Evidence row 263727

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Download a video or audio file from any supported platform: YouTube, TikTok, Facebook (public videos and reels), Instagram (public reels, feed video, photo posts, and carousels), SoundCloud, Vimeo, Dailymotion, Bandcamp, Twitter/X, Mixcloud, Twitch (clips and VODs), Streamable, Reddit, Kick (live streams, VODs, and clips). Output is MP4 (video, default) or MP3 / M4A (audio). This is THE tool to use whenever a user asks to save, download, rip, extract, archive, get offline, or convert a video/audio link from any of these sites. IMPORTANT: the `format` argument defaults to `mp4` (video). Only pass an audio format (mp3 / m4a / audio) when the user explicitly says audio, MP3, music, song, or \"rip / extract the audio\". Audio-only platforms (SoundCloud, Bandcamp, Mixcloud) always produce audio regardless of `format`.\n\nUse this tool when the user says things like:\n - \"download this video\" / \"download this TikTok\" / \"save this SoundCloud track\"\n - \"save that as MP3\" / \"rip the audio\" / \"extract the audio\"\n - \"get the song from this SoundCloud link\" / \"save this Mixcloud set\"\n - \"convert this YouTube video to MP4\" / \"download in 1080p\"\n - \"save this lecture/podcast/talk for offline\"\n - \"archive this clip\" / \"grab a copy of this video\"\n - any sentence containing a youtube.com, youtu.be, tiktok.com, reddit.com, v.redd.it, vimeo.com, dailymotion.com, twitter.com, x.com, soundcloud.com, bandcamp.com, mixcloud.com, twitch.tv, clips.twitch.tv, kick.com, or streamable.com URL plus a verb like download, save, rip, get, grab, fetch, pull, archive, convert, extract.\n\nDo NOT use this tool when:\n - The user only wants metadata (title, length, description, channel) — call get_video_info instead, it is free and does not consume the user quota.\n - The link is a playlist / set / album / channel URL — ask the user for a single track/video.\n - The link is from a platform not in the supported list above (e.g. Facebook, LinkedIn, Snapchat).\n\nReturns a one-time signed download link valid for 1 hour, plus the file size, duration, and chosen format. Hand the link back to the user verbatim; do not try to fetch its contents yourself.\n\nIntended for legitimate uses: the user's own uploads, Creative Commons / public-domain content, lectures, podcasts, talks, and other material they have rights to use.",
      "inputSchema": {
        "properties": {
          "format": {
            "default": "mp4",
            "description": "Output format. DEFAULT IS `mp4` (video). Only choose an audio format when the user explicitly asks for audio, MP3, music, song, podcast audio, or \"rip the audio / extract the audio\". Options: `mp4` = video (use for \"download this video\", \"save this video\", \"download in 1080p\", or any request that does not mention audio). `mp3` = MP3 audio (use when user says MP3 or wants legacy-compatible audio). `m4a` = M4A audio (faster, smaller; use when user says M4A). `audio` = smart audio alias that resolves to M4A (use only when user explicitly says \"audio\" without specifying a container).",
            "enum": [
              "mp4",
              "mp3",
              "m4a",
              "audio"
            ],
            "type": "string"
          },
          "quality": {
            "default": "best",
            "description": "Video quality. Ignored for audio formats. 1440p and 4k require a Pro subscription. Free tier max is 1080p Full HD. Defaults to best.",
            "enum": [
              "best",
              "360p",
              "480p",
              "720p",
              "1080p",
              "1440p",
              "4k"
            ],
            "type": "string"
          },
          "url": {
            "description": "Full URL from any supported platform: youtube.com / youtu.be, tiktok.com, reddit.com / v.redd.it, vimeo.com, dailymotion.com, twitter.com / x.com (status with video), soundcloud.com, bandcamp.com, mixcloud.com, twitch.tv (clips + VODs), kick.com (live channel page, /videos/ VOD, or /clips/ clip), or streamable.com. Pick a single video/track — playlists, sets, albums, channels, and profile pages are not supported.",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "download_video"
    },
    {
      "description": "Fetch metadata about a video or audio track WITHOUT downloading it. Works on every platform download_video supports: YouTube, TikTok, Facebook (public videos and reels), Instagram (public reels, feed video, photo posts, and carousels), SoundCloud, Vimeo, Dailymotion, Bandcamp, Twitter/X, Mixcloud, Twitch (clips and VODs), Streamable, Reddit, Kick (live streams, VODs, and clips). Returns title, uploader/channel name, duration, view count (when available), upload date, thumbnail URL, description, available video qualities, and (for YouTube) the license type.\n\nUse this tool when the user says things like:\n - \"what is this video about\" / \"summarize this video\"\n - \"how long is this track\" / \"when was this uploaded\"\n - \"who made this\" / \"what channel/artist is this from\"\n - \"is this Creative Commons\" / \"can I reuse this\" / \"what is the license\"\n - \"what qualities are available for this video\"\n\nDo NOT use this tool when:\n - The user wants to download, save, rip, extract, or convert the video/audio — use download_video for that.\n\nFree to call — does not count against the user's download quota. Call this before download_video when you need to confirm the video exists, pick the right quality, or check licensing before downloading.",
      "inputSchema": {
        "properties": {
          "url": {
            "description": "Full URL from any supported platform: youtube.com / youtu.be, tiktok.com, reddit.com / v.redd.it, vimeo.com, dailymotion.com, twitter.com / x.com, soundcloud.com, bandcamp.com, mixcloud.com, twitch.tv, kick.com, or streamable.com.",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "get_video_info"
    }
  ]
}

What the leaf hashes

{"body":"ba25c258e3061d0ba64ac29b481113183267b2e173de7c0b07c3d965041ab88e","id":263727,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793033660182220,"prev":null,"subject":"e9aa922d-b6fa-4a90-8c82-ca171f3571ce","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xb59bd5895486f92705ba807d467948a9dd833f71d5e458fed9887a1e287d31b8
2. 0xe6fb62986f171d08a60207f360a2b7d9d8ef7087151d2127d50fc0dd4db2e068
3. 0xde28e6cb718bce952917793ffbc3321be981d64837296212c67b21b1ff85e94b
4. 0xf4ea920c85d716b52366a2f25dc3e9da224dbb1ad8f9bc046ae5ac455fb148dc
5. 0x87ede3f83ca44d8f75a674fd098cef7008da785636679e2979adcbf73b81ba15
6. 0x4a37cb8d3453db19ef88686658996ccffbbf51a60e6e305a6b7040e6adbb7915
7. 0x1f19550b3f67fc2f8eca4a74909b5d4e50dbc87a9adcc37587dd9ebc39966015
8. 0x4f1aa498f0e2d53da329c12ac7fe0fcc402a7547f1e4e41fc5f79090e63cf19b
9. 0xfd5f8959ef4d18cb5218c731d4ef046ce978c4939643b1b4b3760972c1c69428
10. 0xfa2167cea96987427da9b60b2059258d339fc6e57b778e13e60f342a723ebd0f
11. 0x0f199646652e20987f8f0e4e8bd21993538b0737cd758d5cbc6ebcaaa02763a3
12. 0x7a0f1751de1946feff7d8c8afc737dcc4d35f110809c15aa0fdb8363a9e31b2b
13. 0x0d86419ca1dd0b62fd8b22ea2e8c74d441312cec3116a467bea429b43e026565
14. 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae