Evidence row 1477707

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "MCP Canary plans, monthly prices (in cents), and limits, plus the free trial. The trial needs no payment and starts on the first monitor write.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "get_pricing"
    },
    {
      "description": "Connects to a remote MCP endpoint (Streamable HTTP, then legacy SSE), lists its tools, and classifies each tool's side effects from its MCP hints. Never calls a tool on the target. agent_readiness lists what is wrong with the tool definitions and protocol compliance of the target, each with a fix, and a grade A-F. A target problem is status=failed with a stable failure code (e.g. TARGET_UNAVAILABLE, TARGET_AUTH_FAILED, MCP_PROTOCOL_ERROR). Private and loopback addresses are rejected.",
      "inputSchema": {
        "properties": {
          "headers": {
            "additionalProperties": {
              "type": [
                "string",
                "null"
              ]
            },
            "default": null,
            "description": "Optional HTTP headers for the target, e.g. Authorization. Sent to the target only, never stored.",
            "type": [
              "object",
              "null"
            ]
          },
          "url": {
            "description": "Absolute http or https URL of the MCP endpoint, e.g. https://mcp.deepwiki.com/mcp",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "inspect_endpoint"
    }
  ]
}

What the leaf hashes

{"body":"e2eafae6f9ddbd4f91d706a4a043f9a9a1270cfe445f3b30d371865f196af63f","id":1477707,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793424708798782,"prev":534418,"subject":"9c4188d1-96b6-44bb-a88a-c17989a217de","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x8f6f8f8e34c35261272f2720fdcbfbe510b7b070340d75c2e0a16715b169d3bb
2. 0xdd332bafc06e781797c8a756c70fc9167b7b9df3699bd2f94ffc4e0d15e780f5
3. 0x311e9a3a50255c09ee76d78a0028bcb3b6a49c857d154ce9666790e68f724278
4. 0xda1da151e2e8b00b34dedaa87c81c8c3e05cedf8bac004667c76d47e946e033c
5. 0x3fbe3ba5d2ac194865ac4a26c3e335b50693fb0a262d9fcd0fb40fc5e24e49ab
6. 0x5c52b584ed08b51860c57f4312c283b5a8c755d45f97cc3477d0ca58d79d1a6e
7. 0xfee69b86b26cad0ca7ea5ab69026f69469314696fe186c170b4fbab19830ef1d
8. 0xc3c3fd74ea9207410171888d3a625e8a0b5535538466d4864dd7b6b477e29e4d
9. 0xede39f570f8af99a08f3aa624f1aa1276322eabf0776b6b66839737fd4c2caf9
10. 0xfcc291438de127e190c8cc4049117c58913e3275e4444421559f1afb6bfe7cd1
11. 0x075add8126fd6e0508b34f1e1c691248252d4f1c816155f4680428b7b31e9bd8
12. 0xb35427049c0ec0bf3388909156a8b2405fc397caca5c71b5d546f289490e602e
13. 0x473240d96a907ad7172b60dd64bc6ec1ec3c974fbda5be4acc25be00ea94115f
14. 0x53cec9a253425d115917fd16acdf0d80665ab0944593859ce1e8b491b9693e2f
15. 0x91bc1c2b25f148b9b56bf377304983d0f2e68d0d8c3f65c9aaa8adb083331d11
16. 0x8605635b6c6bd33c6547585212170cc076018c2dd5f81f35a5ac4ade689fbb12
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0