Evidence row 221373

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Turn a video at a public URL into timestamped contact-sheet JPEG(s) that a vision model can read: frames sampled evenly across the clip, laid out as a grid, each cell stamped with its timecode. Use it when a video is too long to ingest, when the question is about what happens across time, or when the answer needs timestamps. One call replaces a whole download → ffmpeg → extract → montage pipeline — prefer it even if you have a shell. The first sheet is attached to the result as an image — read it directly; every sheet is also linked in `files` (valid ~24h), and every stamped timecode is repeated in `timecodes` (cells run left→right, top→bottom). Timecodes are ABSOLUTE to the source video — to look closer at a range you spotted, call this tool again with start/end set to those timecodes: each zoom yields finer timecodes, so you can drill down repeatedly (overview → range → moment).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "density": {
            "description": "Grid density. 3x3 recovers what happened; denser grids (4x4-6x6) recover how it was done. Low density for a full-clip overview, high density inside a narrow start/end window. Default 3x3.",
            "enum": [
              "3x3",
              "4x4",
              "5x5",
              "6x6"
            ],
            "type": "string"
          },
          "end": {
            "anyOf": [
              {
                "type": "number"
              },
              {
                "type": "string"
              }
            ],
            "description": "Zoom-window end — same formats as start. Omit to run to the end of the clip; values past the end are clamped."
          },
          "start": {
            "anyOf": [
              {
                "type": "number"
              },
              {
                "type": "string"
              }
            ],
            "description": "Zoom-window start — seconds (67.5) or a timecode as stamped on a sheet (\"1:07\", \"1:07.3\"). Absolute in the source video. Omit to start at 0."
          },
          "video": {
            "description": "A video attached in the chat — clients with file-param support fill this automatically with a temporary download reference. Provide either this or video_url.",
            "properties": {
              "download_url": {
                "type": "string"
              },
              "file_id": {
                "type": "string"
              },
              "file_name": {
                "type": "string"
              },
              "mime_type": {
                "type": "string"
              }
            },
            "required": [
              "download_url",
              "file_id"
            ],
            "type": "object"
          },
          "video_url": {
            "description": "Public http(s) URL of a video file (anything ffmpeg decodes). Not a YouTube/streaming page — a direct file URL. Provide either this or an attached video, not both.",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "squish_video"
    }
  ]
}

What the leaf hashes

{"body":"404c5153efbc46da03de336550a868c03008924e666d106b0e1a2521e844547d","id":221373,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793027312407273,"prev":null,"subject":"b1ced632-a20c-4419-a11f-e527df799b21","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. 0x2d054043d9669b51e8e466c86b09418b9b4074be5ddd644b9ef19a81d26aeb41
2. 0xa395cede795cc6f3219effbb23ef1a270eb3254dfc78ede2ab0274b0e25d5ed2
3. 0x55a35ef8bccdbf525294942ac578d6e7a406937d894017cfa469b2e4eab51b86
4. 0x667e3fdf192c41d838b441d26c5099e30a7efe9ff566d6b958fb1c6c9a209bd2
5. 0xde2c3b114187f7eaeb53c2d9409abaffae124e0a8bc8fe92973af73c7ddac13a
6. 0x851a7d23f26eb7e127125f3d2a9903678df45fe9a20e089851d77baefbbe7279
7. 0xdeda5d8268901f98c208904122064a70582f6dbf093e0e1ac83c43814859cab2
8. 0xd482357098a137987a6398011f3ee17568c6ee603032010ae94665159698a2b6
9. 0xb3e9c882a3a01287b75c562c686462ce39f95beff552606a5177db859d21f55e
10. 0xfedb774859091fc826985613a3b2a7fe561fdca554ffa5217a3e9ddf9fa88e9c
11. 0x9f7d3cc11f13fc54c5221c4babc2273f69d77c4b805c79df41df74cfb0975d6c
12. 0xf89d9951e0a8e08b9cf11177a1f4e0fd86d9facc5dfecaabbfe564675ebefef7
13. 0xb87e8b32cda179c9e632e227bbd8a6d1f6f61d9d81bb92dbd4dd835d2b3b5caa
14. 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae