{
  "tool": "OpenAI built-in image generation",
  "imageFile": "bermuda-illustration.png",
  "createdDate": "2026-09-08",
  "revisedDate": "2026-09-08",
  "referenceRole": "Revised model render",
  "referenceFile": "bermuda-model-three-quarter.png",
  "referenceFiles": [
    "bermuda-model-three-quarter.png"
  ],
  "historicalStatus": "AI-generated interpretive artwork; not documentary evidence or an exact GLB render",
  "generationPrompt": "Bermuda wooden two-masted canaller1860–1870. Keep actual reference geometry: square-sided bluff hull, SOLID flat modestly raked transom with a properly attached central rudder below waterline, no open lattice crate stern, no rods sticking from sides. Two gaff sails, three triangular headsails and small fore gaff topsail; low stern cabin. Deep dark greenish painted wooden hull with narrow light bands as interpretive palette. No exposed broad rudder slab above waterline. Calm bright Munising Bay with wooded shoreline, gently filled sails and no storm. Use the supplied GLB render as primary geometry reference, preserving complete silhouette, proportions, all mastheads, exact number of masts/funnels, cabin and deck fittings. Landscape full ship three-quarter view, detailed interpretive museum historical scene with lake background, plausible period construction. No text, no lettering, no name boards, no guns, no weapons, no cannon, no watermark. Deck windlasses are short transverse winch drums wound with rope, not gun barrels. No floating parts or extra masts. No wood grain on steel or iron; no orange rust on wooden hulls. No modern electronics or synthetic yellow lines. No invented ships.",
  "imageSha256": "538192a019c5cd7130f1136a56614fdbe3c60654176d32164c2141b5aaf00fb2",
  "artefactCheck": {
    "date": "2026-09-08",
    "crops": [
      "bow",
      "midships",
      "stern",
      "rig-superstructure"
    ],
    "nativePixelInspection": true,
    "result": "regenerated",
    "imageSha256": "538192a019c5cd7130f1136a56614fdbe3c60654176d32164c2141b5aaf00fb2",
    "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."
  }
}