{
  "checked_at": "2026-09-26T15:08:23.767319+00:00",
  "method": "GET five public CDN variants for two ThumbGlance videos. Dimensions verified by image decoding. Near-black rows: at least 99% RGB components below 16. Not an upload or device-display test.",
  "rows": [
    {
      "video": "jf5U0rfS7gI",
      "variant": "default",
      "url": "https://i.ytimg.com/vi/jf5U0rfS7gI/default.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 2700,
      "width": 120,
      "height": 90,
      "format": "JPEG",
      "sha256": "05267b8bda99ac1ac98f83b4cf36ff747ce100734c9850734cedc899aabeaafd",
      "near_black_top_rows": 11,
      "near_black_bottom_rows": 11
    },
    {
      "video": "jf5U0rfS7gI",
      "variant": "mqdefault",
      "url": "https://i.ytimg.com/vi/jf5U0rfS7gI/mqdefault.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 6504,
      "width": 320,
      "height": 180,
      "format": "JPEG",
      "sha256": "3550cb29344cfe3bd18e3e94a76b5103802e08894a196e8869be35a82fe59c40",
      "near_black_top_rows": 0,
      "near_black_bottom_rows": 0
    },
    {
      "video": "jf5U0rfS7gI",
      "variant": "hqdefault",
      "url": "https://i.ytimg.com/vi/jf5U0rfS7gI/hqdefault.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 9725,
      "width": 480,
      "height": 360,
      "format": "JPEG",
      "sha256": "83c68a395c11d285ce4fe6b45e7554600b12991b743d31468d722daa93f91e6f",
      "near_black_top_rows": 44,
      "near_black_bottom_rows": 44
    },
    {
      "video": "jf5U0rfS7gI",
      "variant": "sddefault",
      "url": "https://i.ytimg.com/vi/jf5U0rfS7gI/sddefault.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 34647,
      "width": 640,
      "height": 480,
      "format": "JPEG",
      "sha256": "1ec09c0a354fdb46c4b6f716951c605baa219952d7ec485869b0c1ff36e4deeb",
      "near_black_top_rows": 60,
      "near_black_bottom_rows": 60
    },
    {
      "video": "jf5U0rfS7gI",
      "variant": "maxresdefault",
      "url": "https://i.ytimg.com/vi/jf5U0rfS7gI/maxresdefault.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 80847,
      "width": 1280,
      "height": 720,
      "format": "JPEG",
      "sha256": "ccd87e9af99c266f22b9b449b3e061845c9846dcd443ca53f8e33684c217b494",
      "near_black_top_rows": 0,
      "near_black_bottom_rows": 0
    },
    {
      "video": "dOtuo5qrnlE",
      "variant": "default",
      "url": "https://i.ytimg.com/vi/dOtuo5qrnlE/default.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 1727,
      "width": 120,
      "height": 90,
      "format": "JPEG",
      "sha256": "ef368f8e67c706f6bd5809d33555e5c3b572bd152c943b76687245403852e517",
      "near_black_top_rows": 11,
      "near_black_bottom_rows": 11
    },
    {
      "video": "dOtuo5qrnlE",
      "variant": "mqdefault",
      "url": "https://i.ytimg.com/vi/dOtuo5qrnlE/mqdefault.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 5542,
      "width": 320,
      "height": 180,
      "format": "JPEG",
      "sha256": "162d64a5f05284b873240378d7adb43794a9154a41ed16c83f4c7a4d9ffc6365",
      "near_black_top_rows": 0,
      "near_black_bottom_rows": 0
    },
    {
      "video": "dOtuo5qrnlE",
      "variant": "hqdefault",
      "url": "https://i.ytimg.com/vi/dOtuo5qrnlE/hqdefault.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 8507,
      "width": 480,
      "height": 360,
      "format": "JPEG",
      "sha256": "1a497823d6fed896458487f83fcc2ac24ea79cad53d27a9056ee280259030fc8",
      "near_black_top_rows": 45,
      "near_black_bottom_rows": 45
    },
    {
      "video": "dOtuo5qrnlE",
      "variant": "sddefault",
      "url": "https://i.ytimg.com/vi/dOtuo5qrnlE/sddefault.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 35050,
      "width": 640,
      "height": 480,
      "format": "JPEG",
      "sha256": "1e28333de2adcd7cfba2d8bb7f973cfc0b21db3ecb4054ca588da5cc66c4bb0d",
      "near_black_top_rows": 60,
      "near_black_bottom_rows": 60
    },
    {
      "video": "dOtuo5qrnlE",
      "variant": "maxresdefault",
      "url": "https://i.ytimg.com/vi/dOtuo5qrnlE/maxresdefault.jpg",
      "status": 200,
      "mime": "image/jpeg",
      "bytes": 107574,
      "width": 1280,
      "height": 720,
      "format": "JPEG",
      "sha256": "d03751ee33fb2542cebb71388c42b5aba800df0bb66f8a0e39c12f454b750b2b",
      "near_black_top_rows": 0,
      "near_black_bottom_rows": 0
    }
  ]
}