+    payload["gate"] = "PASS" if not payload["missing"] else "FAIL"
+    payload["message"] = (
+        "WBS-10 dotnet provenance contract validation passed."
+        if payload["gate"] == "PASS"
+        else "WBS-10 dotnet provenance contract validation failed."
+    )
+
+    out_path = contract_path.parent.parent / "Temp" / "wbs_10_dotnet_provenance_contract_v1.json"
+    out_path.parent.mkdir(parents=True, exist_ok=True)
+    out_path.write_text(json.dumps(payload, ensure_ascii=False, indent=2), encoding="utf-8")
+    print(json.dumps(payload, ensure_ascii=False, indent=2))
+    return 0 if payload["gate"] == "PASS" else 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())