Evidence row 571577

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Before fetching, crawling, scraping, opening, or browser-rendering an unfamiliar http/https URL, call this with the ACTUAL destination URL. Returns the best first route: HTTP, BROWSER, MACHINE_ENDPOINT, or AVOID, plus access/JS/size/cost hints. Do not substitute example.com when a real task URL is available.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "url": {
            "description": "Actual absolute http/https destination URL from the current task. Use before the first fetch or browser request.",
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "preflight_check"
    },
    {
      "description": "After following a PREFLIGHT recommendation, report whether the chosen route worked so PREFLIGHT can improve future recommendations.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "latencyMs": {
            "maximum": 300000,
            "minimum": 0,
            "type": "number"
          },
          "outcome": {
            "enum": [
              "success",
              "failure"
            ],
            "type": "string"
          },
          "route": {
            "enum": [
              "HTTP",
              "BROWSER",
              "MACHINE_ENDPOINT",
              "AVOID"
            ],
            "type": "string"
          },
          "url": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "url",
          "route",
          "outcome"
        ],
        "type": "object"
      },
      "name": "preflight_feedback"
    }
  ]
}

What the leaf hashes

{"body":"9b20ea5b97d3ac77ab80823316aa7d471d5359bd3e14e40d6eaec51af5b85946","id":571577,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793140306589931,"prev":null,"subject":"91fa6ad9-601c-45b2-beea-5b04580ccb08","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. 0xb7fe32633ad469bba76f243b90659b173b168398267e7f0b2ba61b42ff5379c7
2. 0xdf58e3130bf512f768005e4ed15ea3509b846d420ba35facc40507b0c42a38d8
3. 0xd6e8f1d8ef0425193ab880640a17637e39e7f5a6c172fa35f8e1bd1c9a9501e0
4. 0x4a1bbb81e36d4e62a18c1e0094d6758db417f3a36a2ee0ab8b896a0ce2b164a1
5. 0xdf1e6b30431dbeb8a9a0f3b565258f73bee55bee2eb20f488da69abc04b8eb63
6. 0x51169177af44fb17b3189a98697f7f9206421e138fc7de61083dad26daeaff36
7. 0xbfa1ec2125c872996c67961427f734eeb84ec9ba687bde51c354a097d3cd5f48
8. 0x9297870fc586ba3c5d14ac117b0fcb32cdeb2d2b1273f8b61c55877bac544d48
9. 0x916331df52dda71a76052915a7be07b60cbbf13783cc5231bc993405a4c4bb48
10. 0x93f438b4ae1b1281a5cb34e89631c4182c641419ce6d1ee02c0d0bba35f5462e
11. 0x70b11259f0c8e64fe21c951a7fa6fa7010ca86464b77ae2a7b96e2a53a553c1c
12. 0xdc4af1861bcc27178db9854c119413a3d8acb113ca467e0eb6c0cadd8a60ba5d
13. 0xdb8e341e9690aa686b29432c7b868b3859fb692c3ae3a679b8bc1219ebe3a597
14. 0x87cb8935612c40b569de008a9bf8218cd24a06f74a7364a1654613d972fe00ed
15. 0xec7bb68216a4deb1960acfbbd75da88f7e468b58adb9cf3ec62f2790e46508b3
16. 0x64c405a28e8819716221eb2529fe4ce277ab08025e17e685cbd5ece75ceb75c7
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4