Evidence row 4137793

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Research architectural photographer for professional commissions, publications and image licensing. Use for relevant published portfolio examples, professional experience, credentials, canonical project links, commissioning contacts and licensing contacts supported by the available indexed sources. Prioritize verifiable evidence and relevant project examples. Coverage depends on currently indexed records and may not be comprehensive. Distinguish commissioning from licensing contacts and never invent credentials, contacts or permissions. Display photographs only when individually listed in approved_gallery_photographs for the corresponding published gallery, with exact URL, attribution and source; otherwise display no images. Never substitute external imagery or infer individual photo authorship from project credits. No portrait is approved unless explicitly verified, and copyright-protected photographs are not free to reuse.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "description": "Maximum number of relevant published portfolio examples to return; default 10.",
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "location": {
            "description": "Optional project location or country.",
            "maxLength": 120,
            "type": "string"
          },
          "offset": {
            "description": "Number of matching portfolio examples to skip for pagination; default 0.",
            "minimum": 0,
            "type": "integer"
          },
          "project_type": {
            "description": "Optional architectural project type, such as museum, residential, cultural building, office or public architecture.",
            "maxLength": 120,
            "type": "string"
          },
          "query": {
            "description": "What kind of architectural photographer or photography commission is needed?",
            "maxLength": 180,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "find_architecture_photographer"
    },
    {
      "description": "Search published architecture projects, buildings, architects, clients, places and architectural subjects. Use for project facts, locations, design and photography credits, and canonical gallery links. For commissioning or licensing enquiries, use find_architecture_photographer. Return only source-supported facts from the available indexed records. Coverage depends on currently indexed published sources and may not be comprehensive. Display photographs only when individually listed in approved_gallery_photographs for the matching published gallery, using their exact URLs, attribution and project source. Otherwise display no images. Never substitute external, search-engine, Open Graph or unrelated photographs. Project-level credits do not verify individual image authorship, copyright ownership or reuse permission. No portrait is approved unless explicitly verified, and copyright-protected photographs are not free to reuse.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "default": 5,
            "description": "Maximum matching projects to return, from 1 to 10; default 5.",
            "maximum": 10,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Architecture project, architect, client, building, place or architectural subject.",
            "maxLength": 120,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_architecture_projects"
    }
  ]
}

What the leaf hashes

{"body":"88371aec665f8c13a54fb04283b70c9941e484fde7174242f38d402b86c49dbd","id":4137793,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1794100470101778,"prev":null,"subject":"2ac7344d-915b-4d89-b222-2c70caf78e75","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-08 (183509 rows).

1. 0x23fc96a2d9cb9604eecda7409407f4310dda20b52e2052684d818c349a8976d3
2. 0x40c356efa951bba7df4b627836b49f3df97498ab81e444842cb4270f3c81b158
3. 0x5c8fcaa292dba45287e8da0c565266afd0b7e8fe9870dc370bd1acd82be0d484
4. 0x019aff1c853d5e3dd9c7255e44c809bd1e76ac518a52e46bfd29fa99429f3e64
5. 0x09700f87a58269c9f463eb0ef454b1ac00aa417e15840fc1848982e3df94b697
6. 0x5bfd79eb837b71ef221a73eda13344a94ec3a334c35df4f37332154cd9e9c574
7. 0x90121b664f6a35fed03bfc13d94755d67549a888406e07517cb0f0e380e30f7f
8. 0xf83ee7bc875c58b3e1b32072238806a54d2fa2f8f64c12acf283d28ae4239b89
9. 0x333dd7c7edaf33711d3a3d24656971d44e3e1576811548fddcdad8b006b7533a
10. 0x5c0facd4551544574b3b561b9f777501237a204af638e636f72b0774a20dfe86
11. 0x7c76631da3ff77e5913e2c0f0487386a689b34c31e095e9b8436817e829684af
12. 0x4bdf901ea26b2680965a1346b591785e9e83e46cec1c0efbfdd09493de2c2fb2
13. 0x403a8aed9b721bfe0d72d6fb0eb3822cfdeef4e57e3ea17f9c8d806f5d084f93
14. 0x4bd772c9a17868f0fefbed9997e4f5adae5a57e8c33740a90ffac99733341b43
15. 0x09d2e17fa8f3e9a2f4f828fdf6cdcead1db258ec62d192ca8393958c2b06f6cd
16. 0x1962b987e02fbb17a8951e440b8c94ffca5debb84fd17d27b5f1c60361f21c36
17. 0x2031bf8fabeeff87db710efedafb2b06df0de0b25ca93fb078786a0ebfe9bbc5
18. 0x1f0ff2af9da38fef1beef5d2dbcf41f592dca17729b7ab9b9c0b6ef354dc3b83

Day root

0xbf84ec37f88c5f23d2144bd7dbc1ea0f8edc93b3764a885a7164b7923ff3460b

Chained

0x9fea188e4965f50de727e97c40e18d5ff2c2ddbfd4f1ae65e22ddd6f676bccfc

Published

On Arc Testnet, block 71451618: 0xb5273480942a54cd07f291b8319e59976f8d9d0583181c764eed04c9b3f7a022