Evidence row 304446

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Render a video from a text prompt using ViewMax Studio. Returns immediately with a job id; the clip is not ready yet.\n\nRendering takes roughly two to four minutes. Call `get_video` with the returned id to collect the result, waiting about 15 seconds between checks. Do not poll faster than that, and tell the user it is rendering rather than going silent while you wait.\n\nCredits are charged to the account the API key belongs to, and refunded automatically if the render fails. Available models:\n  - seedance-2-mini: Native audio and multi-shot cuts in one clip. Longest takes we offer. (4–15s, 480p/720p/1080p, with audio)\n  - h3-max: Native 768p with no upscale pass. Fastest turnaround, up to 15s takes. (5–15s, 480p/768p, with audio)\n  - h3-max-turbo: Half the price of H3 Max at the same sizes, and the quickest render we carry. (5–15s, 480p/768p, with audio)\n  - viewmax-agent-2.0: Writes, cuts and scores a whole video from one brief, at any length you ask for. (15s and up, 720p, with audio)\n\nLeave `model` unset to use the default. Call `list_video_models` if you need exact per-model limits or prices.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "aspectRatio": {
            "description": "Frame shape. Use \"9:16\" for phone-first platforms, \"16:9\" for landscape, \"21:9\" for cinematic.",
            "enum": [
              "21:9",
              "16:9",
              "4:3",
              "1:1",
              "3:4",
              "9:16"
            ],
            "type": "string"
          },
          "duration": {
            "description": "Clip length in seconds, as a string, e.g. \"5\". Which lengths are accepted depends on the model.",
            "type": "string"
          },
          "generateAudio": {
            "description": "Whether a model that renders its own soundtrack should. Ignored by silent models.",
            "type": "boolean"
          },
          "model": {
            "description": "Which model renders it. Omit for the default model.",
            "enum": [
              "seedance-2-mini",
              "h3-max",
              "h3-max-turbo",
              "viewmax-agent-2.0"
            ],
            "type": "string"
          },
          "negativePrompt": {
            "description": "What to keep out of the clip. Optional.",
            "maxLength": 500,
            "type": "string"
          },
          "prompt": {
            "description": "What the clip should show. Describe subject, action, camera move and lighting; vague prompts render poorly.",
            "maxLength": 2000,
            "minLength": 5,
            "type": "string"
          },
          "resolution": {
            "description": "Output resolution. Larger costs proportionally more.",
            "enum": [
              "480p",
              "720p",
              "768p",
              "1080p"
            ],
            "type": "string"
          }
        },
        "required": [
          "prompt"
        ],
        "type": "object"
      },
      "name": "generate_video"
    },
    {
      "description": "How many ViewMax Studio credits the API key holder has left. Worth checking before booking an expensive render, since one that cannot be paid for is refused outright.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_credit_balance"
    },
    {
      "description": "Look up a render started by `generate_video`. While `status` is \"pending\" or \"processing\" the clip is still being made, so wait about 15 seconds and check again. When it is \"completed\" the result carries a public URL anyone can open, which you should hand the user directly. When it is \"failed\" the credits have already been refunded.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "The job id returned by `generate_video`.",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_video"
    },
    {
      "description": "Every video model on offer with its exact limits and credit prices: which lengths, resolutions and frame shapes it accepts, whether it renders audio, how long it takes, and what a second of output costs. Use it to choose a model on price or capability, or to quote a cost before rendering.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_video_models"
    }
  ]
}

What the leaf hashes

{"body":"66cfa7ada016707db7b7a53fbc1d2082c40b4abe6766453851ef6abe0d09f2fc","id":304446,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793055892557331,"prev":null,"subject":"04be42e3-f316-4696-af8c-9bf1bc45da86","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. 0xbfceb043ddf878dc10083a3d9091e9800755232cb3f8bf8ebf7227c3f95ec1fe
2. 0xad892c4584dc548ba2889596e5090532a21f80dfe1db141d8b25992088c16bd6
3. 0x4a2dc9baf086adca1cea298cf1412321680d6f566517a8110dce49688a7dbeda
4. 0xa2f971af4ef6d619de1d665d5b184d93eb5e4afa56e87ca1bf868478347de50c
5. 0xf6b2f49a03cf424ad73f89a05653b63ddb0878237088a902c748cc3860b878c7
6. 0x48e7a948205194b5ecf9f224e1439a2786d062df2b1f7ff9a275b81cb8ce1ff6
7. 0xa902697842cfc29e1877105d87ec3e2880784e53fdbe49168fa8742f43f06967
8. 0xa400c634e38837a6ff51434c33c8a8ab1bc2ed20aef280a25b20d16394b66882
9. 0xb3160580eccc8e8d67bacf38c4e880e2e476c81637f8d5327a5b0c5ea59c074b
10. 0xb33388c24233bd0f8d79ebb3c3ccad47f73830bca7936d0dea5659e86f4fa250
11. 0x1ee01b339a84463f4b1d9b89cf58bd877e8b7f91bd1aa7bb362bc554f4a1cae7
12. 0xc520305226daa0caf1c2416854f726ec072c950c1903497b2a1e88b0c6f406da
13. 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae