Evidence row 300612

What was observed

{
  "count": 14,
  "tools": [
    {
      "description": "Add a contact to a campaign (mailing list). GetResponse processes this asynchronously and returns HTTP 202 (queued) with no body — the contact appears in the list within a few minutes. REST: POST /contacts.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "campaignId": {
            "description": "The campaign (list) id to add the contact to (required).",
            "type": "string"
          },
          "dayOfCycle": {
            "description": "Autoresponder cycle day to place the contact on (→ dayOfCycle).",
            "maximum": 9007199254740991,
            "minimum": -9007199254740991,
            "type": "integer"
          },
          "email": {
            "description": "Contact email address (required).",
            "type": "string"
          },
          "ipAddress": {
            "description": "Contact IP address, used by GetResponse for geolocation.",
            "type": "string"
          },
          "name": {
            "description": "Contact name (defaults to 'Friend' if omitted).",
            "type": "string"
          },
          "note": {
            "description": "A free-text note to attach to the contact.",
            "type": "string"
          },
          "tags": {
            "description": "Array of tag ids to apply to the contact.",
            "items": {
              "type": "string"
            },
            "type": "array"
          }
        },
        "required": [
          "email",
          "campaignId"
        ],
        "type": "object"
      },
      "name": "getresponse_create_contact"
    },
    {
      "description": "Delete (remove) a contact from the account. This unsubscribes them and deletes their data. REST: DELETE /contacts/{contactId}.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "contactId": {
            "description": "The contact id to delete.",
            "type": "string"
          },
          "ipAddress": {
            "description": "Optional IP address to record for the deletion (→ query[ipAddress]).",
            "type": "string"
          },
          "messageId": {
            "description": "Optional id of the message this deletion is attributed to (→ query[messageId]).",
            "type": "string"
          }
        },
        "required": [
          "contactId"
        ],
        "type": "object"
      },
      "name": "getresponse_delete_contact"
    },
    {
      "description": "Get the authenticated GetResponse account profile (id, email, name, company, plan, timezone, etc.). REST: GET /accounts.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {},
        "type": "object"
      },
      "name": "getresponse_get_account"
    },
    {
      "description": "Get a single campaign (mailing list) by id, including subscription confirmation settings. REST: GET /campaigns/{campaignId}.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "campaignId": {
            "description": "The campaign (list) id — the alphanumeric token, not the numeric id.",
            "type": "string"
          }
        },
        "required": [
          "campaignId"
        ],
        "type": "object"
      },
      "name": "getresponse_get_campaign"
    },
    {
      "description": "Get a single contact by id, including campaign membership, tags, custom field values and engagement scoring. REST: GET /contacts/{contactId}.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "contactId": {
            "description": "The contact id.",
            "type": "string"
          },
          "fields": {
            "description": "Comma-separated list of fields to return, e.g. \"name,email\" (GetResponse `fields`).",
            "type": "string"
          }
        },
        "required": [
          "contactId"
        ],
        "type": "object"
      },
      "name": "getresponse_get_contact"
    },
    {
      "description": "Get a single newsletter (email broadcast) by id, including its status and send settings. REST: GET /newsletters/{newsletterId}.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "newsletterId": {
            "description": "The newsletter id.",
            "type": "string"
          }
        },
        "required": [
          "newsletterId"
        ],
        "type": "object"
      },
      "name": "getresponse_get_newsletter"
    },
    {
      "description": "List autoresponders (drip/cycle emails sent automatically on a schedule after subscription). Paginated. REST: GET /autoresponders.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "page": {
            "description": "1-based page number (pagination).",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "perPage": {
            "description": "Records per page (GetResponse `perPage`; default 100, max 1000).",
            "exclusiveMinimum": 0,
            "maximum": 1000,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "getresponse_list_autoresponders"
    },
    {
      "description": "List the account's campaigns — GetResponse's name for mailing lists a contact can subscribe to. Paginated. Optional name filter and sort. REST: GET /campaigns.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "name": {
            "description": "Filter by campaign (list) name substring (→ query[name]).",
            "type": "string"
          },
          "page": {
            "description": "1-based page number (pagination).",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "perPage": {
            "description": "Records per page (GetResponse `perPage`; default 100, max 1000).",
            "exclusiveMinimum": 0,
            "maximum": 1000,
            "type": "integer"
          },
          "sortCreatedOn": {
            "description": "Sort by created date ASC/DESC (→ sort[createdOn]).",
            "enum": [
              "ASC",
              "DESC"
            ],
            "type": "string"
          },
          "sortName": {
            "description": "Sort by campaign name ASC/DESC (→ sort[name]).",
            "enum": [
              "ASC",
              "DESC"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "getresponse_list_campaigns"
    },
    {
      "description": "List/search contacts across the account. Paginated, with optional email/name/campaign filters, sort, and a fields selector. REST: GET /contacts.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "campaignId": {
            "description": "Restrict to contacts in this campaign (list) id (→ query[campaignId]).",
            "type": "string"
          },
          "email": {
            "description": "Filter by email substring (→ query[email]).",
            "type": "string"
          },
          "fields": {
            "description": "Comma-separated list of fields to return, e.g. \"name,email\" (GetResponse `fields`).",
            "type": "string"
          },
          "name": {
            "description": "Filter by name substring (→ query[name]).",
            "type": "string"
          },
          "page": {
            "description": "1-based page number (pagination).",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "perPage": {
            "description": "Records per page (GetResponse `perPage`; default 100, max 1000).",
            "exclusiveMinimum": 0,
            "maximum": 1000,
            "type": "integer"
          },
          "sortCreatedOn": {
            "description": "Sort by created date ASC/DESC (→ sort[createdOn]).",
            "enum": [
              "ASC",
              "DESC"
            ],
            "type": "string"
          },
          "sortEmail": {
            "description": "Sort by email ASC/DESC (→ sort[email]).",
            "enum": [
              "ASC",
              "DESC"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "getresponse_list_contacts"
    },
    {
      "description": "List the account's custom field definitions (custom contact attributes) — id, name, type and values. REST: GET /custom-fields.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "page": {
            "description": "1-based page number (pagination).",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "perPage": {
            "description": "Records per page (GetResponse `perPage`; default 100, max 1000).",
            "exclusiveMinimum": 0,
            "maximum": 1000,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "getresponse_list_custom_fields"
    },
    {
      "description": "List the account's verified 'from' fields (sender name/email addresses usable when sending). REST: GET /from-fields.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "page": {
            "description": "1-based page number (pagination).",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "perPage": {
            "description": "Records per page (GetResponse `perPage`; default 100, max 1000).",
            "exclusiveMinimum": 0,
            "maximum": 1000,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "getresponse_list_from_fields"
    },
    {
      "description": "List newsletters (one-off email broadcasts). Paginated, with optional subject filter and sort. REST: GET /newsletters.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "page": {
            "description": "1-based page number (pagination).",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "perPage": {
            "description": "Records per page (GetResponse `perPage`; default 100, max 1000).",
            "exclusiveMinimum": 0,
            "maximum": 1000,
            "type": "integer"
          },
          "sortCreatedOn": {
            "description": "Sort by created date ASC/DESC (→ sort[createdOn]).",
            "enum": [
              "ASC",
              "DESC"
            ],
            "type": "string"
          },
          "subject": {
            "description": "Filter by subject substring (→ query[subject]).",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "getresponse_list_newsletters"
    },
    {
      "description": "List the account's tags (labels applied to contacts for segmentation). REST: GET /tags.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "page": {
            "description": "1-based page number (pagination).",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "perPage": {
            "description": "Records per page (GetResponse `perPage`; default 100, max 1000).",
            "exclusiveMinimum": 0,
            "maximum": 1000,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "getresponse_list_tags"
    },
    {
      "description": "Update an existing contact's mutable fields (name, tags, custom field values). Only the fields you supply are changed. REST: POST /contacts/{contactId}.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "contactId": {
            "description": "The contact id to update.",
            "type": "string"
          },
          "customFieldValues": {
            "description": "Custom field values to set (each { customFieldId, value:[...] }).",
            "items": {
              "properties": {
                "customFieldId": {
                  "description": "The custom field id.",
                  "type": "string"
                },
                "value": {
                  "description": "The value(s) for the custom field (array, even for single values).",
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                }
              },
              "required": [
                "customFieldId",
                "value"
              ],
              "type": "object"
            },
            "type": "array"
          },
          "name": {
            "description": "New contact name.",
            "type": "string"
          },
          "tags": {
            "description": "Array of tag ids to set on the contact.",
            "items": {
              "type": "string"
            },
            "type": "array"
          }
        },
        "required": [
          "contactId"
        ],
        "type": "object"
      },
      "name": "getresponse_update_contact"
    }
  ]
}

