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    "cut_only_svg_sha256": "8906a8139565ec32fb6e240d7fe7c1e065d6c264853cc69d2f0c57d90ccb5f10",
    "preview_sha256": "0ef0cfa9a3835eb12ede7c2698a9ad5da44b4ba8f8c525a32accd9f479812477"
  },
  "checks": [
    {
      "name": "v1_pdf_still_exists",
      "passed": true,
      "message": "V1 registration PDF is still present.",
      "details": {}
    },
    {
      "name": "v1_svg_still_exists",
      "passed": true,
      "message": "V1 registration SVG is still present.",
      "details": {}
    },
    {
      "name": "v1_pdf_hash_preserved",
      "passed": true,
      "message": "V1 registration PDF hash is unchanged.",
      "details": {}
    },
    {
      "name": "v1_svg_hash_preserved",
      "passed": true,
      "message": "V1 registration SVG hash is unchanged.",
      "details": {}
    },
    {
      "name": "local_v2_pdf_still_exists",
      "passed": true,
      "message": "Local V2 registration PDF is still present.",
      "details": {}
    },
    {
      "name": "local_v2_svg_still_exists",
      "passed": true,
      "message": "Local V2 registration SVG is still present.",
      "details": {}
    },
    {
      "name": "local_v2_pdf_hash_preserved",
      "passed": true,
      "message": "Local V2 registration PDF hash is unchanged.",
      "details": {}
    },
    {
      "name": "local_v2_svg_hash_preserved",
      "passed": true,
      "message": "Local V2 registration SVG hash is unchanged.",
      "details": {}
    },
    {
      "name": "xy_ladder_pdf_still_exists",
      "passed": true,
      "message": "XY ladder PDF is still present.",
      "details": {}
    },
    {
      "name": "xy_ladder_svg_still_exists",
      "passed": true,
      "message": "XY ladder SVG is still present.",
      "details": {}
    },
    {
      "name": "xy_ladder_pdf_hash_preserved",
      "passed": true,
      "message": "XY ladder PDF hash is unchanged.",
      "details": {}
    },
    {
      "name": "xy_ladder_svg_hash_preserved",
      "passed": true,
      "message": "XY ladder SVG hash is unchanged.",
      "details": {}
    },
    {
      "name": "pdf_exists",
      "passed": true,
      "message": "XY coarse grid PDF exists.",
      "details": {}
    },
    {
      "name": "png_exists",
      "passed": true,
      "message": "XY coarse grid PNG exists.",
      "details": {}
    },
    {
      "name": "alignment_svg_exists",
      "passed": true,
      "message": "XY coarse grid alignment SVG exists.",
      "details": {}
    },
    {
      "name": "cut_only_svg_exists",
      "passed": true,
      "message": "XY coarse grid cut-only SVG exists.",
      "details": {}
    },
    {
      "name": "preview_exists",
      "passed": true,
      "message": "XY coarse grid preview exists.",
      "details": {}
    },
    {
      "name": "artifact_hashes_exist",
      "passed": true,
      "message": "All XY coarse grid artifact hashes exist.",
      "details": {}
    },
    {
      "name": "png_dimensions_match",
      "passed": true,
      "message": "PNG is exactly 5100 x 6600 px.",
      "details": {
        "actual": [
          5100,
          6600
        ],
        "expected": [
          5100,
          6600
        ]
      }
    },
    {
      "name": "png_mode_matches",
      "passed": true,
      "message": "PNG is RGB.",
      "details": {
        "actual": "RGB",
        "expected": "RGB"
      }
    },
    {
      "name": "png_dpi_matches",
      "passed": true,
      "message": "PNG DPI metadata is 600 DPI.",
      "details": {
        "actual": [
          599.9988,
          599.9988
        ],
        "expected": [
          600,
          600
        ]
      }
    },
    {
      "name": "pdf_page_size_matches",
      "passed": true,
      "message": "PDF MediaBox is 612 x 792 pt.",
      "details": {}
    },
    {
      "name": "alignment_svg_xml_parses",
      "passed": true,
      "message": "Alignment SVG parses as XML.",
      "details": {
        "error": ""
      }
    },
    {
      "name": "cut_only_svg_xml_parses",
      "passed": true,
      "message": "Cut-only SVG parses as XML.",
      "details": {
        "error": ""
      }
    },
    {
      "name": "alignment_svg_root_dimensions_match",
      "passed": true,
      "message": "alignment SVG root has explicit Letter dimensions in millimeters.",
      "details": {}
    },
    {
      "name": "alignment_svg_viewbox_matches",
      "passed": true,
      "message": "alignment SVG viewBox matches the Letter mm coordinate frame.",
      "details": {}
    },
    {
      "name": "alignment_svg_no_prohibited_content",
      "passed": true,
      "message": "alignment SVG contains no image, foreignObject, or style elements.",
      "details": {}
    },
    {
      "name": "alignment_svg_no_transforms",
      "passed": true,
      "message": "alignment SVG contains no transforms.",
      "details": {}
    },
    {
      "name": "alignment_svg_no_filled_geometry",
      "passed": true,
      "message": "alignment SVG geometry has no fills.",
      "details": {}
    },
    {
      "name": "alignment_svg_has_no_text",
      "passed": true,
      "message": "alignment SVG has no text elements.",
      "details": {}
    },
    {
      "name": "cut_only_svg_root_dimensions_match",
      "passed": true,
      "message": "cut_only SVG root has explicit Letter dimensions in millimeters.",
      "details": {}
    },
    {
      "name": "cut_only_svg_viewbox_matches",
      "passed": true,
      "message": "cut_only SVG viewBox matches the Letter mm coordinate frame.",
      "details": {}
    },
    {
      "name": "cut_only_svg_no_prohibited_content",
      "passed": true,
      "message": "cut_only SVG contains no image, foreignObject, or style elements.",
      "details": {}
    },
    {
      "name": "cut_only_svg_no_transforms",
      "passed": true,
      "message": "cut_only SVG contains no transforms.",
      "details": {}
    },
    {
      "name": "cut_only_svg_no_filled_geometry",
      "passed": true,
      "message": "cut_only SVG geometry has no fills.",
      "details": {}
    },
    {
      "name": "cut_only_svg_has_no_text",
      "passed": true,
      "message": "cut_only SVG has no text elements.",
      "details": {}
    },
    {
      "name": "alignment_registration_reference_group_exists",
      "passed": true,
      "message": "Alignment SVG has blue local A/B/C registration reference group.",
      "details": {}
    },
    {
      "name": "alignment_registration_check_group_exists",
      "passed": true,
      "message": "Alignment SVG has blue local D check group.",
      "details": {}
    },
    {
      "name": "alignment_cut_group_exists",
      "passed": true,
      "message": "Alignment SVG has red coarse grid cut group.",
      "details": {}
    },
    {
      "name": "cut_only_cut_group_exists",
      "passed": true,
      "message": "Cut-only SVG has red coarse grid cut group.",
      "details": {}
    },
    {
      "name": "cut_only_has_no_registration_groups",
      "passed": true,
      "message": "Cut-only SVG contains no blue registration groups.",
      "details": {}
    },
    {
      "name": "alignment_path_count_matches",
      "passed": true,
      "message": "Alignment SVG has local registration paths plus red candidates.",
      "details": {
        "actual": 30,
        "expected": 30
      }
    },
    {
      "name": "cut_only_path_count_matches",
      "passed": true,
      "message": "Cut-only SVG has red candidates only.",
      "details": {
        "actual": 22,
        "expected": 22
      }
    },
    {
      "name": "alignment_red_candidate_count_matches",
      "passed": true,
      "message": "Alignment SVG red candidate count matches the plan.",
