{
  "figure": "twin-v5-evidence-figure.png",
  "pixels": [
    4800,
    2300
  ],
  "bbox": [
    174.755,
    -36.846,
    174.765,
    -36.8395
  ],
  "origin": [
    174.76,
    -36.842749999999995
  ],
  "projection": "local equirectangular metric approximation, orthographic camera",
  "display_domains": {
    "footprint_area_log_m2": [
      10,
      10000
    ],
    "facade_direct_beam_Wm2": [
      0,
      800
    ],
    "historical_air_temperature_C": [
      18,
      19.5
    ],
    "historical_canopy_fraction": [
      0,
      0.25
    ]
  },
  "camera": {
    "azimuth_deg": -26,
    "elevation_deg": 60,
    "vertical_exaggeration": 3
  },
  "buildings": 133,
  "historical_cells": 24,
  "facade_patches": 7738,
  "time": "2026-12-20T20:00:00.000Z",
  "height_assumption_m": 10,
  "dni_assumption_wm2": 800,
  "source_sha256": {
    "data/twin-buildings.geojson": "e2dc8ea8957df4f499e7639a582a77b6d181a5d317854fda7f26afa6ef724620",
    "data/twin-heat.geojson": "5a12cc31e77abfaadb1fcbded7d6a67f5b493b634dc8785a59f96a6d63c39f73",
    "data/twin-context.geojson": "2e0e495f359ba4b51f6159a2679e837dcd4338a2e228998fd6c122abb1f5a77a",
    "src/twin-facade-ray.mjs": "84294f980bd3b1d7e2e0cf54b93e044a9d8ef6713cbb51bc0c57dc8f8e043937"
  },
  "sources": {
    "buildings": {
      "source": "LINZ NZ Building Outlines (ArcGIS mirror)",
      "source_url": "https://services.arcgis.com/xdsHIIxuCWByZiCB/ArcGIS/rest/services/LINZ_NZ_Building_Outlines/FeatureServer/0",
      "retrieved_at": "2026-11-02T00:15:54.566681+00:00",
      "bbox": [
        174.745,
        -36.865,
        174.792,
        -36.832
      ],
      "licence": "CC BY 4.0",
      "status": "published footprint geometry; no measured heights",
      "truncated": false,
      "completeness": "All source OBJECTIDs in bounding box independently enumerated and retrieved; exact duplicate building geometries removed.",
      "completeness_verified": true,
      "source_object_count": 6980,
      "unique_geometry_count": 6944,
      "duplicate_geometries_removed": 36,
      "ingestion_method": "Enumerate all source OBJECTIDs, then retrieve fixed ID batches; stable OBJECTID ordering.",
      "coordinate_precision": 7
    },
    "historical_fields": {
      "source": "Auckland Council / Arup",
      "source_url": "https://services1.arcgis.com/n4yPwebTjJCmXB6W/arcgis/rest/services/Average_Daily_Air_Temperature_C/FeatureServer/0",
      "status": "historical model, Nov 2021\u2013Mar 2022, not current measurements",
      "resolution": "300m grid, near-surface air temperature",
      "licence": "Creative Commons (refer to data owner)",
      "retrieved_at": "2026-11-02T00:08:43.241453+00:00"
    }
  },
  "aerial": {
    "path": "media/twin-aerial-v5.webp",
    "bbox": [
      174.755,
      -36.846,
      174.765,
      -36.8395
    ],
    "sha256": "95dbd99698904e692a5e44b93202fa21243b28ab62a28ad11ca239a9900c4077"
  },
  "limitations": [
    "The source does not contain surveyed individual building heights. Every prism uses the same explicit 10 m verification assumption.",
    "Facade solar is direct-beam geometry only, under assumed DNI and supplied occluders; not a validated site prediction or annual yield.",
    "Historical air temperature and canopy fraction remain on original model-cell support; no interpolation claims finer source accuracy.",
    "Helsinki-like four-panel composition is a visual reference, not proof of equivalent energy/geothermal data or scientific parity."
  ],
  "outputs": {
    "png_sha256": "8ec64b91fe95596ecb047f28b428e1283ba2335846b5de534c44b2a9246d8db1",
    "facade_json_sha256": "2015eab24d32594f055b8a13a9eeed5afe996ed490f750e8bbb4603f6181ef34",
    "facade_gzip_sha256": "ea2c49a1560395a09c2ba723ed24d822d53b73e737ed52956f4102f4f028458a"
  }
}