{
  "schema": "nova-forge-public-downloads/v1",
  "surface": "official-site",
  "stage": "pre-vf",
  "available": false,
  "policy": "verified-artifacts-only",
  "required_evidence": [
    "identity",
    "integrity-sha256",
    "provenance",
    "signature-when-required"
  ],
  "artifact_contract": {
    "required_fields_when_published": [
      "id",
      "name",
      "version",
      "filename",
      "size_bytes",
      "sha256",
      "provenance",
      "download_path"
    ],
    "download_path_policy": "same-origin-public-surface-only",
    "sha256_format": "64-lowercase-hex",
    "signature_status_required": true
  },
  "artifacts": []
}