Evidence row 308551

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Retrieve one record in full, including every revision observed since it was first seen. Use this to answer whether a document was amended after publication and what moved. The id comes from a search or recent result.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "Record id from a search or recent result.",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_regulatory_change"
    },
    {
      "description": "List every regulator and feed being monitored, with when each was last collected successfully and how fresh the data is. Use to answer what this connector covers, or to check whether a jurisdiction is being watched before relying on an absence of results.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_coverage"
    },
    {
      "description": "List the most recent regulatory publications across all covered regulators, newest first. Use when asked what is new, what happened this week, or for a general catch up rather than a specific topic.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "days": {
            "default": 14,
            "description": "Look back this many days.",
            "maximum": 365,
            "minimum": 1,
            "type": "integer"
          },
          "jurisdiction": {
            "description": "Restrict to one jurisdiction.",
            "enum": [
              "CA",
              "US",
              "UK",
              "EU"
            ],
            "type": "string"
          },
          "limit": {
            "default": 25,
            "description": "Maximum records to return.",
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "recent_regulatory_changes"
    },
    {
      "description": "Search regulatory publications collected from financial regulators in Canada, the United States, the United Kingdom and the European Union. Use for questions about what a regulator has published on a topic, or what has changed in a date range. Returns the most recent matches first.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "Restrict to a publication type.",
            "enum": [
              "rules",
              "enforcement",
              "guidance",
              "news"
            ],
            "type": "string"
          },
          "jurisdiction": {
            "description": "Restrict to one jurisdiction.",
            "enum": [
              "CA",
              "US",
              "UK",
              "EU"
            ],
            "type": "string"
          },
          "limit": {
            "default": 20,
            "description": "Maximum records to return.",
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Keywords matched against title and summary, for example \"liquidity\" or \"crypto-asset\".",
            "type": "string"
          },
          "regulator": {
            "description": "Restrict to one regulator by short name, for example OSFI, SEC, FCA, ESMA.",
            "type": "string"
          },
          "since": {
            "description": "ISO 8601 date or timestamp. Only items published on or after this.",
            "type": "string"
          },
          "until": {
            "description": "ISO 8601 date or timestamp. Only items published on or before this.",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_regulatory_changes"
    }
  ]
}

What the leaf hashes

{"body":"95479da3071e0fdd527b8ab4390ece42f0337effc3de1368684318f68418ac0d","id":308551,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793058339906829,"prev":null,"subject":"2fafc4a7-a19b-4ee2-ad4c-7b6e3369e002","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. 0x669c5e6d3a6f5a99a8234d67ccfe70736d31f1e34939fd288ec3f32820de7bd7
2. 0x5cf7ae9fc9f467586f220ee5e711273b1461ebd345a27f4c74a4c6330e0da284
3. 0x5f195eaf275d7487d85b35bcbf5d7912d5d45fa4883731506053eab3459d0420
4. 0x2909190ac405f2ec1798ab7ec9f25a46763dcf4da34191f5893a726f46afd1cf
5. 0x478f5b78a9b140e85c8f2e750b79708418d4dd3070d22329708498470f36e866
6. 0x693db91ec2a1b0602dd23fcf5e2d1b9344ff116cab75b2c272d348a76b774848
7. 0x7e365d0f0a8ffffac4c4df71d22d0ce470c7ce6c16c3db55426cfeba098bdd46
8. 0xdbce9e24e9b91cc426ba0281bda1a68611ceb2c25f716a429868420bb704f93d
9. 0xa7be717ed96c035130dde8d1b878492cb1e4ceb10906e8e07c1e477977f43f43
10. 0x58c0a36fd4c0b127730a3ff2bd4a0e6279da1a965147e7629a7fd4098c5fed18
11. 0x97befbe0402dae50d99027054f0d354513b22fda782f887ba0d9fae94219c296
12. 0x611b1c1b68d04a71934006e383071a8f3836400d60beb86d81dd038bc102029f
13. 0x13f4b94ecf613d585c952b5363dad2b247a55371eb8e358bb89dc033e83128b1
14. 0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae