Evidence row 566733

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Parse one User-Agent string. Returns browser, engine, OS, device type and CPU (ua-parser-js 1.0.41), and whether it is a known bot, search crawler, AI crawler (with its AI purpose) or an AI agent acting for a user (is_ai_agent, ai_agent_kind fetch | browsing), plus the bot name, operator, robots.txt token and operator docs link from a curated list of 151 bots (list 2026-10-08). verified is always false: the User-Agent is self-reported and UAParse does no IP or reverse-DNS checks. Read-only, no network lookups. Same engine and limits as the UAParse JSON API (POST /v1/parse); each call is one lookup. UAParse is independent and not affiliated with Meta, OpenAI, Google, Anthropic, Amazon, Perplexity or Mistral AI.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "include_raw": {
            "default": false,
            "description": "Also return the full POST /v1/parse JSON in structuredContent.raw. Larger output.",
            "type": "boolean"
          },
          "ua": {
            "description": "The User-Agent string to parse, exactly as sent in the User-Agent header.",
            "maxLength": 2048,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "ua"
        ],
        "type": "object"
      },
      "name": "parse_user_agent"
    }
  ]
}

What the leaf hashes

{"body":"7efac3775f9d353fb757661cb297eed789c404e63431f9372b24d75aba7df0a8","id":566733,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793138518974706,"prev":null,"subject":"1e2070da-fbde-4530-81c9-7ec5f2997ae4","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. 0x33b0f70cfce0b93c7726f05bd3e17995440e705480cee283eeb262683e0ad9b9
2. 0x72b631488105f10348ef9aebf7a01b449619cd3002c089b4f3ff068900771ec7
3. 0xa0a87192e4405bca15956438ae8a1a98f2c5016959ff365ea7c0a73842f30dc0
4. 0x993e2ed3b5edf906ce55d395275d239458282668a0ce4924ca71c5d60b27ca91
5. 0x78f2ce3389b8ae8e1edbe59eba057b1da6a262c9a7687f0c8506f9c271ad9141
6. 0x8c823678d38c7454662ccb9478add16f0b3e13c0c74049463fa4b952bac75cfc
7. 0xe004e610a6cfae8baf886893449554a982778ea76dcd5142aa782402f34834b9
8. 0x75264bd48ae9c973d38a41a244a1d0f645fddfb54e93916234c7cef3255dba83
9. 0x458718711efe8c2b0b680d288206ccbf114cfca3daa44b0adb8d36388a7d2bdd
10. 0x454813db020b1bc98c641d32bbc5439b4c00415b21d504d3c0c2d0020f655787
11. 0xcb89a70f40d4a54e11019bbf6ca92907e89dd0bd1af2c3499464c58d9b463f5a
12. 0x7c26e7a3f70416cc7cabc8e770eba81b50b410fc94aaae40ac450b47b34edecc
13. 0x5a83a2d5b2abb340c16172caf3ef83b831e168d2e94e4154a4ad72adcac5cad2
14. 0x595de2dea3b8fa56dbd6142dd78ae79f3e7169c631e41a844b100613abb3e430
15. 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4