{
  "tool": "Built-in image generation",
  "imageFile": "barge-012-illustration.png",
  "createdDate": "2026-09-07",
  "referenceRole": "Newly authored GLB three-quarter render used as visual reference",
  "referenceFile": "barge-012-model-three-quarter.png",
  "historicalStatus": "Supplemental interpretive artwork, not documentary evidence or an exact GLB render",
  "generationPrompt": "Use case: historical-scene. Create realistic richly detailed reconstruction artwork of Barge No. 012, called Barge 12 by NOAA, in an intact LATE WORKING FORM circa the early 1970s before sinking alongside Nordmeer in 1975. This is explicitly NOT a claim about its original 1897 configuration. Reference image 1 is our modern interpretive model: preserve its low rectangular welded-steel scow hull, 160 by 44 feet, clipped blunt corners, broad flat steel deck, SIX rectangular covered deck hatches arranged in two rows of three, heavy winches toward both ends, bollards and a few small barrels and wooden supply crates. No cabin, no crane, no masts, no sails, no funnel and no propulsion engine. Muted blue-gray steel with realistic restrained weathering and weld seams, subtly rusted fittings, calm Lake Huron water around the hull, distant forested Thunder Bay shoreline. Elevated three-quarter view, whole barge inside frame, soft morning sun and detailed reflections. No dramatic damage, divers, text or watermark. Supplemental interpretive artwork based on the model, not an original historical photograph or exact archaeological reconstruction.",
  "artefactCheck": {
    "date": "2026-09-08",
    "crops": [
      "bow",
      "midships",
      "stern",
      "rig-superstructure"
    ],
    "nativePixelInspection": true,
    "result": "clean",
    "imageSha256": "c72c5c4621fde9c972165e2963598257359a02df193c59de7a12e3622f03e3a5",
    "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": "c72c5c4621fde9c972165e2963598257359a02df193c59de7a12e3622f03e3a5"
}