{
  "date": "2026-10-24",
  "method": "One synthetic source image and one image-to-video request; first returned output of each retained without a selection rerun. Visual inspection by the content agent of the source, 24 sampled video frames at four per second, and a separately extracted final frame. Audio content and uninterrupted playback were not assessed.",
  "source": {
    "synthetic": true,
    "model": "gpt-image-2.5-sunburst",
    "attempts": 1,
    "input": {
      "prompt": "Create one finished landscape ink illustration, black ink on warm off-white textured paper, no other colours. A single small wooden sailboat with one straight mast and one simple triangular sail floats on a calm sea. Boat in the right third, sail fully visible with margin above. Fine confident crosshatched pen lines on the hull and sail, gently curved parallel ink lines for water, a straight low horizon, blank sky. Wide uncluttered composition, no people, words, letters, signature, border or multiple panels. This is a flat pen-and-ink illustration, not a photograph of a drawing or paper on a table.",
      "size": "16:9",
      "resolution": "1k"
    },
    "originalDimensions": [
      1672,
      941
    ],
    "originalSha256": "c06a216b85ecb2438809554a8013c67e0402c4e29c92decf6f43ad5c107a7685",
    "publicFile": "source-illustration.webp",
    "publicSha256": "d2d0ed12ea1b5473e3d03442dd58f9600cb0ec88a68f16b379a7cb7a4f83ee1d",
    "processing": "WebP quality 88, no resize or crop; original PNG retained privately. The animation request used the original PNG via a direct HTTPS URL.",
    "publicCatalogTariffUsd": "0.01"
  },
  "animation": {
    "model": "grok-imagine-1.5-video",
    "attempts": 1,
    "input": {
      "prompt": "Animate the water in this ink illustration: gentle small waves travel from left to right beneath the sailboat. The boat, mast and sail hold their position and shape. Locked static camera, unchanged framing. Preserve the monochrome ink hatching and paper texture throughout. One continuous shot. Sound: quiet water only, no speech or music.",
      "urls": [
        "<direct HTTPS URL of the original source PNG; omitted from public record>"
      ],
      "size": "16:9",
      "duration": 6,
      "resolution": "480p"
    },
    "referenceOriginalSha256": "c06a216b85ecb2438809554a8013c67e0402c4e29c92decf6f43ad5c107a7685",
    "publicFile": "sailboat-first-take.mp4",
    "originalSha256": "6ebcc3a015eb81e249d04bc0f3a95f63795e8a8c66d4cd870b33da8356122d4e",
    "publicSha256": "6ebcc3a015eb81e249d04bc0f3a95f63795e8a8c66d4cd870b33da8356122d4e",
    "processing": "Original MP4 copied byte for byte; no trim, resize, retiming or audio change.",
    "output": {
      "width": 736,
      "height": 400,
      "videoDurationSeconds": 6.041667,
      "requestedDurationSeconds": 6,
      "frames": 145,
      "fps": 24,
      "bytes": 2843474,
      "audioTrack": "AAC, stereo, 48000 Hz; presence checked through metadata, content not assessed."
    },
    "publicCatalogTariffUsd": "0.09",
    "billingBasis": "Catalog 480p tier at $0.015 per second multiplied by six requested seconds. Tier label is not a measurement of delivered pixel height."
  },
  "pricing": {
    "source": "https://api.api-stock.com/api/v1/catalog",
    "checkedAt": "2026-10-24",
    "basis": "Public catalog tariffs, not the internal account debit. Source preparation $0.01 plus animation $0.09 gives $0.10; readers supplying their own art do not need the source-generation request."
  },
  "observations": [
    "In the sampled frames, the boat remains on the right with an upright mast and a triangular sail.",
    "The pattern of water lines changes; later samples introduce a darker, foam-like horizontal band and rework the foreground line texture.",
    "The final frame differs from the source: this is generated imagery, not a literal animation of unchanged ink strokes.",
    "Requested 480p tier returned a 736 by 400 pixel file with a 6.041667-second video track."
  ],
  "limitations": [
    "One synthetic illustration, one first take, no comparison, success rate or general preservation claim.",
    "Sampled-frame review does not establish continuous-motion smoothness, exact left-to-right motion, absence of all artifacts, or audio compliance.",
    "No seamless-loop claim; last frame is not identical to the source.",
    "Landscape prompt is unexecuted.",
    "Cover and motion-brief infographic are separately generated editorial artwork, not Grok results.",
    "The published shell uses a placeholder image URL; the demonstrated model/input fields were exercised with the private direct URL of the synthetic source."
  ]
}