Evidence row 555278

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/forex/rate/eur/usd/eur-usd"
    ]
  ],
  "name": "api.x402node.dev/forex/rate/eur/usd/eur-usd",
  "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 EUR to USD exchange rate (Euro / US Dollar). Zero-param: GET returns current rate. 欧元兑美元实时汇率。ユーロ/米ドル 為替レート。Tipo de cambio euro-dólar. 유로 달러 환율. eur usd, eur-usd, EUR/USD 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": "2026-10-27T09:56:24.157Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-27T09:56:23.953Z"
    },
    "resource": "https://api.x402node.dev/forex/rate/eur/usd/eur-usd",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live EUR to USD exchange rate (Euro / US Dollar). Zero-param: GET returns current rate. 欧元兑美元实时汇率。ユーロ/米ドル 為替レート。Tipo de cambio euro-dólar. 유로 달러 환율. eur usd, eur-usd, EUR/USD forex quote. Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"308aa8fa5ca25c1993e3ea1a03aa2adeb3eafa1aa4d15309b488e1ac492fd744","id":555278,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133785742479,"prev":456353,"subject":"x402_bazaar:https://api.x402node.dev/forex/rate/eur/usd/eur-usd","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. 0x180e65753c8665dd70dd4056bbb47e2fcb90ca80b63bb3b2072f8c560a734f94
2. 0x2ee0fa35987fa9a406b3a1322fad6ed53107d931eca201eca7d6e38cad48a183
3. 0xe5c128770418bf38970b71a6d420f2d3cdbb43e1d428ad660579a0295b7226c8
4. 0xc01cae67fc7f8b52799f65c2d31c09b94229da7735a68bfa0552c055f8f54aff
5. 0x4f256a840d8b5885c0c66c5ece78c2b58ba87571ba47ab1ed4f0f141e8b693ee
6. 0x144d169915b1be32e58c01c0974151dacef383748b5141f02b19baa1fa9c227d
7. 0x5b70d26edf3255328b9ed5f8c69490a5f9d136a73b14011cb8e4d1bfe248dc96
8. 0xd21672e9a9b8e5583811a42b6b66c4700d8c3eb9ad2fc8cd98a76f58705e0ef0
9. 0xc08f8c0e5f2c97b04fc5dec0440213ed03e364d5c461d5f6f2d2682e46d27652
10. 0xcc4a5e968f8104975c0d4e73f435fe9abd4c13bd43300bcd5458a7c5e6bb099a
11. 0xf79d4220a9fc71105fb136100defea9d0ad81dbe57947e6220e673f633a3e805
12. 0x7afa806e5533c63e57a18fda23b38702b370e8b298a35edc0c1de641c8ffcaec
13. 0xca0b37bb3b043ccf0f24c50fccd9c2f22b7e5290df49886008fc2ff55380fdd1
14. 0x2064e3a2b01d0d12d5079bf720a0d0125e9703c55e92de54ad40c302469ec047
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4