{
  "schema": "pajama.playback-followup.v1",
  "date": "2026-09-22",
  "browser": "Codex in-app browser / WebGPU",
  "method": "Actual browser button: one-second warmup followed by six seconds of playback, calibrated first camera. Single-host smoke samples, not a cross-device FPS guarantee. Current short fixtures fit the decoded 64 MiB residency budget.",
  "results": [
    {
      "schema": "pajama.playback-evidence.v1",
      "scene": "flames-v1",
      "mode": "resident",
      "windowMs": 6002.700000000001,
      "submittedFrames": 360,
      "frameIntervalP50Ms": 16.69999999999891,
      "frameIntervalP95Ms": 16.799999999999272,
      "framesOver50Ms": 0,
      "bufferEvents": 0,
      "bufferMs": 0,
      "sourceReplacements": 0,
      "mediaAdvancedSeconds": 6.0027000000000275,
      "residentCount": 330246,
      "canvasPixels": [
        1179,
        884
      ],
      "hiddenDuringMeasurement": false
    },
    {
      "schema": "pajama.playback-evidence.v1",
      "scene": "sear-steak-v1",
      "mode": "resident",
      "windowMs": 6002.699999999997,
      "submittedFrames": 360,
      "frameIntervalP50Ms": 16.69999999999709,
      "frameIntervalP95Ms": 16.80000000000291,
      "framesOver50Ms": 0,
      "bufferEvents": 0,
      "bufferMs": 0,
      "sourceReplacements": 0,
      "mediaAdvancedSeconds": 6.00270000000002,
      "residentCount": 104754,
      "canvasPixels": [
        1179,
        884
      ],
      "hiddenDuringMeasurement": false
    }
  ],
  "interactionChecks": [
    "Mouse drag changes the rendered camera",
    "Scroll-wheel and keyboard zoom",
    "Arrow-key rotation",
    "Reset restores calibrated view",
    "Scene and calibrated-camera switching",
    "Timeline seek within resident clip",
    "No browser console errors"
  ],
  "scope": "Background worker decodes and assembles source data. Budgeted prefetch for larger manifests is implemented and tested with synthetic manifest bounds; seamless playback of a large trained long-sequence model remains unverified."
}