{
  "tool": "Built-in image generation",
  "imageFile": "samuel-mather-illustration.png",
  "createdDate": "2026-09-08",
  "referenceRole": "Newly authored GLB three-quarter render used as visual reference",
  "referenceFile": "samuel-mather-model-three-quarter.png",
  "historicalStatus": "Supplemental interpretive artwork, not documentary evidence or an exact GLB render",
  "generationPrompt": "Create one detailed, photorealistic museum-quality maritime reconstruction illustration, landscape 3:2, using the attached newly authored 3D model render as the principal vessel shape reference. Show the entire original working ship afloat on Lake Superior, three-quarter view, realistic period construction, restrained natural colors, distant undeveloped forested shoreline. Preserve the number of masts, funnels and major superstructures shown in the reference; water hides the underwater hull. No captions, labels, modern buildings or ships. This is interpretive historical artwork, not documentary proof. Samuel Mather, wooden Great Lakes freighter 1887–1891, 246 by 40 feet. Exactly TWO bare masts and TWO separate aft black funnels abreast, low forward pilothouse, long cargo-hatch deck, covered stern gallery. Nearby ships' masts must not be added. Fair sunny morning, clear blue water, soft cloud wisps and warm neutral light, gentle smoke from both funnels.",
  "artefactCheck": {
    "date": "2026-09-08",
    "crops": [
      "bow",
      "midships",
      "stern",
      "rig-superstructure"
    ],
    "nativePixelInspection": true,
    "result": "clean",
    "imageSha256": "4c766b2bb91d0fc720eee0bbe8f0c9b38995df396d692f2478ebfe593d959e2d",
    "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": "4c766b2bb91d0fc720eee0bbe8f0c9b38995df396d692f2478ebfe593d959e2d"
}