{
  "tool": "Built-in image generation",
  "imageFile": "panther-illustration.png",
  "createdDate": "2026-09-07",
  "referenceRole": "Newly authored GLB three-quarter render used as visual reference",
  "referenceFile": "panther-model-three-quarter.png",
  "historicalStatus": "Supplemental interpretive artwork, not documentary evidence or an exact GLB render",
  "generationPrompt": "Create a highly detailed, refined maritime reconstruction illustration of Panther for Michigan Lake Depths. Use the attached newly authored 3D render as the principal visual reference for the ship's overall scale, silhouette, hull proportions and placement of superstructure. Era: Photographed Toledo career form; date uncertain. A passing Great Lakes rain shower: silver-gray rain clouds, a curtain of rain over part of the distant Lake Superior horizon, fine rain near the ship, wet wood catching a break of pale sunlight and moderate steel-green lake chop. The entire intact ship remains clear and readable. Preserve the two bare masts, forward wheelhouse, single thick aft funnel, open cargo deck and rounded covered stern gallery. No giant cranes, dock gantries or deployed sails. No distress, collision, lightning strike or sinking. Show the complete vessel afloat at its plausible working waterline, bow to the left, in an elegant three-quarter view with comfortable margins. Underwater hull naturally hidden by the lake. Realistic museum-quality painted illustration, finely observed period woodwork, rigging where present, natural light and convincing fresh water. Landscape 3:2 composition. No modern buildings, text, captions, logos, map pins, archival border or display base. Weather, shoreline and lighting are artistic scene choices, not a recreation of a documented voyage or loss. Preserve the reference's defining geometry; do not invent extra masts, funnels, tall superstructure or sails. This is supplemental interpretive artwork, not documentary evidence or an exact model render.",
  "artefactCheck": {
    "date": "2026-09-08",
    "crops": [
      "bow",
      "midships",
      "stern",
      "rig-superstructure"
    ],
    "nativePixelInspection": true,
    "result": "clean",
    "imageSha256": "6b615cee04e1deaa0639811f67a36e538bf6688a335faf208cc8280416002e42",
    "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": "6b615cee04e1deaa0639811f67a36e538bf6688a335faf208cc8280416002e42"
}