{
  "date": "2026-10-04",
  "license": "CC0-1.0",
  "generator": "Pillow; deterministic original pixel patterns; no third-party artwork",
  "samples": [
    {
      "name": "alpha-bands.webp",
      "purpose": "Transparent black, half-alpha red, opaque blue, quarter-alpha green bands",
      "width": 256,
      "height": 128,
      "frames": 1,
      "bytes": 72,
      "sha256": "6fbf4f4f2bd2382791efea6cada36bce09d1ffa1a4a5d366cddbfa0734696d8e"
    },
    {
      "name": "odd-detail.webp",
      "purpose": "Lossy WebP with odd dimensions, gradient and fine checker details",
      "width": 257,
      "height": 129,
      "frames": 1,
      "bytes": 1370,
      "sha256": "67a4f2154fee98708875af71686c3b646da275f898158d8566d1efbd08849984"
    },
    {
      "name": "two-frame.webp",
      "purpose": "Red first frame and blue second frame, 400 milliseconds each",
      "width": 96,
      "height": 64,
      "frames": 2,
      "bytes": 144,
      "sha256": "6a3e6f5735ab08260e2908397cd3bf52691c2cb654f4098de4e3e82d7dc85c37"
    },
    {
      "name": "side-4096.webp",
      "purpose": "Accepted side-length boundary, 4096 by 8 pixels",
      "width": 4096,
      "height": 8,
      "frames": 1,
      "bytes": 44,
      "sha256": "e096ecc88c78e36d8302fe2623183a54be7c12bcd89b7d59dcfb229dc9cb0050"
    },
    {
      "name": "side-4097.webp",
      "purpose": "Rejected side-length boundary, 4097 by 8 pixels",
      "width": 4097,
      "height": 8,
      "frames": 1,
      "bytes": 46,
      "sha256": "2cc31d7313698cd98872ae13eb9325ae396053d511c9f315ba64317b7fdfce94"
    },
    {
      "name": "truncated.webp",
      "purpose": "Invalid input; must produce an error and no download",
      "bytes": 24,
      "sha256": "52cb2e0558fe1b8cb22da27c7a7321c515de228d7b304a8994340cdfe0c07ee6"
    },
    {
      "name": "renamed.webp",
      "purpose": "Invalid input; must produce an error and no download",
      "bytes": 26,
      "sha256": "b3c26b40aaad765810f03c494ab104d9896a493dd841459a9a277783468d6444"
    }
  ]
}