Evidence row 572682

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Get mcpvot.xyz server health, available x402 services, and MCP endpoint info. FREE endpoint (no payment required).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "get_ecosystem_status"
    },
    {
      "description": "Full iRacing race results including finish order (P1, P2, P3), laps completed, incidents, iRating changes, and weather/track info. Takes a subsession_id (from search_hosted_races). Requires active iRacing subscription. Costs $0.02 USDC per call.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "subsession_id": {
            "description": "iRacing subsession ID (from search_hosted_races)",
            "exclusiveMinimum": 0,
            "type": "integer"
          }
        },
        "required": [
          "subsession_id"
        ],
        "type": "object"
      },
      "name": "get_race_results"
    },
    {
      "description": "Look up an iRacing driver profile by customer ID — iRating, license class, safety rating, career stats (starts, wins, top5s, avg finish, avg incidents). Requires active iRacing subscription. Costs $0.01 USDC per call.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "cust_id": {
            "description": "iRacing customer ID (numeric)",
            "exclusiveMinimum": 0,
            "type": "integer"
          }
        },
        "required": [
          "cust_id"
        ],
        "type": "object"
      },
      "name": "lookup_driver"
    },
    {
      "description": "Search iRacing hosted race results by date range, driver, or session name. Returns list of races with subsession IDs, track info, winner, driver count. Use subsession_id with get_race_results for full results. Requires active iRacing subscription. Costs $0.02 USDC per call.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "cust_id": {
            "description": "Filter by driver customer ID",
            "exclusiveMinimum": 0,
            "type": "integer"
          },
          "session_name": {
            "description": "Filter by session name (partial match)",
            "maxLength": 100,
            "type": "string"
          },
          "start_range_begin": {
            "description": "Start of date range (YYYY-MM-DD, default: 7 days ago)",
            "type": "string"
          },
          "start_range_end": {
            "description": "End of date range (YYYY-MM-DD, default: today)",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_hosted_races"
    },
    {
      "description": "Search the web via SerpAPI (Google search). Returns organic results with rankings. Costs $0.01 USDC per call. Requires SERPAPI_KEY env var configured on backend.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "limit": {
            "description": "Max results (default 10, max 20)",
            "maximum": 20,
            "minimum": 1,
            "type": "integer"
          },
          "q": {
            "description": "Search query",
            "maxLength": 500,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "q"
        ],
        "type": "object"
      },
      "name": "search_web"
    }
  ]
}

What the leaf hashes

{"body":"983098e2b3c78a277ae10b66d69e8cf4cb16ba74958cb325af54afb80712b220","id":572682,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793140826922706,"prev":null,"subject":"b599f2cf-b589-47eb-ac58-cd9b0d7aa818","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. 0xc7f394ea20b032e6e82a8af4e2f78d008aabf7a0103b05afe9a17e6252bcc21a
2. 0x5f6491e56c6f17b7d61d08b83e919f7f325887fafc6fa26437717bbe667d189d
3. 0xb333316b19580a59d1d0cfd4d88281cfebd53af482f246fe135460614e545bc2
4. 0x1f29df1769535d7826cbf97718c7b76f7d0ca9537da680f2ed1c57be8b4f73dc
5. 0xa12c5ffb655d0a177c2e38d4e4b6161a314c4844cff03b7c9c0f9179bfbdcf78
6. 0x90d80fde1a9ca9de55a208bd4605bdafff9eb1a7b8f10b7097d246b065702e4e
7. 0x6649fedbfa6e403ebbf7f317c0580cc0f8ec067bc9bff8014ab1a589d5754a6f
8. 0x49073d08885645f2db167ccec53fff73251a350fa37aa6efc89a1785ad49c721
9. 0x96c2813c0bb05121a48893c5490df5ea970cbfc6338d60fc9bda5b40a5afafe8
10. 0xb8f01eb93444211a737298820ced6cc9a9706725c4d26306e6eb90a516410d19
11. 0x2e6671416897991c56f68114e0090d4a5077431f4a8f11cc1941baa393e53442
12. 0x579274645af30f881c6ffa5eae0da4929a7645c54a24d58a51e98be31e70dd57
13. 0x72d49c3472216d5e76117068ea9a2a5f617bdb2ffda241f677ce8098a0219dfc
14. 0x077edf0f29e2a3aa19c876439830696b88f0236fd0b2a3c43c76f38cdd29bb2b
15. 0x73341bb09dd901ca47f26173883431496e3d98d6b0fb5b89f36218126d46c5d4
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4