Evidence row 2533130

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Gets one Siena dinner in full: date and time, where it happens, table size, seat price, the booking window and the cancellation rule. The restaurant stays private until Siena emails it on the Wednesday before.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "dinner_id": {
            "description": "The dinner id from list_upcoming_dinners, for example \"london-2026-11-05\". A Thursday date such as \"2026-11-05\" also works.",
            "maxLength": 40,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "dinner_id"
        ],
        "type": "object"
      },
      "name": "get_dinner"
    },
    {
      "description": "Explains how Siena friendship dinners work: sign-up, matching, the Wednesday email, the seat price and Premium, cancellation and refunds, and links to the policies.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "how_it_works"
    },
    {
      "description": "Lists the cities where Siena runs friendship dinners, with the dinner night and time. Siena runs in London only today.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "list_cities"
    },
    {
      "description": "Lists upcoming Siena friendship dinners in a city between two dates, and says which ones are open to book. Siena holds one dinner a week, on Thursday at 7:30pm London time, for small groups of strangers who want to make friends. A few holiday Thursdays have no dinner, and the list leaves them out. Booking for a Thursday opens on the Wednesday two weeks before and closes on the Tuesday before at 23:59. With no dates, the tool lists the next 4 Thursdays. It lists up to 12 weeks ahead.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "city": {
            "description": "City name or id. Only \"London\" has dinners. Defaults to London.",
            "maxLength": 80,
            "type": "string"
          },
          "from": {
            "description": "First date to include, yyyy-mm-dd, London time. Defaults to today.",
            "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
            "type": "string"
          },
          "to": {
            "$ref": "#/properties/from",
            "description": "Last date to include, yyyy-mm-dd, London time. Defaults to 4 weeks after from."
          }
        },
        "type": "object"
      },
      "name": "list_upcoming_dinners"
    },
    {
      "description": "Returns the link where the person books a seat at a Siena dinner on sienasociety.com. It books nothing and charges nothing. On the website the person signs up or signs in, answers six short questions the first time, and pays for the seat. Never ask for card details or personal data in chat.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "dinner_id": {
            "description": "The dinner id from list_upcoming_dinners, for example \"london-2026-11-05\". A Thursday date such as \"2026-11-05\" also works.",
            "maxLength": 40,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "dinner_id"
        ],
        "type": "object"
      },
      "name": "start_booking"
    }
  ]
}

What the leaf hashes

{"body":"2c0033b2db3d43f8de4bc62351a7e66dfe30776de2d3023eab766e0da4119689","id":2533130,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793684058524960,"prev":null,"subject":"1c8222b9-85b0-4b78-a118-40c2573b3532","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0x1d5b62114fff9a29cce6a30a85e21081203af4a626c1f0011e22b442a0c460b3
2. 0x8148691c4f6c5b8c609082866db28985cef654856c334d2fb11fb390ed9a5630
3. 0x8d0098f8b497bd1b73d5c2ec99722065aadd06b6028457b4486e119001a93224
4. 0x3b2f4bece9d31a27de7662633935c36edef5a29061b5cfd2bde644ce7e71f71b
5. 0x8732c7ffae7f7b48311a3d5b05556584b81b3ee708d7548982c4c867ee4feec0
6. 0x4c3913000cb761487812b7680c7ddd1c7d52e143a9c7df1fbb87d4448f38bb62
7. 0x1c464df6c738ea3c948e0c2c81a9d9b3b0265b1933da24616b456501fbe8cdd2
8. 0xe6f78fec5b4a03de98f554d3a251da5c5c461ad6a08edfbf7e040a7fa0f4f979
9. 0x0bddb00c1e247a5b646bc1c0da66282a81765369555c46e77b24400d6427b612
10. 0x9e9e60541d9bd09999126c98b2eb8ec7464b84082dabb28b4e1f736b1db5f71a
11. 0xa4c98f02ba1716452ca96ae24c1e3fe04382e345ac31b688db37892b8ca9334a
12. 0x1554e3bea31760b4ffaf14fb411d2319262f4fcef278efd42b812abad2b6ac39
13. 0xa865c151caf5b808863a56eafe459ed6980ba5c059246ed92e8d9688c9ef7fe7
14. 0xa1b9921bde76812f1ccbe5230e9921311a3aeab7f9d6861066c6dd5b532d126e
15. 0x711583ccee5cdd04f5adf1bada00491547d886e40ddf1799b012e27be2a663c2
16. 0xbaff679935afdbe869b23e88acf4edb06c80c1bc21fbe841145699495a3e2db3
17. 0xa82fcd0af08a38380e777cb578b71498d941c589c6401f31d445e1685adcc978
18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7