{
  "tool_id": "art-599-gleif-snapshot-digest",
  "tool_version": "1.0.0",
  "display_name": "GLEIF Snapshot Digest",
  "mcp_name": "digest_gleif_snapshot",
  "mandate_type": "cryptographic_mandate",
  "wave": 99,
  "gpu": false,
  "url": "https://ainumbers.co/chaingraph/art-599-gleif-snapshot-digest.html",
  "description": "Hash-pins a pasted GLEIF Golden Copy record or file segment as of a caller-stated capture time, so a later reader can tell whether the entity data in front of them is the same data a pack was built from. The digest is taken over the raw pasted bytes, never a parsed, trimmed or re-serialized form, so anyone holding the original file can reproduce it. Reads LastUpdateDate only from the unambiguous CDF XML element; for a CSV row the caller states the value and the output records which of the two it came from. Validates LEI syntax as a courtesy flag (ISO 17442 mod-97, the same check art-246 carries), never as a blocking gate. Zero network: the GLEIF Golden Copy URL is named for the reader, never fetched. This records that these exact bytes were pinned at the stated time. It is not a statement that the record is still current, not a validation of the entity data, and carries no ongoing monitoring duty.",
  "input_schema_ref": "chaingraph/art-599-gleif-snapshot-digest.html#manifest",
  "consumes": [],
  "feeds": [],
  "status": "live",
  "conformance_fixtures": true,
  "compute_capability": "server",
  "compute_images": [
    {
      "system": "sha256-source",
      "image_id": "sha256:0b3902db12128174f906bfc436ef14f2415464d9bd58aa2215b3e5e2d1be2a7b",
      "valid_from": "2026-07-10"
    },
    {
      "system": "risc0",
      "image_id": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6",
      "valid_from": "2026-08-13"
    }
  ],
  "export_capability": [
    "json"
  ],
  "compute_proof": {
    "type": "ZkVmReceipt",
    "system": "risc0",
    "receiptFormat": "groth16-bn254",
    "imageId": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6",
    "seal": "Dd4RZ+HvNf2h14EOdRuWCiRjk0H/OXm4sfs1J2qTvrYnXNZq9h9GVFt140Zh7hr3bBABlzvvJbLM31+OZwpvXSoJYZUZeiOE87QElxkpR9LoB1h/DOdD8jeE9Z3+AyWxCEhkp6rx3eCRnW6tKh/19KzypSMFdXjMb/K+bF6hXisEwA0u31L7M8ivvIIhr9of8REnrbbeuYT3+OQ1p2aHmhLDNgV9j+XyGaMpWL069kgyQ+i0GPUGqjE8i2yF890gE3Uz3P+RUdWfghMTPy9Oqy+KVQBvsM3hCZy5nCFeuygcrAObxidH3Z6AYfP7TnlNJozk4p5a5dUUbVax+dnMww==",
    "journal": {
      "chaingraph_version": "0.4.0",
      "kernel_digest": "sha256:0b3902db12128174f906bfc436ef14f2415464d9bd58aa2215b3e5e2d1be2a7b",
      "output": {
        "captured_at": "2026-08-11T00:00:00Z",
        "golden_copy_as_of": "2026-06-30",
        "last_update_date": "2026-06-30T12:00:00.000Z",
        "last_update_date_found": true,
        "last_update_date_source": "record_xml",
        "lei": "5493001KJTIIGC8Y1R12",
        "lei_checksum_note": null,
        "lei_checksum_valid": true,
        "licence": "CC0 1.0 Universal -- GLEIF Open Data (confirmed: gleif.org/en/meta/lei-data-terms-of-use)",
        "pii_note": "LEI reference data is PUBLIC registry data (GLEIF, gleif.org). This tool hashes the pasted bytes and reads no field other than LastUpdateDate. No PII processed -- use synthetic or public registry data only.",
        "scope_note": "This records that these exact bytes were pinned at the stated capture time. It is not a statement that the record is still current, not a validation of the entity data, and carries no ongoing monitoring duty.",
        "snapshot_captured": true,
        "source_bytes": 242,
        "source_format": "xml",
        "source_sha256": "b7bf7a7c7b834d96f1f8f0ba2bb0185e65290e78cfc7e4406000477543591270",
        "source_url": "https://www.gleif.org/en/lei-data/gleif-golden-copy/download-the-golden-copy",
        "verification_path": "Compare source_sha256 against a fresh GLEIF Golden Copy download for the same as-of date. GLEIF publishes three golden-copy sets plus four delta files daily, so re-derive the digest from the file itself rather than trusting this record."
      }
    }
  }
}