Evidence row 309797

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Run the Employer cost calculator calculator: Employer National Insurance (15%); Employer pension; Apprenticeship levy (0.5%); True annual cost. Missing inputs fall back to their documented defaults.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "extras": {
            "default": 0,
            "description": "Other annual costs (benefits, equipment, insurance)",
            "maximum": 100000,
            "minimum": 0,
            "type": "number"
          },
          "levy": {
            "default": "0",
            "description": "Annual pay bill over £3m (apprenticeship levy)",
            "type": "string"
          },
          "pensionBasis": {
            "default": "qualifying",
            "description": "Pension calculated on",
            "type": "string"
          },
          "pensionRate": {
            "default": 3,
            "description": "Employer pension contribution",
            "maximum": 30,
            "minimum": 0,
            "type": "number"
          },
          "salary": {
            "default": 35000,
            "description": "Gross annual salary",
            "maximum": 1000000,
            "minimum": 0,
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "calculate"
    },
    {
      "description": "The inputs this calculator takes (with units, ranges and defaults), the outputs it returns, and the assumptions and tables behind it.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "calculator_describe"
    },
    {
      "description": "Read first. States plainly what submit_enquiry does on Employer Cost Calculator: it starts an enquiry with human providers who quote directly. Nothing is bought, ordered or paid; no quote is guaranteed; it is free. Also returns who receives the details, the consent wording, and how the person confirms.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "enquiry_describe"
    },
    {
      "description": "Every field of the Employer Cost Calculator enquiry: key, label, type, whether required, help text and the allowed options where there are any. Pass answers to submit_enquiry keyed by field key.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "enquiry_fields"
    },
    {
      "description": "Submits an enquiry to Employer Cost Calculator — NOT a purchase, NOT a guaranteed quote. Step 1: call with the answers (keyed by field key from enquiry_fields) and consent=true; it validates and returns a summary, the consent line and a confirmation token — show the person the summary and the consent line. Step 2: only if the person agrees, call again with the same answers, consent=true and the confirmation token; the enquiry is then submitted, and the person receives an email with a link they must click before any provider sees it. Consent means the person has read and agreed to: \"Send my contact details to up to three relevant accountants or payroll providers, chosen by Employer Cost Calculator, who'll contact me directly. I'll be emailed each firm's name as my details go to it, and can stop any more firms getting them.\"",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "answers": {
            "additionalProperties": {
              "type": [
                "string",
                "number",
                "boolean"
              ]
            },
            "description": "the person's answers, keyed by field key",
            "type": "object"
          },
          "confirmation": {
            "description": "the confirmation token from step 1, after the person has approved the summary",
            "type": "string"
          },
          "consent": {
            "description": "true only when the person has agreed to: Send my contact details to up to three relevant accountants or payroll providers, chosen by Employer Cost Calculator, who'll contact me directly. I'll be emailed each firm's name as my details go to it, and can stop any more firms getting them.",
            "type": "boolean"
          }
        },
        "required": [
          "answers",
          "consent"
        ],
        "type": "object"
      },
      "name": "submit_enquiry"
    }
  ]
}

What the leaf hashes

{"body":"6330aa5b3e82ab07600e66166e42a87778a02cd6288bd92352e51cb7a0d20e56","id":309797,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793059107223500,"prev":null,"subject":"61c5ccb6-975f-4396-8fd2-2ca17a85eef7","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. 0x87406a52e0700cc9b3880fa8c4cbce8608e0680e2275cebc83a0b43b5dd7ab43
2. 0x39e4951de10e6c33be203ff42ecd69472f14704ecf01a3790052e0e7fbc46cbc
3. 0x65d0c2156414e671cce0bcad573bed7a64b7d22f2a17cd5ddea9af0712b08888
4. 0x44900661db4230348a2ecf1716a67618e3f18b37bae1bc09cb25500d34246179
5. 0xad9a03a8365b17450b45100f14bbd2e380d1f101d590e2b18209f5874699d649
6. 0x5ad4efeefef323408cb3c2a7cb84177603b12edcd2bcbc5f54d54c049417ff41
7. 0xa413764b2f8332d6e90f6246784952723d9b10720e841091e78f13f6af48e3cb
8. 0x4aaf3c2b5c3020e3310d7b8dbfb30dd1904e03a61ec9fb313cb835670cbf4dd3
9. 0x7b2976196c9b25971163056b328d8763d70574c3666530f78174e5bf336c349b
10. 0xfdf107aa7e93af826b3c8955b5f09469f1ffacb9f1e76e1b4fabeb215b3414b7
11. 0xaa315896c61e14116f01ecf0dd5aec1ebbd01bc8562fed10b0a3e3dd6bce0924
12. 0x099dd43573993f2a1bea674129b7ed050429a0ac76c3bfda8aaf82a3af126469
13. 0x49d11be052a4c069b10250aaba214f566b3f2e5aaa7a98e82ccc6a71c0e801a0
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae