{
  "schema_version": 1,
  "tile_id": "gz_us_ca_pacifica_utm10n_e544_n4160",
  "registry_path": "Data/Tiles/ground_zero_tiles.json",
  "grid_scheme": "prototype_utm_1km",
  "verified_tile_count": 9,
  "expected_neighbor_count": 8,
  "found_neighbor_count": 8,
  "all_passed": true,
  "missing_neighbors": [],
  "tile_shape_checks": [
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e544_n4160",
      "passed": true,
      "errors": []
    },
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e543_n4159",
      "passed": true,
      "errors": []
    },
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e544_n4159",
      "passed": true,
      "errors": []
    },
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e545_n4159",
      "passed": true,
      "errors": []
    },
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e543_n4160",
      "passed": true,
      "errors": []
    },
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e545_n4160",
      "passed": true,
      "errors": []
    },
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e543_n4161",
      "passed": true,
      "errors": []
    },
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e544_n4161",
      "passed": true,
      "errors": []
    },
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e545_n4161",
      "passed": true,
      "errors": []
    }
  ],
  "neighbor_edge_checks": [
    {
      "direction": "n",
      "neighbor_tile_id": "gz_us_ca_pacifica_utm10n_e544_n4161",
      "expected_bounds_utm_m": {
        "easting_min_m": 544000,
        "northing_min_m": 4161000,
        "easting_max_m": 545000,
        "northing_max_m": 4162000
      },
      "actual_bounds_utm_m": {
        "easting_min_m": 544000,
        "northing_min_m": 4161000,
        "easting_max_m": 545000,
        "northing_max_m": 4162000
      },
      "shared_edge": {
        "center_edge": "north",
        "neighbor_edge": "south",
        "shared_northing_m": 4161000,
        "easting_span_m": [
          544000,
          545000
        ]
      },
      "passed": true,
      "errors": []
    },
    {
      "direction": "ne",
      "neighbor_tile_id": "gz_us_ca_pacifica_utm10n_e545_n4161",
      "expected_bounds_utm_m": {
        "easting_min_m": 545000,
        "northing_min_m": 4161000,
        "easting_max_m": 546000,
        "northing_max_m": 4162000
      },
      "actual_bounds_utm_m": {
        "easting_min_m": 545000,
        "northing_min_m": 4161000,
        "easting_max_m": 546000,
        "northing_max_m": 4162000
      },
      "shared_edge": {
        "center_corner_touch": "ne",
        "corner_touch_only": true,
        "expected_bounds": {
          "easting_min_m": 545000,
          "northing_min_m": 4161000,
          "easting_max_m": 546000,
          "northing_max_m": 4162000
        }
      },
      "passed": true,
      "errors": []
    },
    {
      "direction": "e",
      "neighbor_tile_id": "gz_us_ca_pacifica_utm10n_e545_n4160",
      "expected_bounds_utm_m": {
        "easting_min_m": 545000,
        "northing_min_m": 4160000,
        "easting_max_m": 546000,
        "northing_max_m": 4161000
      },
      "actual_bounds_utm_m": {
        "easting_min_m": 545000,
        "northing_min_m": 4160000,
        "easting_max_m": 546000,
        "northing_max_m": 4161000
      },
      "shared_edge": {
        "center_edge": "east",
        "neighbor_edge": "west",
        "shared_easting_m": 545000,
        "northing_span_m": [
          4160000,
          4161000
        ]
      },
      "passed": true,
      "errors": []
    },
    {
      "direction": "se",
      "neighbor_tile_id": "gz_us_ca_pacifica_utm10n_e545_n4159",
      "expected_bounds_utm_m": {
        "easting_min_m": 545000,
        "northing_min_m": 4159000,
        "easting_max_m": 546000,
        "northing_max_m": 4160000
      },
