{
  "path": "/tmp/codex/ltb1021/2026-09-09_contextra-medium-video_r01/frames.rgb",
  "size": 552960000,
  "sha256": "5064301cbb0b27bca2fdae9a7c586f42c0bed4ad1b4b545450c4135f0a69b541",
  "reason": "regenerable decoded RGB; final MP4 and evidence retained"
}