What the leaf hashes

{"body":"127a5e553e70fbbeb4c58b4d6b2fb6d2ac46da7898484a1664c9183687212030","id":300612,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793053560607077,"prev":null,"subject":"f67dc3d7-8479-4b46-998b-c1535af51089","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. 0x70494bd6fa2a272b2e5cc1520a80b09a4923c71d97c450ffb43be94d1ebcfc85
2. 0x0929bc1986451acdf5408b45b856b89629fe75c7028e4c54e088fbfeb59fc5a6
3. 0x57367a28d533686779649a44b02ab72ab6d8aab243454d0b8e646b2174c953be
4. 0x451190c137f012f1bddff519ab5267e99e640d803c8083597b72501e3c3f92f9
5. 0xf79da116a3bc5081967b1b72ce3167001d9e40b1afcaaa2ded52c357743aebe9
6. 0xf2c0960b706c83bbec26898c037daafb3ad308b28ee57f7bbf2526f96016ee18
7. 0x659fd9aacd4b1dc59dc02a0420d131bfbdd6dcd718fa1d38bbec40a6e9466f7d
8. 0x84740acdfa15c3453249997de47399df05552438779dff236ee64c2a084059ff
9. 0x6b772998359d0f60f0a087cf071ec87ae4529378e09cdd68ec0e7418c896d406
10. 0x19792535bf1364a9338820b204b05ce0f6bf3690fa1496a73e82726a450f66c4
11. 0x83da3d3b0ffc00454b09f0b6f54a0a4bb8b5fabd87854d6bb2d7abda681b5d72
12. 0x5be1d69fd9353c3a75685caffea8c98e8f079f5072011c82517cc5f365ba32f8
13. 0x14b83e3bc6587240f31cd033d09d131e0775b7b00aada9042597008a70399013
14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae