{
  "description": "Source records for the Observatory landing page. The research poster is unchanged. The architecture image is a lossless encoding of a native browser capture of the local synthetic demo.",
  "images": [
    {
      "file": "particle-tape.png",
      "kind": "simulation tape poster",
      "tree": "einstruct",
      "bundle": "2dd0038799b2db15",
      "source": "results/bundles/2dd0038799b2db15/poster.png",
      "sha256": "fcdf214ef713da5ff82f79f1dcf44678dbdafe12eebececa28ba6646aea67972",
      "width": 1280,
      "height": 720,
      "variant": "vr-high",
      "variant_frame": 400,
      "t_tau": 200.00000000001123,
      "drawn": 2640,
      "of_slots": 4000,
      "note": "The poster shows the sampled browser variant, not all particles in the original simulation. Its source caption is preserved."
    },
    {
      "file": "observatory.webp",
      "kind": "local-demo browser architecture capture",
      "source": "docs/img/observatory/hall.png",
      "source_sha256": "410b1c89b1ef1b878bf58abe9a6938047fa4a1adf57d92ef0c3d1680de84ba3b",
      "sha256": "e0462b83f8fcfe0081f4df6ffcd1c0946e0fc24128eb5e7d5af5300cd3e78c18",
      "width": 1600,
      "height": 900,
      "camera": {
        "room": "hall",
        "x": 0,
        "z": 8,
        "eyeHeight": 1.6,
        "yawDeg": 0,
        "pitchDeg": 12
      },
      "note": "Actual Chromium/SwiftShader browser view. HTML controls are hidden; distant particles are synthetic local playback fixtures. This is not scientific evidence or physical-device validation.",
      "capture_command": "cd grove && pnpm quality:world --screenshots --out ../results/observatory/world-final.json",
      "code_sha256": {
        "grove/src/world/observatory.ts": "ce4277ceafc1c9afcc3d029795359e4fa52f61089789c8dab610d377d29d4f51",
        "grove/src/world/mansion.json": "2eb98dbba0adc2180f9c7f59a2744c0dbe8ec28a69144bf5353bd265295db7c4",
        "grove/src/world/sky.ts": "4426b85eb485aa83beb6b139c174a2072696fd7cb96a208240f27713e011ad03",
        "grove/src/world/world.ts": "4d59de0dbabe070637f9caa9e6b4e0b8d93a17c56cdb2a571de490a7d7c3fec1",
        "grove/src/render/view.ts": "95884823f80be175f5e72c20ff4307d4ec2d1b5f57235f89d51f10c9f5d90969"
      },
      "encoding": {
        "format": "WebP",
        "lossless": true,
        "source_bytes": 762850,
        "encoded_bytes": 536094,
        "decoded_rgba_sha256": "c54eb1eb937359121910e1296a80eba69a1d8b0e8b38a6fefd5b5dfb8fa67beb",
        "pixel_verification": "Source PNG and encoded WebP have identical decoded RGBA bytes.",
        "tool": "FFmpeg libwebp",
        "command": "ffmpeg -i docs/img/observatory/hall.png -c:v libwebp -lossless 1 grove/public/site/observatory.webp"
      }
    }
  ]
}