{
  "tool": "Built-in image generation",
  "imageFile": "shale-scow-illustration.png",
  "createdDate": "2026-09-08",
  "referenceRole": "Newly authored GLB three-quarter render used as visual reference",
  "referenceFile": "shale-scow-model-three-quarter.png",
  "historicalStatus": "Supplemental interpretive artwork, not documentary evidence or an exact GLB render",
  "generationPrompt": "Create one polished, realistic maritime historical reconstruction illustration of Shale Scow, Wooden cargo scow, Working cargo-scow interpretation, before 1903. Landscape composition, lake visible in background, entire ship and all spars in frame with generous margins. Use the supplied newly-authored 3D render as the structural reference: preserve its hull proportions, number of masts and funnels, working arrangement and ship type. Make it look like a richly detailed physical vessel afloat, not a toy or studio model. Setting: a passing rain shower, soft gray daylight, wet timber and restrained choppy waves. Low distant Great Lakes shoreline, believable fresh water, no mountains or modern skyline. Treat this as interpretive artwork, not documentary evidence. No text, lettering, flags, pennants, logos, labels, captions or watermark. No people in distress or disaster. Do not add extra masts, funnels, sails, cargo cranes or decks. Ship length 100 ft, beam 24 ft. No deployed sails.",
  "artefactCheck": {
    "date": "2026-09-08",
    "crops": [
      "bow",
      "midships",
      "stern",
      "rig-superstructure"
    ],
    "nativePixelInspection": true,
    "result": "clean",
    "imageSha256": "1af8994292c8d2123eda4bd7b52982d35a3f69fc7940f2ce6d35dad108c4067f",
    "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": "1af8994292c8d2123eda4bd7b52982d35a3f69fc7940f2ce6d35dad108c4067f"
}