{
  "schema_version": "1.0.0",
  "achievement_id": "024",
  "comparison": "plate frame vs. Trivision lead image",
  "plate_path": "evidence/024/sources/plate-024.jpg",
  "comparison_path": "evidence/024/sources/trivision-2026-08-12.webp",
  "plate_sha256": "66e31fb918e4ce9c4032e62ef0e8c1c30c0c59b456d6d4e7afc4de83af3ae710",
  "comparison_sha256": "b1cd204a8cc544ebe0703a2f0ed468d20bfd3b62ecce8bf7db54464eab5e352b",
  "plate_dimensions": [
    640,
    360
  ],
  "comparison_dimensions": [
    1280,
    720
  ],
  "method": "OpenCV ORB feature comparison between the 640×360 plate and 1280×720 Trivisión image, plus visual inspection of stable geometry. The plate has title/program overlays and the published image has a channel watermark.",
  "finding": "Near-exact source-frame match based on 174 ORB ratio-test matches and identical stable scene geometry. This bridges the plate to the reported project, but does not independently prove contracting, quantities, completion, receipt, final cost or outcomes.",
  "visual_observations": "Aerial view of an unmarked pale granular road network through dense vegetation and scattered buildings; no bridge is visible, and no culvert or engineered drain can be identified at this resolution. The image alone does not identify a road code or coordinates.",
  "orb_keypoints_plate": 3923,
  "orb_keypoints_comparison": 4000,
  "orb_good_matches_ratio_test_0_75": 174
}