{
  "generated_at": "2026-05-03T17:41:19.051Z",
  "task_id": "93990183-3c8b-4cf8-a40e-aed644efced7",
  "sample_files": [
    {
      "path": "outputs/samples/mdn-flower.webm",
      "source_candidate_id": "mdn-flower-webm",
      "size_bytes": 554058,
      "downloaded_with": "curl -L --fail --silent --show-error https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.webm -o outputs/samples/mdn-flower.webm"
    }
  ],
  "discovery_evidence": {
    "browser_log": ".logs/playwright-discovery.log",
    "curl_log": ".logs/curl-verifications.tsv"
  },
  "candidates": [
    {
      "id": "mdn-flower-webm",
      "title": "Flower (MDN CC0 sample video)",
      "url": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.webm",
      "source_url": "https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video",
      "source_domain": "developer.mozilla.org",
      "license_note": "MDN interactive example media path labels this as cc0-videos.",
      "retained_reason": "Compact nature clip useful as a neutral motion/codec sample; downloaded as the retained sample.",
      "domain": "interactive-examples.mdn.mozilla.net",
      "media_type": "video/webm",
      "curl_verified": true,
      "curl_http_status": 200,
      "curl_content_type": "video/webm",
      "curl_content_length_bytes": 554058,
      "curl_effective_url": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.webm",
      "curl_verified_at": "2026-05-03T17:41:19.051Z",
      "curl_method": "HEAD",
      "curl_command": "curl -L -I https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.webm",
      "curl_error": null,
      "curl_verification": {
        "ok": true,
        "http_status": 200,
        "method": "HEAD",
        "content_type": "video/webm",
        "content_length_bytes": 554058,
        "url_effective": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.webm",
        "verified_at": "2026-05-03T17:41:19.051Z",
        "header_log": ".logs/curl-headers/mdn-flower-webm.headers.txt",
        "command": "curl -L -I https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.webm",
        "error": null
      }
    },
    {
      "id": "blender-big-buck-bunny-320",
      "title": "Big Buck Bunny 320x180 MP4",
      "url": "https://download.blender.org/peach/bigbuckbunny_movies/BigBuckBunny_320x180.mp4",
      "source_url": "https://peach.blender.org/download/",
      "source_domain": "peach.blender.org",
      "license_note": "Blender Open Movie project material associated with Big Buck Bunny.",
      "retained_reason": "Well-known open animated short; useful for animation, lighting, and compression research.",
      "domain": "download.blender.org",
      "media_type": "video/mp4",
      "curl_verified": true,
      "curl_http_status": 200,
      "curl_content_type": "video/mp4",
      "curl_content_length_bytes": 64657027,
      "curl_effective_url": "https://download.blender.org/peach/bigbuckbunny_movies/BigBuckBunny_320x180.mp4",
      "curl_verified_at": "2026-05-03T17:41:19.051Z",
      "curl_method": "HEAD",
      "curl_command": "curl -L -I https://download.blender.org/peach/bigbuckbunny_movies/BigBuckBunny_320x180.mp4",
      "curl_error": null,
      "curl_verification": {
        "ok": true,
        "http_status": 200,
        "method": "HEAD",
        "content_type": "video/mp4",
        "content_length_bytes": 64657027,
        "url_effective": "https://download.blender.org/peach/bigbuckbunny_movies/BigBuckBunny_320x180.mp4",
        "verified_at": "2026-05-03T17:41:19.051Z",
        "header_log": ".logs/curl-headers/blender-big-buck-bunny-320.headers.txt",
        "command": "curl -L -I https://download.blender.org/peach/bigbuckbunny_movies/BigBuckBunny_320x180.mp4",
        "error": null
      }
    },
    {
      "id": "internet-archive-big-buck-bunny-512",
      "title": "Big Buck Bunny 512kb MP4 (Internet Archive)",
      "url": "https://archive.org/download/BigBuckBunny_328/BigBuckBunny_512kb.mp4",
      "source_url": "https://archive.org/details/BigBuckBunny_328",
      "source_domain": "archive.org",
      "license_note": "Public item hosted by Internet Archive; source page should be reviewed before reuse.",
      "retained_reason": "Archive-hosted derivative provides alternate encoding/source provenance.",
      "domain": "archive.org",
      "media_type": "video/mp4",
      "curl_verified": true,
      "curl_http_status": 200,
      "curl_content_type": "video/mp4",
      "curl_content_length_bytes": 43315070,
