Evidence row 570341

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Subscribe an HTTPS endpoint to new registry changes. Save the returned secret; it is shown once.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "entity_ids": {
            "items": {
              "pattern": "^[A-Z]{2}-[A-Z]{2}:",
              "type": "string"
            },
            "maxItems": 10000,
            "type": "array"
          },
          "event_types": {
            "items": {
              "enum": [
                "business.created",
                "business.name_changed",
                "business.status_changed",
                "business.address_changed",
                "business.agent_changed",
                "business.officers_changed"
              ],
              "type": "string"
            },
            "type": "array"
          },
          "jurisdictions": {
            "items": {
              "pattern": "^[A-Z]{2}-[A-Z]{2}$",
              "type": "string"
            },
            "type": "array"
          },
          "name": {
            "minLength": 1,
            "type": "string"
          },
          "url": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "name",
          "url"
        ],
        "type": "object"
      },
      "name": "create_subscription"
    },
    {
      "description": "Revoke your subscription.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "id": {
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "delete_subscription"
    },
    {
      "description": "Returns one business by an ID like US-VA:11406679, with dates in YYYY-MM-DD format.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "id": {
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_business"
    },
    {
      "description": "Returns events for a business ID like US-VA:11406679; dates use YYYY-MM-DD and next_cursor pages through more results.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "cursor": {
            "type": "string"
          },
          "id": {
            "type": "string"
          },
          "limit": {
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_business_events"
    },
    {
      "description": "Returns available registry sources and their latest verified YYYY-MM-DD dates.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "list_sources"
    },
    {
      "description": "List your subscriptions without signing secrets.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "list_subscriptions"
    },
    {
      "description": "Returns matching businesses; IDs look like US-VA:11406679, dates use YYYY-MM-DD, and next_cursor pages through more results.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "cursor": {
            "type": "string"
          },
          "entity_type": {
            "type": "string"
          },
          "formed_after": {
            "type": "string"
          },
          "formed_before": {
            "type": "string"
          },
          "jurisdiction": {
            "type": "string"
          },
          "limit": {
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "q": {
            "type": "string"
          },
          "status": {
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_businesses"
    },
    {
      "description": "Returns business.created, business.name_changed, business.status_changed, business.address_changed, business.agent_changed, or business.officers_changed events; dates use YYYY-MM-DD, business IDs look like US-VA:11406679, and next_cursor pages through more results.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "cursor": {
            "type": "string"
          },
          "jurisdiction": {
            "type": "string"
          },
          "limit": {
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "observed_since": {
            "type": "string"
          },
          "since": {
            "type": "string"
          },
          "type": {
            "type": "string"
          },
          "until": {
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_events"
    }
  ]
}

What the leaf hashes

{"body":"de9672c30b1a732324223dba9476930f6966913cdf42dd2d90aecb53c5e191ea","id":570341,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793139713356463,"prev":null,"subject":"5498d6bc-0426-4bb4-ba6f-ca37e6f10d3e","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xac137cdeb958065b2a9a939d3be14bd47cd76a892b2e793d2704f9a2611447c1
2. 0x1130648fc91b7738412f793a6e17dabdd2d8ea08d247081dc24e0f99afb22360
3. 0xe9e6e2b76029a02bf1abb086796ade86adc29c7206a2cfa4e05af673e8b67e6e
4. 0x557006844110fec1b71cc7c70ca7355b465d48dd333e4a24517c5b542805a8ca
5. 0x5875a1e6deda8b4720055c890da1f91109b303ca323d038c73520371726c2ee6
6. 0x68197e46dbae6e15daea423187eec39bc8065836bf5fc30f01127d26eca3577c
7. 0x6186f465a5ab7a9bc8b2177a1878b7b42ac83a99b5fac0158738c21c462b04fa
8. 0x7db7e2720b71e41a17b4a3e4df153eaad1007bb032c699e780ec5f519d926ac2
9. 0xcd3e8783629af833df419c19bc08ce859962a61422717cd48f8f1cfa226f3eca
10. 0xb99ed8d48f75c12e3311a95cda7ae609a7787fc0cff00f4e1f2669254f022ce5
11. 0x59cb41ec7d9ac9c74e0f576f6d9ea1041f1f440ad9c2ec9f6107b51d598a3ef5
12. 0xe58ece954b3b0e80c16db5967815baeb4102983fd3dbc48dbb6146da839f558b
13. 0x5e700087f2a5e8fb7372f2c2db037d66942006d666bb45dd92f745011295fa7b
14. 0x98c6ed3e7b5bb7f1757a8660af410226a11dd563bf83010040c2ce059ab45e54
15. 0xec7bb68216a4deb1960acfbbd75da88f7e468b58adb9cf3ec62f2790e46508b3
16. 0x64c405a28e8819716221eb2529fe4ce277ab08025e17e685cbd5ece75ceb75c7
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4