Evidence row 555339

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": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-27T10:00:37.451Z"
    },
    "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":"4907f82ad1a3f190427f101c8cd4d3bcb3ed1f33a64d9613d4f05e0960d5df7b","id":555339,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133788182795,"prev":456436,"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. 0xcc05ea471c80e9ddc3029208e00907b0514b3d16570ec8d8328968ecb1c2d958
2. 0x4b9da5b9e8cfa02deedb9e6eb2fd1d76f0f4280a69a3783afb597770c8984479
3. 0xc1385fede9e5a1222a9f9421acc7b9c421f8e99fceed2e5b85e693ff4b831ade
4. 0x207407202b0816dcc5240903929c70b23632e3124052662c293d696fa1026f9a
5. 0x8a8cc43ca627b5f09fb67563778ef643960d5e44b69374ba6e00110610aa727d
6. 0x765e53275820d656a6f1f4770296e1b34ab21c015289d2a74d8f5f450cd10767
7. 0xcb9f4811bc73ad9a9b1ab10ee4dcf9c8ee900fc30a123dbd5137228400af705e
8. 0xc2cf8f51d9a929f73e68ee342b861276d50618798c78971599cbe8be73ba7ab7
9. 0x83ab520748763f39e28c91ef45483515fbdafc673c7cdeb76d1345655773d9cd
10. 0x0d926d1c48e003bf05f0563bb42cb1cc8796341ca771c4e25ce7c9a6f07bcb6d
11. 0x4eb72d2edb3b063d190586d64965ee7a33e28b4ffbc292fb4be0995ba6f8daa5
12. 0x6c0803f2d7123e0bcd2a148e9fde0f429f31dc964ced287e760ee656fcd9912f
13. 0xeb77e9d1884bf470f4a13a5869956a83ac37957112a29ccb9e63ddf7791b5a0b
14. 0xcc49fd573532e5a29f5be4033f62a2eff71456c020bd2258312b98e95cfe301e
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4