{
  "tool": "Built-in image generation",
  "imageFile": "empire-state-illustration.png",
  "createdDate": "2026-09-07",
  "referenceRole": "Newly authored GLB three-quarter render used as visual reference",
  "referenceFile": "empire-state-model-three-quarter.png",
  "historicalStatus": "Supplemental interpretive artwork, not documentary evidence or an exact GLB render",
  "generationPrompt": "Use case: historical-scene. Create a polished, detailed maritime reconstruction illustration, landscape 3:2, showing the complete vessel afloat on calm blue-green Lake Huron with distant wooded Michigan shore, soft late afternoon light, realistic timber, rope and canvas textures. The supplied newly authored 3D render controls the silhouette and arrangement. Keep its hull proportions, mast count, funnels, cabins and visible equipment. This is modern interpretive art, not an archival photograph. No text, labels, weapons, invented flags, extra ships or prominent people. No underwater cutaway. Empire State, NOAA-based interpretation of a 136 ft two-masted wooden brigantine associated with the 1862–1877 Thunder Bay vessel. Exactly two masts: three square sails on the forward mast, one gaff mainsail on the after mast, two triangular headsails, six sails total. No third mast, no funnel, no fore gaff sail. Keep the modest aft cabin, bowsprit, boat and covered hatches. The historical rig is disputed, so reproduce this explicitly selected interpretation rather than invent a different rig. Full vessel framed with room around bowsprit and mast tops.",
  "artefactCheck": {
    "date": "2026-09-08",
    "crops": [
      "bow",
      "midships",
      "stern",
      "rig-superstructure"
    ],
    "nativePixelInspection": true,
    "result": "clean",
    "imageSha256": "611267d7723a141471f6e63d51e24d16359a46797d69db88d1b8f03d05b2bb90",
    "observations": "Four native-pixel crops inspected. No weapons, garbled lettering, material mismatch, added masts, disconnected fittings or modern equipment observed. Interpretive details and background scenery are not documentary evidence."
  },
  "imageSha256": "611267d7723a141471f6e63d51e24d16359a46797d69db88d1b8f03d05b2bb90"
}