      "actual_bounds_utm_m": {
        "easting_min_m": 545000,
        "northing_min_m": 4159000,
        "easting_max_m": 546000,
        "northing_max_m": 4160000
      },
      "shared_edge": {
        "center_corner_touch": "se",
        "corner_touch_only": true,
        "expected_bounds": {
          "easting_min_m": 545000,
          "northing_min_m": 4159000,
          "easting_max_m": 546000,
          "northing_max_m": 4160000
        }
      },
      "passed": true,
      "errors": []
    },
    {
      "direction": "s",
      "neighbor_tile_id": "gz_us_ca_pacifica_utm10n_e544_n4159",
      "expected_bounds_utm_m": {
        "easting_min_m": 544000,
        "northing_min_m": 4159000,
        "easting_max_m": 545000,
        "northing_max_m": 4160000
      },
      "actual_bounds_utm_m": {
        "easting_min_m": 544000,
        "northing_min_m": 4159000,
        "easting_max_m": 545000,
        "northing_max_m": 4160000
      },
      "shared_edge": {
        "center_edge": "south",
        "neighbor_edge": "north",
        "shared_northing_m": 4160000,
        "easting_span_m": [
          544000,
          545000
        ]
      },
      "passed": true,
      "errors": []
    },
    {
      "direction": "sw",
      "neighbor_tile_id": "gz_us_ca_pacifica_utm10n_e543_n4159",
      "expected_bounds_utm_m": {
        "easting_min_m": 543000,
        "northing_min_m": 4159000,
        "easting_max_m": 544000,
        "northing_max_m": 4160000
      },
      "actual_bounds_utm_m": {
        "easting_min_m": 543000,
        "northing_min_m": 4159000,
        "easting_max_m": 544000,
        "northing_max_m": 4160000
      },
      "shared_edge": {
        "center_corner_touch": "sw",
        "corner_touch_only": true,
        "expected_bounds": {
          "easting_min_m": 543000,
          "northing_min_m": 4159000,
          "easting_max_m": 544000,
          "northing_max_m": 4160000
        }
      },
      "passed": true,
      "errors": []
    },
    {
      "direction": "w",
      "neighbor_tile_id": "gz_us_ca_pacifica_utm10n_e543_n4160",
      "expected_bounds_utm_m": {
        "easting_min_m": 543000,
        "northing_min_m": 4160000,
        "easting_max_m": 544000,
        "northing_max_m": 4161000
      },
      "actual_bounds_utm_m": {
        "easting_min_m": 543000,
        "northing_min_m": 4160000,
        "easting_max_m": 544000,
        "northing_max_m": 4161000
      },
      "shared_edge": {
        "center_edge": "west",
        "neighbor_edge": "east",
        "shared_easting_m": 544000,
        "northing_span_m": [
          4160000,
          4161000
        ]
      },
      "passed": true,
      "errors": []
    },
    {
      "direction": "nw",
      "neighbor_tile_id": "gz_us_ca_pacifica_utm10n_e543_n4161",
      "expected_bounds_utm_m": {
        "easting_min_m": 543000,
        "northing_min_m": 4161000,
        "easting_max_m": 544000,
        "northing_max_m": 4162000
      },
      "actual_bounds_utm_m": {
        "easting_min_m": 543000,
        "northing_min_m": 4161000,
        "easting_max_m": 544000,
        "northing_max_m": 4162000
      },
      "shared_edge": {
        "center_corner_touch": "nw",
        "corner_touch_only": true,
        "expected_bounds": {
          "easting_min_m": 543000,
          "northing_min_m": 4161000,
          "easting_max_m": 544000,
          "northing_max_m": 4162000
        }
      },
      "passed": true,
      "errors": []
    }
  ],
  "stitching_decision": {
    "ready_for_coordinate_based_neighbor_stitching": true,
    "notes": [
      "All Ground Zero neighbor placeholders align on exact 1000m UTM boundaries.",
      "Cardinal neighbors share full 1km edges with no gap or overlap.",
      "Diagonal neighbors touch at corners only.",
      "This verifies registry coordinates, not yet elevation seam continuity."
    ]
  }
}
