Publish Layerfault deep challenge LF-CH-PROV-0003

CHALLENGE_ORACLE.json

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+{
+  "attack_surface": [
+    "provenance-integrity"
+  ],
+  "control_type": "positive",
+  "corpus_id": "LF-CH-PROV-0003",
+  "difficulty": "hard",
+  "expected_decision": "BLOCK",
+  "ground_truth": "synthetic-generated",
+  "layerfault_rule_expectations": {
+    "candidate_rules": [],
+    "expected_rules": [],
+    "must_not_rules": []
+  },
+  "oracle_ids": [
+    "LF-ORACLE-PROV-0003"
+  ],
+  "related_cases": [],
+  "repo_name": "provenance-missing-declared-file",
+  "safe_fixture": true,
+  "schema": 2,
+  "severity": "medium",
+  "techniques": [
+    "missing",
+    "declared",
+    "file"
+  ],
+  "transformations": []
+}

FIXTURE_LAYOUT.json

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+{
+  "artifacts": [
+    "model.safetensors",
+    "SHA256_DECLARED.json"
+  ],
+  "family": "provenance",
+  "note": "All content is synthetic and inert. Do not treat this as a production model.",
+  "repo_name": "provenance-missing-declared-file"
+}

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "challenge": {
+    "attack_surface": [
+      "provenance-integrity"
+    ],
+    "control_type": "positive",
+    "difficulty": "hard",
+    "expected_decision": "BLOCK",
+    "oracle_ids": [
+      "LF-ORACLE-PROV-0003"
+    ],
+    "related_cases": [],
+    "severity": "medium",
+    "techniques": [
+      "missing",
+      "declared",
+      "file"
+    ],
+    "transformations": []
+  },
+  "corpus_id": "LF-CH-PROV-0003",
+  "description": "Provenance missing declared file.",
+  "expected_rules": [],
+  "generator": "challenges.generate_challenge",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [],
+  "repo_name": "provenance-missing-declared-file",
+  "repo_type": "model",
+  "safe_fixture": true,
+  "safety": "inert/canary-only",
+  "schema": 1,
+  "validation": {
+    "kind": "verify-package",
+    "target": "."
+  }
+}

README.md

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+---
+license: apache-2.0
+tags:
+- layerfault
+- security-research
+- model-security
+- synthetic
+- adversarial-testing
+extra_gated_prompt: >-
+  This repository is a synthetic security-test artifact from the Layerfault
+  corpus. It intentionally contains adversarial characteristics (e.g.
+  suspicious pickle opcodes, executable-format smuggling, prompt-injection
+  strings) designed to exercise security scanner detection rules. It is
+  **not** a usable ML model and must never be loaded or executed outside an
+  isolated scanner-testing environment. By accepting, you confirm you
+  understand this repository is a test fixture, not production model
+  weights.
+extra_gated_button_content: I understand this is a security test fixture and accept the risk
+gated: auto
+---
+
+# provenance-missing-declared-file
+
+> **SECURITY TEST ARTIFACT: DO NOT USE AS A PRODUCTION MODEL**
+
+This repository is part of the Layerfault synthetic security corpus.
+It is deliberately constructed to contain security-relevant characteristics for scanner testing.
+
+**Corpus ID:** `LF-CH-PROV-0003`
+
+## Purpose
+
+Provenance missing declared file.
+
+## Direct expected Layerfault rules
+
+- None; this repository is a control/comparison input.
+
+## Candidate rules
+
+These are deliberately plausible targets that remain marked as candidates until the exact
+Layerfault build used for certification confirms them.
+
+- None
+
+## Negative-control rules
+
+These should remain silent for this corpus item.
+
+- None
+
+## Safety
+
+The corpus uses fake secrets, loopback/`.invalid` network destinations, harmless marker output,
+and synthetic model behavior only. It is intended for static scanning and isolated security testing.
+
+## Challenge classification
+
+- Severity: **medium**
+- Difficulty: **hard**
+- Expected admission decision: **BLOCK**
+- Control type: **positive**
+- Attack surface: provenance-integrity
+- Techniques: missing, declared, file
+- Transformations: none
+
+### Ground-truth oracle IDs
+
+- `LF-ORACLE-PROV-0003`
+
+These oracle IDs describe synthetic ground truth. They do not claim that a
+matching Layerfault detector already exists. A challenge may intentionally expose
+a scanner blind spot and remain unmapped until the detector is implemented.

SHA256SUMS.json

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+[
+  {
+    "path": "CHALLENGE_ORACLE.json",
+    "sha256": "01b6818cfec8187f980bc5320e79bfbbe6057f782c9f94b0dbb554364d815c3a",
+    "size": 613
+  },
+  {
+    "path": "FIXTURE_LAYOUT.json",
+    "sha256": "bef60e93fb382e54491e8399d154565210f2e55cc13969a20b9a42e7c3a8bc0d",
+    "size": 244
+  },
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "b5d607234d0575a20d6f0ec7a57dd71b196d47a93d4ae22c788b7c2e608d746e",
+    "size": 852
+  },
+  {
+    "path": "README.md",
+    "sha256": "ee3be6479bd928f7e23b39302ed40f3fd92dd4aeab80cf1112c4a1d8c690be4e",
+    "size": 2209
+  },
+  {
+    "path": "SHA256_DECLARED.json",
+    "sha256": "cbaa3f738a4d1174d9431f991b34afa672cdd4a9793d8bfbb0f4e648817ddb17",
+    "size": 179
+  },
+  {
+    "path": "model.safetensors",
+    "sha256": "f8ca6e7765b461685ef1034fe6bbac8a0cfc3f79802ab1124b53701d844c71e2",
+    "size": 184
+  }
+]

SHA256_DECLARED.json

@@ -0,0 +1,4 @@
+{
+  "missing.bin": "1111111111111111111111111111111111111111111111111111111111111111",
+  "model.safetensors": "f8ca6e7765b461685ef1034fe6bbac8a0cfc3f79802ab1124b53701d844c71e2"
+}

model.safetensors

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f8ca6e7765b461685ef1034fe6bbac8a0cfc3f79802ab1124b53701d844c71e2
+size 184