Evidence row 223173

What was observed

{
  "count": 7,
  "tools": [
    {
      "description": "Calculate an auditable material takeoff from explicit geometry or a\n    supported SmartScale/ProtoGen measurement payload. Returns net, explicit\n    waste-adjusted, and conservative purchase quantities. This is a planning\n    estimate, not a guaranteed material order or professional certification.",
      "inputSchema": {
        "properties": {
          "items": {
            "items": {
              "additionalProperties": true,
              "type": "object"
            },
            "title": "Items",
            "type": "array"
          },
          "options": {
            "anyOf": [
              {
                "additionalProperties": true,
                "type": "object"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Options"
          },
          "payment_ref": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Payment Ref"
          },
          "request_id": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Request Id"
          }
        },
        "required": [
          "items"
        ],
        "title": "calculate_takeoffArguments",
        "type": "object"
      },
      "name": "calculate_takeoff"
    },
    {
      "description": "Return fleet-standard capabilities, version, pack digest, disclaimer,\n    composition role, and pricing.",
      "inputSchema": {
        "properties": {},
        "title": "describe_agentArguments",
        "type": "object"
      },
      "name": "describe_agent"
    },
    {
      "description": "Return one assembly's formula, required dimensions, material factors,\n    purchase increment, sources, and material-pack lineage.",
      "inputSchema": {
        "properties": {
          "assembly_type": {
            "title": "Assembly Type",
            "type": "string"
          }
        },
        "required": [
          "assembly_type"
        ],
        "title": "get_assemblyArguments",
        "type": "object"
      },
      "name": "get_assembly"
    },
    {
      "description": "Return the bundled factors, densities, coverages, waste defaults,\n    purchase increments, unit conversions, sources, and raw-pack SHA.",
      "inputSchema": {
        "properties": {},
        "title": "get_material_packArguments",
        "type": "object"
      },
      "name": "get_material_pack"
    },
    {
      "description": "List supported assemblies, required dimensions, formulas, waste\n    defaults, and the current material-pack digest.",
      "inputSchema": {
        "properties": {},
        "title": "list_assembliesArguments",
        "type": "object"
      },
      "name": "list_assemblies"
    },
    {
      "description": "List the bundled material pack version, digest, coverage, shapes,\n    rebar sizes, roof pitches, and explicit unsupported policy.",
      "inputSchema": {
        "properties": {},
        "title": "list_material_packArguments",
        "type": "object"
      },
      "name": "list_material_pack"
    },
    {
      "description": "Recompute a takeoff audit hash, notary payload, pack currency, and QT9\n    unit-resolved conservation. Pass the prior result object as JSON.",
      "inputSchema": {
        "properties": {
          "result_json": {
            "title": "Result Json",
            "type": "string"
          }
        },
        "required": [
          "result_json"
        ],
        "title": "verify_resultArguments",
        "type": "object"
      },
      "name": "verify_result"
    }
  ]
}

What the leaf hashes

{"body":"4da1686c6440f6ab629058743e00f19d0eb2373956be98551dba8044a74420f5","id":223173,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793028538705533,"prev":null,"subject":"302a6016-4772-4748-8f71-b8159cfee1dc","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. 0xa12058acc496a0bdc1cd016cedacf59712293fada026fabab21f3cf1ca55e020
2. 0x55b6432d92c0f157b7a0dd19a44863de3e5cd2e3b58063cdca4cdbb1bbe1ea45
3. 0x677c5225983e0a46f8dc7ef4ceb5e1b140b2f8ccb550c2b83ee3a6cf792800a9
4. 0x4517e61fa365e9cc2a396c47743ddacb2c3beb1b4ecc580b0568b7fbd5db0cb7
5. 0xcd543e2b315229411464a6656e6ca2ef8bb9b6701366ebb9e55ab3666c6b0f11
6. 0x2dcbab39d339f4f107ba9d2f6440ced7c03ffcb8fc2e52c0e0c1744a3052a742
7. 0x215e265d013971537aac405f99fe97740d460883727f69af9c724f7b3b7595f2
8. 0x71d0961d810774eb7c13f64ca7af3acd6ee4cd530f2e76742a0ec3b4a8545a9f
9. 0x2e341f6252adb787d6fe8df067d94cbcaff1f0c719bb94ffe8b610366b780599
10. 0x848cf5e604d5f0c62cc02d3abe512164430820fceefd529d003cbca06e431809
11. 0x6e2c6fb1ec16c0d8a0fa917725bdfc512e7ed9f39e77d64f0a911d30e68a27de
12. 0x95576cc3dd18642c859f679cefa1cf80bfc6c690b065916c3585b14e8ef4b1b3
13. 0xf8d3e004d9a208d2c5e82ab676956d80f8a3c78387c61dad15a3a8269efee0d8
14. 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae