{
  "schema": "szl.model-source-attestation/v1",
  "observed_at": "2026-07-12T00:27:14Z",
  "model": {
    "id": "SZLHOLDINGS/szl-lambda-gate",
    "repository_type": "model",
    "artifact_kind": "kernel-code-and-configuration",
    "trained_weights_present": false,
    "surrogate": {
      "file": "model.safetensors",
      "config": "config.json",
      "role": "advisory Λ gate-decision surrogate (torch MLP) — kernel Λ remains sole ground truth",
      "fidelity_MEASURED": {
        "fidelity_vs_kernel_heldout": 0.967,
        "recall_GATE_PASS": 0.9912,
        "recall_GATE_FAIL": 0.9469
      },
      "receipt": "TRAINING_RECEIPT.json",
      "reverify": "python scripts/eval.py",
      "weights_status": "UNAVAILABLE",
      "weights_published_in_this_repo": false,
      "expected_sha256_when_published": "79987d9dd53f6c5496569c588ac5203b8d4debda2d8ef9ee7147c43d4740358d",
      "correction_note": "Corrected 2026-08-30. This attestation previously set trained_weights_present=true and carried a sha256 for model.safetensors, config.json, but those files are not present in this repository (HTTP 404 on resolve/main). The training receipt in TRAINING_RECEIPT.json is real and the MEASURED fidelity figures retain their provenance, but the artifact itself was never published here. The digest is retained above as the expected value for when the weights are pushed, not as evidence that they exist."
    },
    "torch_only_note": "kernel is pure-torch; the OPTIONAL surrogate adds safetensors for weight IO"
  },
  "source_of_record": {
    "state": "VERIFIED_HF_SOURCE_OF_RECORD",
    "platform": "huggingface",
    "repository": "SZLHOLDINGS/szl-lambda-gate",
    "artifact_base_revision": "fb0481cfc4046c52898aa83a96b1c118a6372f1a",
    "artifact_base_state": "MEASURED_PRE_ATTESTATION_BASE",
    "artifact_base_url": "https://huggingface.co/SZLHOLDINGS/szl-lambda-gate/tree/fb0481cfc4046c52898aa83a96b1c118a6372f1a",
    "file_count": 10,
    "tree_sha256": "439f5a91386453cc1d6d5248dd5f80915b2c87e1a7d079fda38eef420103e3f2",
    "tree_hash_algorithm": "sha256 of UTF-8 path + NUL + per-file sha256 + LF, sorted by path; .cache excluded"
  },
  "public_github": {
    "state": "VERIFIED_DOWNSTREAM_MIRROR_WITH_DIVERGENCE",
    "repository": "szl-holdings/szl-lambda-gate",
    "repository_url": "https://github.com/szl-holdings/szl-lambda-gate",
    "artifact_mirror_commit": "dd6dd1160999fd0d0f61ee86b7dfce847d91f3fa",
    "artifact_mirror_url": "https://github.com/szl-holdings/szl-lambda-gate/tree/dd6dd1160999fd0d0f61ee86b7dfce847d91f3fa",
    "artifact_mirror_commit_declares": "Mirrors huggingface.co/SZLHOLDINGS/szl-lambda-gate",
    "artifact_scope": {
      "state": "PARTIAL_EXACT_MATCH_WITH_DECLARED_HF_ORIGIN",
      "exact_files": 4,
      "compared_files": 5,
      "exact_paths": [
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        {
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          "github": "torch-ext/szl_lambda_gate/__init__.py",
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          "sha256": "6adf1dc42e7a9e6da914e304da9720438e59c234104e11f3e5ccaa45ecee23b6"
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        {
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          "github": "torch-ext/szl_lambda_gate/layers.py",
          "sha256": "cde2de167d89002ad0cc63a4de205848f14eae0c649c19e2a8a96665a63806f2"
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      "divergent_path": {
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        "hf_sha256": "fc250a19d6a302cf11b9b75fe03ec408ff1039789cceb6d2b948e2827f9c904b",
        "github": "torch-ext/szl_lambda_gate/_lambda.py",
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    "observed_main": {
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      "state": "DIVERGENT_AFTER_HARDENING_AND_CONSOLIDATION",
      "exact_files": 3,
      "compared_files": 5,
      "divergent_paths": [
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        "torch-ext/szl_lambda_gate/_lambda.py"
      ]
    }
  },
  "claims": {
    "github_repository_parity": "NOT_CLAIMED",
    "github_artifact_scope_parity": "NOT_CLAIMED_DUE_TO_RECORDED_DIVERGENCE",
    "reproducible_build": "NOT_CLAIMED",
    "trained_model": "SURROGATE_PRESENT_MEASURED_FIDELITY",
    "serving_process_revision": "NOT_APPLICABLE_REPOSITORY_ARTIFACT"
  },
  "limits": [
    "The GitHub mirror commit declares Hugging Face as its origin but differs in one of five compared artifact files; it is lineage evidence, not parity evidence.",
    "Current GitHub main is not the published Hub artifact and must not be substituted without a new build and verification wave.",
    "The attestation overlay cannot self-embed its resulting Hub commit, so the immutable artifact_base_revision is the measured pre-overlay base.",
    "No .bin, .safetensors, .pt, .pth, .onnx, or .gguf weight artifact was present in the measured base tree."
  ]
}