      "curl_effective_url": "https://ia601903.us.archive.org/32/items/BigBuckBunny_328/BigBuckBunny_512kb.mp4",
      "curl_verified_at": "2026-05-03T17:41:19.051Z",
      "curl_method": "HEAD",
      "curl_command": "curl -L -I https://archive.org/download/BigBuckBunny_328/BigBuckBunny_512kb.mp4",
      "curl_error": null,
      "curl_verification": {
        "ok": true,
        "http_status": 200,
        "method": "HEAD",
        "content_type": "video/mp4",
        "content_length_bytes": 43315070,
        "url_effective": "https://ia601903.us.archive.org/32/items/BigBuckBunny_328/BigBuckBunny_512kb.mp4",
        "verified_at": "2026-05-03T17:41:19.051Z",
        "header_log": ".logs/curl-headers/internet-archive-big-buck-bunny-512.headers.txt",
        "command": "curl -L -I https://archive.org/download/BigBuckBunny_328/BigBuckBunny_512kb.mp4",
        "error": null
      }
    },
    {
      "id": "wikimedia-big-buck-bunny-trailer-400p",
      "title": "Big Buck Bunny Trailer 400p OGV",
      "url": "https://upload.wikimedia.org/wikipedia/commons/b/b3/Big_Buck_Bunny_Trailer_400p.ogv",
      "source_url": "https://commons.wikimedia.org/wiki/File:Big_Buck_Bunny_Trailer_400p.ogv",
      "source_domain": "commons.wikimedia.org",
      "license_note": "Wikimedia Commons file page indicates CC-BY-3.0 category in the browser snapshot.",
      "retained_reason": "Commons-hosted trailer with visible license/provenance metadata.",
      "domain": "upload.wikimedia.org",
      "media_type": "application/ogg",
      "curl_verified": true,
      "curl_http_status": 200,
      "curl_content_type": "application/ogg",
      "curl_content_length_bytes": 4360399,
      "curl_effective_url": "https://upload.wikimedia.org/wikipedia/commons/b/b3/Big_Buck_Bunny_Trailer_400p.ogv",
      "curl_verified_at": "2026-05-03T17:41:19.051Z",
      "curl_method": "HEAD",
      "curl_command": "curl -L -I https://upload.wikimedia.org/wikipedia/commons/b/b3/Big_Buck_Bunny_Trailer_400p.ogv",
      "curl_error": null,
      "curl_verification": {
        "ok": true,
        "http_status": 200,
        "method": "HEAD",
        "content_type": "application/ogg",
        "content_length_bytes": 4360399,
        "url_effective": "https://upload.wikimedia.org/wikipedia/commons/b/b3/Big_Buck_Bunny_Trailer_400p.ogv",
        "verified_at": "2026-05-03T17:41:19.051Z",
        "header_log": ".logs/curl-headers/wikimedia-big-buck-bunny-trailer-400p.headers.txt",
        "command": "curl -L -I https://upload.wikimedia.org/wikipedia/commons/b/b3/Big_Buck_Bunny_Trailer_400p.ogv",
        "error": null
      }
    },
    {
      "id": "nasa-go-forward-moon-small",
      "title": "Go Forward to the Moon (NASA small MP4)",
      "url": "https://images-assets.nasa.gov/video/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon~small.mp4",
      "source_url": "https://images.nasa.gov/details/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon",
      "source_domain": "images.nasa.gov",
      "license_note": "NASA media source; confirm NASA media guidelines for final publication use.",
      "retained_reason": "Public space-exploration footage/source candidate with multiple resolutions in NASA asset collection.",
      "domain": "images-assets.nasa.gov",
      "media_type": "video/mp4",
      "curl_verified": true,
      "curl_http_status": 200,
      "curl_content_type": "video/mp4",
      "curl_content_length_bytes": 15069524,
      "curl_effective_url": "https://images-assets.nasa.gov/video/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon~small.mp4",
      "curl_verified_at": "2026-05-03T17:41:19.051Z",
      "curl_method": "HEAD",
      "curl_command": "curl -L -I https://images-assets.nasa.gov/video/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon~small.mp4",
      "curl_error": null,
      "curl_verification": {
        "ok": true,
        "http_status": 200,
        "method": "HEAD",
        "content_type": "video/mp4",
        "content_length_bytes": 15069524,
        "url_effective": "https://images-assets.nasa.gov/video/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon~small.mp4",
        "verified_at": "2026-05-03T17:41:19.051Z",
        "header_log": ".logs/curl-headers/nasa-go-forward-moon-small.headers.txt",
        "command": "curl -L -I https://images-assets.nasa.gov/video/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon/NHQ_2019_0311_Go%20Forward%20to%20the%20Moon~small.mp4",
        "error": null
      }
    }
  ]
}
