Evidence row 304783

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Calculate how many identical boxes fit in a rectangular space, and where.\n\n        The space is a shipping container, a pallet area, leftover container space,\n        or a larger box. Give the box's L/W/H and EITHER a `container` preset OR the\n        space's L/W/H (all in millimetres - container presets are mm). Boxes mix\n        orientations across regions to pack densely; the plain maximum-load answer\n        uses the exact T1 solver.\n\n        Args:\n            box_length: Box length.\n            box_width: Box width.\n            box_height: Box height.\n            container: Container preset instead of explicit space dims (fills the\n                internal usable L/W/H in mm; overrides space_* when recognised).\n                ISO dry: 20GP 20HQ 40GP 40HQ 45GP 45HQ; NA domestic: 53HC 48HC;\n                reefers: 20RF 40RF 40RH; EU pallet-wide: 40HQ-PW 45HQ-PW. Many\n                aliases (20/40/45, 20ft, 40HC, 40', 40 reefer, ...).\n            space_length: Space length (front-back). Use this OR `container`.\n            space_width: Space width (left-right).\n            space_height: Space height (up).\n            count: How many boxes to load. 0 (default) loads the maximum.\n            to_front: Anchor a partial load to the front (else the back).\n            to_left: Anchor a partial load to the left (else the right).\n            to_bottom: Kept for compatibility, no effect: boxes always rest on\n                the floor.\n            box_weight: Weight of one box (optional; same unit as max_weight).\n            max_weight: Max total load weight (optional; 0 = no weight limit).\n            include_image: Set true ONLY when the user wants to SEE or visualize\n                the loading plan / 3D layout (e.g. \"show the loading plan\",\n                \"visualize it\", \"what does it look like?\"). Default false is\n                faster and lighter and still returns `image_url`, a shareable\n                link to the 3D render. When true, the image is ALSO embedded\n                inline (Claude Desktop and Cherry Studio display it; the\n                claude.ai web app shows only the link either way).\n\n        Returns the maximum that fits, how many were loaded, the fill rate, the\n        region/block decomposition (each block's position, orientation, and\n        grid), any weight limit applied, an `image_url` link to the rendered 3D\n        loading plan, and - when include_image is true - the inline image too.\n        ",
      "inputSchema": {
        "properties": {
          "box_height": {
            "title": "Box Height",
            "type": "integer"
          },
          "box_length": {
            "title": "Box Length",
            "type": "integer"
          },
          "box_weight": {
            "default": 0,
            "title": "Box Weight",
            "type": "integer"
          },
          "box_width": {
            "title": "Box Width",
            "type": "integer"
          },
          "container": {
            "default": "",
            "title": "Container",
            "type": "string"
          },
          "count": {
            "default": 0,
            "title": "Count",
            "type": "integer"
          },
          "include_image": {
            "default": false,
            "title": "Include Image",
            "type": "boolean"
          },
          "max_weight": {
            "default": 0,
            "title": "Max Weight",
            "type": "integer"
          },
          "space_height": {
            "default": 0,
            "title": "Space Height",
            "type": "integer"
          },
          "space_length": {
            "default": 0,
            "title": "Space Length",
            "type": "integer"
          },
          "space_width": {
            "default": 0,
            "title": "Space Width",
            "type": "integer"
          },
          "to_bottom": {
            "default": true,
            "title": "To Bottom",
            "type": "boolean"
          },
          "to_front": {
            "default": true,
            "title": "To Front",
            "type": "boolean"
          },
          "to_left": {
            "default": true,
            "title": "To Left",
            "type": "boolean"
          }
        },
        "required": [
          "box_length",
          "box_width",
          "box_height"
        ],
        "title": "pack_boxes_toolArguments",
        "type": "object"
      },
      "name": "pack_boxes"
    },
    {
      "description": "Send a question, suggestion, or bug report about this container-loading tool to the Zhihuo maintainers.\n\n        Use this when the user wants to ask the tool's authors a question,\n        suggest an improvement (e.g. another container type or output field),\n        or report a result that looks wrong. The note reaches the Zhihuo team.\n\n        Args:\n            message: The question, suggestion, or bug report, in plain text.\n            contact: Optional email or handle if the user would like a reply.\n            category: Optional tag - \"question\", \"suggestion\", \"bug\", or \"other\".\n\n        Returns a short confirmation string.\n        ",
      "inputSchema": {
        "properties": {
          "category": {
            "default": "",
            "title": "Category",
            "type": "string"
          },
          "contact": {
            "default": "",
            "title": "Contact",
            "type": "string"
          },
          "message": {
            "title": "Message",
            "type": "string"
          }
        },
        "required": [
          "message"
        ],
        "title": "send_feedback_toolArguments",
        "type": "object"
      },
      "name": "send_feedback"
    }
  ]
}

What the leaf hashes

{"body":"18d7e04045323f51b4bd9981e5778cf9e7c9f3b8ad617b9125a195dd9d321eee","id":304783,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793056085787302,"prev":null,"subject":"82c9e640-0e10-4563-a997-b09dfbaa5c33","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. 0x61e4dc68d209266c85cbc2df9a9f050928cc90ab43962c6424dd5dd4698401ef
2. 0xa0d0c1f268d7ade0e8a1ae53a994091ff61fc35e5e7be9ce7f701c2c95b42871
3. 0x6f4a0ab7a77c19a2f4ee4cfb47bffa501237006f40bba03c4dcca56de1697959
4. 0x8b4ab290410ccf4035a53443f4cdda8027f9ea42975320259af870d112ca7580
5. 0x403609101bdbe9a67d87baaad8b9cc31f0e13e20236df22dc1a0bd1f9c5eaa9e
6. 0xa3af14ce695af6e6caa6e4808e424c75c22c9e7ff6524e18fd08f38781f46136
7. 0x0c6308654c20230df2116c06258fa563759b5464485dd965ec6553d17f4b9234
8. 0x893afd4d5c50ebf8ca5224bd4dffd2daec57a7e69a6282b4e798a59843c92aff
9. 0x13441f153372e013c04778a34a9ff337f9833e82144ed3f866eff5095bda7643
10. 0x4bd779681baa37c7b5e97fc4428314d20a148dc23dbb29b5e37888d340cbe8ec
11. 0x3d00f56ff37fbd465b8abeb2be25801b2734d79745152d15324c296fa2518752
12. 0x7285c0b02d1aedd949b8ba0c7b2499f7121588ebdd4c96ef8725919bb84dd534
13. 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae