Evidence row 572168

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Get dated historical reference rates for a currency pair for a number of days, or a single date. Use for invoices, reports and reconciliation.",
      "inputSchema": {
        "properties": {
          "date": {
            "description": "Optional single date YYYY-MM-DD",
            "type": "string"
          },
          "days": {
            "description": "Number of days back (default 365)",
            "maximum": 3650,
            "minimum": 1,
            "type": "integer"
          },
          "from": {
            "description": "ISO 4217 base currency code",
            "type": "string"
          },
          "to": {
            "description": "ISO 4217 target currency code",
            "type": "string"
          }
        },
        "required": [
          "from",
          "to"
        ],
        "type": "object"
      },
      "name": "get_history"
    },
    {
      "description": "Get the latest available source-linked reference exchange rate for a currency pair (e.g. USD to CNY). Reference data, not a transaction quote.",
      "inputSchema": {
        "properties": {
          "from": {
            "description": "ISO 4217 base currency code, e.g. USD",
            "type": "string"
          },
          "to": {
            "description": "ISO 4217 target currency code, e.g. CNY",
            "type": "string"
          }
        },
        "required": [
          "from",
          "to"
        ],
        "type": "object"
      },
      "name": "get_latest_rate"
    }
  ]
}

What the leaf hashes

{"body":"c4df765ce7bb4892ac075731c103e48d199d96c2de381b910495ffafc7356265","id":572168,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793140611467274,"prev":null,"subject":"3b2e7ea9-9a06-421f-a70a-9d635ffb8a6f","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. 0x99a2b831b07e537d31c813f05c3bf1124b6881eda4987bec0ea731120623e495
2. 0x14c9066720d4bc77dc4c9004695e9f6ae3d12a48c05051ad882a866b16deb352
3. 0x2a9d4be6205e93bbc98bff65ae9adf1334e447df9e9aef58e5c55502b894dccc
4. 0x1d8db7f0c635451cabbd692526ce34cad820d7284ff41aa8dabca5de6e11f9c8
5. 0xb0e4da0002538ed05a2766f16944a06da2e4879832ab62e82695ec14b5a1fbcd
6. 0x2fc0eec799cde8fa65f4d1ae950b94c29bccf3df531f423b04929cb6706fdb94
7. 0x142567faa07034d3363f2cd1bb2a8da90ce8391c5fb0ca530be01ab7ad5594d6
8. 0xb760fa3085bc6fd2e9b316842c3e61211456d6c9f643e0f36ced53bc85b3cf58
9. 0x9cade93a7ab2831dea86ef0e9488e38c1e9ebc6a94019a7e2e4ed1342eade8b1
10. 0xfafd7acbbf81c514ccd69cca332a22472485a9a7b44a7be505ade4139587597a
11. 0xa41abe253efa912fb9578616717d0a43d778c1509c3109fa4cfcc00433d8500d
12. 0xff66a3c0db6d61623a5ee399a8625355b32e95a4eb77e6d9f9ca4ae4dcbc5937
13. 0xfe6d2e9a468b7e99de9162a2ef30ac0b0e3b318387b4356bf524493aa67b295b
14. 0xa3c9c760ee424c178bab782711c2b9d3e15a80a6fde99165972cb75b306bb8b4
15. 0xb4f7223140c8a36cb87a63d77cf617086d9968dc4658f03e102571ebe06e9ed6
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4