Evidence row 1225152

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Exact layout of a through dovetail joint, for hand-cut joints and router templates. Hand mode: give the board width, the thicknesses of both boards, the number of tails, the pin width at its narrow end and the angle (degrees per side, 1:N slope ratio, included angle or degrees from horizontal), in mm or inches; the tail width is computed. Router mode: give the tail width instead; the pins are spaced evenly and the router template is sized. Returns every tail and pin position and width on both faces (they sum exactly to the board width), tail and pin lengths, the angle in all four conventions, and warnings. Given measured socket dimensions, also recommends tail widths that fit them. Deterministic: use this instead of computing dovetail geometry yourself.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "angle": {
            "description": "Dovetail angle, read according to angleFormat. It must give a per-side angle from 1° to under 45°.",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "angleFormat": {
            "default": "per_side_from_vertical",
            "description": "How to read angle: degrees per side from vertical (router bits: 7, 8, 14), slope ratio N for 1:N (6 for 1:6), included angle in degrees, or degrees from horizontal.",
            "enum": [
              "per_side_from_vertical",
              "slope_ratio",
              "included_angle",
              "from_horizontal"
            ],
            "type": "string"
          },
          "boardWidth": {
            "description": "Width of both boards across the joint. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "guideBushingDiameter": {
            "description": "Router mode: guide bushing diameter, larger than the bit. Default: the bit diameter plus 7 mm. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "measuredSockets": {
            "description": "Socket dimensions as actually cut, measured on both sides. When given, the response recommends tail widths that fit them.",
            "properties": {
              "left": {
                "properties": {
                  "baseWidth": {
                    "description": "Socket width on the outside face of the pin board: the wide side. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
                    "exclusiveMinimum": 0,
                    "type": "number"
                  },
                  "depth": {
                    "description": "Socket depth: for through dovetails, the pin board thickness. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
                    "exclusiveMinimum": 0,
                    "type": "number"
                  },
                  "tipWidth": {
                    "description": "Socket width on the inside face of the pin board, where the tail enters: the narrow side. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
                    "exclusiveMinimum": 0,
                    "type": "number"
                  }
                },
                "required": [
                  "tipWidth",
                  "baseWidth",
                  "depth"
                ],
                "type": "object"
              },
              "right": {
                "properties": {
                  "baseWidth": {
                    "description": "Socket width on the outside face of the pin board: the wide side. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
                    "exclusiveMinimum": 0,
                    "type": "number"
                  },
                  "depth": {
                    "description": "Socket depth: for through dovetails, the pin board thickness. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
                    "exclusiveMinimum": 0,
                    "type": "number"
                  },
                  "tipWidth": {
                    "description": "Socket width on the inside face of the pin board, where the tail enters: the narrow side. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
                    "exclusiveMinimum": 0,
                    "type": "number"
                  }
                },
                "required": [
                  "tipWidth",
                  "baseWidth",
                  "depth"
                ],
                "type": "object"
              }
            },
            "required": [
              "left",
              "right"
            ],
            "type": "object"
          },
          "mode": {
            "default": "hand",
            "description": "hand: give pinWidth, the tail width is computed. router: give tailWidth, the pins are spaced evenly.",
            "enum": [
              "hand",
              "router"
            ],
            "type": "string"
          },
          "numberOfTails": {
            "description": "Number of tails.",
            "maximum": 30,
            "minimum": 1,
            "type": "integer"
          },
          "pinBoardThickness": {
            "description": "Thickness of the board the pins are cut on. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "pinWidth": {
            "description": "Required in hand mode: pin width at its narrow end (the outside face of the pin board). Edge pins get the same narrow width. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "routerBitDiameter": {
            "description": "Router mode: dovetail bit diameter, at most the tail width. Default: 8 mm, or the smallest bit that cuts the depth of the tails if larger. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "tailBoardThickness": {
            "description": "Thickness of the board the tails are cut on. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "tailWidth": {
            "description": "Required in router mode: tail width at its wide end. Between 0.5 and 5000 mm (0.02 to 196.85 in).",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "unit": {
            "default": "mm",
            "description": "Unit of every length in the request and in the response.",
            "enum": [
              "mm",
              "inch"
            ],
            "type": "string"
          }
        },
        "required": [
          "boardWidth",
          "tailBoardThickness",
          "pinBoardThickness",
          "numberOfTails",
          "angle"
        ],
        "type": "object"
      },
      "name": "dovetail_layout"
    }
  ]
}

What the leaf hashes

{"body":"6b42f66d5dac8474bbc5e4ce452ef9ac4198345a6072f1faa28a0a6db49ef2dd","id":1225152,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793325969655231,"prev":null,"subject":"d5de8566-0272-4c40-a1ed-5689e0f5c37c","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0xe89fd695559fc0306c92967b5f5cf3fe3ff4c7e36d5a521edaa71a946781bee0
2. 0x94d6607a3b240692962eb442e6c48aeeabe783a67f35f585f044dc5cdff95500
3. 0x576a5566cd90b2cac1b7283fa5c7fbaa5d5184efba1ce8ab7bfe47843322e0b9
4. 0xfcd57b07961228e1a2ae0abde2eed067c29c6f53e44d742b8eaee0c9768610f8
5. 0x0da40c6594e4fef9cc1c43439eabd34caedc097f10fcd70838787e2f06caeb5e
6. 0x9dcc0f672210627c9963c03b5b579a50c4c4c2ecdc86c484d7c207fa14327ff0
7. 0x918e56b812e2af8fdb1cda8e22d7af5d13aca3bcc7679a2aca76eb961173ab30
8. 0x965b294dc0c85dee5f6165536ae7a317316e81b9a5ab522bdb244a0d141cb399
9. 0xe28b835ffac2cad72e73f67bc965a9814e75dc30d63c4df9c1c3e68fe30998f0
10. 0xa23c1d2607c97c03791af0998482afb596843cc7194a618a82f970d816e3e2f6
11. 0xfb38e63e65319af67a9057fd471b981b0af0222ac44244108295652819e5665a
12. 0xb92e78d48115ea6720d21699267631e6ac248ee86443090698cff054196176c5
13. 0xfbc54bb68398dda4b439809764b90c546b18332d8f5c47b62a26f520efc65735
14. 0x3a7a0fa82cbf8d3f1546fc6f89c9a5f35e025db7170b70e3f2dcd72b4ebb0f8e
15. 0xea7df1002501052c124b5aed2b1a5df3d59be54394c6a8539c86fad1df339a9e
16. 0xfbe61dc2d59668ac573e5eab865747e21d38bf2fe4c64762beef01f1018a4dea
17. 0x71e74c274b23c9047354edb6dcd2c654415e3986b8bd875dae992996ea12e22b
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861