{
  "test_id": "T-IMG-002",
  "title": "Authenticated visual comparison of f1v and f102r1 fragment 204",
  "executed_at": "2026-09-17T18:33:00Z",
  "method": "Manual structured comparison of authenticated digital images; no feature-generation model, enhancement, or geometric registration used.",
  "sources": {
    "f1v": {
      "institution": "Beinecke Rare Book and Manuscript Library, Yale University",
      "shelfmark": "MS 408",
      "folio": "f1v",
      "iiif_id": "1006077",
      "dimensions": [2804, 3797],
      "sha256": "43065eacad8a743816eb2b7d9acd8cf882a9bb498f1cea84602d12fede99f77d"
    },
    "f102r1": {
      "institution": "Beinecke Rare Book and Manuscript Library, Yale University",
      "shelfmark": "MS 408",
      "canvas_label": "101v (part) and 102r",
      "iiif_id": "1006251",
      "working_derivative_dimensions": [3000, 1418],
      "working_derivative_sha256": "28f72328d37c1a2674ea63b6bc52dd6a018fe5c594ec596a32414751ebd99a48",
      "comparison_crop_box": [1120, 650, 1970, 1300],
      "comparison_crop_sha256": "398044061d0fd796069286414f039b7d9c2736170be37ec060b932a951094f04"
    }
  },
  "panel_adjudication": {
    "combined_canvas_order": ["f101v1", "f102r1", "f102r2"],
    "target_panel": "center panel: f102r1",
    "target_row": 3,
    "left_neighbor": "fragment 203",
    "target": "fragment 204",
    "basis": "Yale canvas label plus Zandbergen Quire 19 panel layout and left-to-right fragment numbering"
  },
  "observations": {
    "shared": [
      "branching central or near-central axis",
      "simple broad leaves",
      "indentation or division near the attachment of several leaves"
    ],
    "different_or_unavailable": [
      "fragment 204 does not preserve the terminal structure visible on f1v",
      "fragment 204 uses green rather than f1v's green-and-ocher alternation",
      "fragment 204 has fewer leaves in a different arrangement",
      "the broad basal structure of f1v is not available for comparison in the surviving fragment view; fold and damage occupy the lower area"
    ]
  },
  "result": "The images support an internal motif relationship, but not an exact copy. The surviving common features do not establish a botanical species, an organ, a cipher key, or plaintext.",
  "limitations": [
    "qualitative visual audit, not a blind or independent identification study",
    "fragment 204 is incomplete at the lower edge",
    "no color calibration across the two digital captures",
    "the historical phrase 'same plant' is treated as a cataloging judgment, not as proven biological identity"
  ]
}