Evidence row 456436

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/forex/rate/usd/cad/usd-cad"
    ]
  ],
  "name": "api.x402node.dev/forex/rate/usd/cad/usd-cad",
  "owner_address": "0x4466d4a84b7c49a6a094ec6eef4a0712d6dd125e",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
        "scheme": "exact"
      },
      {
        "amount": "4000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
        "scheme": "exact"
      }
    ],
    "description": "Live USD to CAD exchange rate (US Dollar / Canadian Dollar). Zero-param: GET returns current rate. 美元兑加元实时汇率。米ドル/カナダドル 為替レート。Tipo de cambio dólar-dólar canadiense. 달러 캐나다 달러 환율. usd cad, usd-cad, USD/CAD forex quote. Accepts payment on Base or Solana — either network works.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:00:37.597Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-18T19:29:31.809Z"
    },
    "resource": "https://api.x402node.dev/forex/rate/usd/cad/usd-cad",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live USD to CAD exchange rate (US Dollar / Canadian Dollar). Zero-param: GET returns current rate. 美元兑加元实时汇率。米ドル/カナダドル 為替レート。Tipo de cambio dólar-dólar canadiense. 달러 캐나다 달러 환율. usd cad, usd-cad, USD/CAD forex quote. Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"8a2963f0d59956a078d72e329f205ba7c3aae83268453e56307e1a23a95e950b","id":456436,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100957483585,"prev":70479,"subject":"x402_bazaar:https://api.x402node.dev/forex/rate/usd/cad/usd-cad","subject_kind":"source_record"}

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. 0x7b99fda1e944ca9b028353c19d05e0fd151054298881ff8fe6a9b8f9854bbc9b
2. 0xe74dfea2322d8197cf3be27a7d59beab46f59a940dca645c7912e8c0174dd9c0
3. 0x897ea68593719eb3e91f226583838f7042b0af36aa81740bc5a47c92dd29b0fd
4. 0x351056a0b6f99036505b0e5729dd2cd7438253822cffb62ea3cab8939bfa0462
5. 0x0eb8b142887284d7b3974ba6624116d596abebeab2535648e2da76b320dfa546
6. 0x59e2e9d4f8b0c9b8d488191cfe619dc0f79d79f17b9cd5ce718d320cd92e25c9
7. 0x5511ddeb20cf0c880c1272138ff0e1d9abafe3832194d8c4bfc69d7f59567a1c
8. 0xb913d1ea3b364c746edfabccc0fa45246343a0c9e3a5a74aa402ee67cd312610
9. 0xd5ec4d3a50aaaa867261ff7b431a74d7c3d292e405260f1ed18318c09e1e32c2
10. 0x7dd3f687b0ad4363a3dbdbd52e7f46ad9d425ee75eb439e90516eb43f30d8ce9
11. 0x5fc4b0a456927c5c4428f8a799b89307f1fd731fdb306738036ae0bbf1f21fd8
12. 0x98815e62072eb9319b52d9744169ae17850c056887ffbb325e7f2f9ed317a6a0
13. 0xbc7cf10ae301dcdbc5db5be8c29e1b3618ffaf1c196a74cb6a9e6c4fae0bbeed
14. 0xfa0c8e8f1a1710ff197533b0a28208f2e168afe71abb7bb3416e09d1ac371d60
15. 0x3c500ec3d3edf0c74b87a6ca8fcd77656bfbe03db3d478bd0c184d0c88839c6b
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4