      "details": {}
    },
    {
      "name": "cut_only_red_candidate_count_matches",
      "passed": true,
      "message": "Cut-only SVG red candidate count matches the plan.",
      "details": {}
    },
    {
      "name": "alignment_red_path_hash_matches",
      "passed": true,
      "message": "Alignment SVG red path data matches the shared coordinate plan.",
      "details": {}
    },
    {
      "name": "cut_only_red_path_hash_matches",
      "passed": true,
      "message": "Cut-only SVG red path data matches the shared coordinate plan.",
      "details": {}
    },
    {
      "name": "red_path_hash_parity",
      "passed": true,
      "message": "Alignment and cut-only SVG red path data are identical.",
      "details": {}
    },
    {
      "name": "alignment_cut_group_stroke_matches",
      "passed": true,
      "message": "Alignment SVG coarse grid cut paths use red stroke.",
      "details": {}
    },
    {
      "name": "alignment_cut_group_hairline_matches",
      "passed": true,
      "message": "Alignment SVG coarse grid cut paths use hairline stroke.",
      "details": {}
    },
    {
      "name": "alignment_cut_group_has_no_fill",
      "passed": true,
      "message": "Alignment SVG coarse grid cut group has no fill.",
      "details": {}
    },
    {
      "name": "cut_only_cut_group_stroke_matches",
      "passed": true,
      "message": "Cut-only SVG coarse grid cut paths use red stroke.",
      "details": {}
    },
    {
      "name": "cut_only_cut_group_hairline_matches",
      "passed": true,
      "message": "Cut-only SVG coarse grid cut paths use hairline stroke.",
      "details": {}
    },
    {
      "name": "cut_only_cut_group_has_no_fill",
      "passed": true,
      "message": "Cut-only SVG coarse grid cut group has no fill.",
      "details": {}
    },
    {
      "name": "cut_only_contains_only_candidate_paths",
      "passed": true,
      "message": "Cut-only SVG contains no helper, mark, frame, or diagonal paths.",
      "details": {
        "unexpected_path_ids": []
      }
    },
    {
      "name": "red_candidate_ids_match",
      "passed": true,
      "message": "Both SVGs include the exact expected red candidate IDs.",
      "details": {}
    },
    {
      "name": "candidate_range_matches",
      "passed": true,
      "message": "Coarse grid includes -5.00 mm through +5.00 mm.",
      "details": {}
    },
    {
      "name": "candidate_range_includes_zero",
      "passed": true,
      "message": "Coarse grid includes +0.00 mm.",
      "details": {}
    },
    {
      "name": "candidate_offsets_sorted",
      "passed": true,
      "message": "Coarse grid offsets are sorted in ascending order.",
      "details": {}
    },
    {
      "name": "candidate_paths_inside_safe_area",
      "passed": true,
      "message": "All coarse grid candidate cut paths stay inside the printable safe area.",
      "details": {
        "min_x_mm": 18.0,
        "min_y_mm": 48.5,
        "max_x_mm": 173.0,
        "max_y_mm": 257.0,
        "width_mm": 155.0,
        "height_mm": 208.5
      }
    },
    {
      "name": "candidate_count_matches",
      "passed": true,
      "message": "Coarse grid defines 11 X and 11 Y candidates.",
      "details": {}
    },
    {
      "name": "cut_only_has_no_blue_stroke",
      "passed": true,
      "message": "Cut-only SVG does not contain the blue registration stroke.",
      "details": {}
    }
  ],
  "warnings": [
    "Cut-only SVG is safer only after XCS import-origin parity is visually confirmed against the alignment SVG.",
    "If cut-only SVG shifts in XCS, cut from the alignment SVG only after deleting or disabling every blue vector.",
    "Treat selected offsets as provisional until repeated with a fine grid centered on the selected values.",
    "Do not apply coarse-grid compensation to jigsaw exports until the owner confirms the physical result."
  ]
}