{
  "tool": "OpenAI built-in image generation",
  "imageFile": "new-orleans-illustration.png",
  "createdDate": "2026-09-08",
  "revisedDate": "2026-09-08",
  "referenceRole": "Revised model render",
  "referenceFile": "new-orleans-model-three-quarter.png",
  "referenceFiles": [
    "new-orleans-model-three-quarter.png"
  ],
  "historicalStatus": "AI-generated interpretive artwork; not documentary evidence or an exact GLB render",
  "generationPrompt": "1844–1849 rebuilt wooden sidewheel steamer New Orleans. One forward mast, TWO narrow paired black funnels, one long LOW cabin tier with open rooftop promenade, cabin stops well short of bow, open foredeck, raked stem, modest bowsprit and headrails, pronounced sheer. Two large side paddle wheels on projecting guards under plain closed semicircular paddleboxes. No propeller, no walking beam, no second full-length cabin tier. Gently rippled Lake Huron, hazy overcast with distant low wooded shore, no lettering on paddleboxes. Create a detailed historically interpretive lake scene faithfully matching the supplied revised GLB render, same three-quarter view, complete hull and all mastheads inside landscape frame. Preserve vessel proportions, exact mast/funnel count, cabin arrangement and fittings. Museum reconstruction illustration, physically plausible lighting and materials. No text, no lettering, no name boards, no guns, no weapons, no cannon, no watermark. Deck windlasses are short paired horizontal transverse drums with rope and a low frame; never longitudinal gun barrels or carriages. No floating parts, extra masts, modern electronics or unrequested ships. No orange rust on wooden hulls; no wood grain on metal hulls. Lake scenery and weather are artistic staging.",
  "imageSha256": "fc5b7438bd689e4fbeab562054e46fe678ac0b75033e15e0703a301c2ee05680",
  "artefactCheck": {
    "date": "2026-09-08",
    "crops": [
      "bow",
      "midships",
      "stern",
      "rig-superstructure"
    ],
    "nativePixelInspection": true,
    "result": "regenerated",
    "imageSha256": "fc5b7438bd689e4fbeab562054e46fe678ac0b75033e15e0703a301c2ee05680",
    "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."
  }
}