Evidence row 555341

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/forex/rate/krw/usd/krw-usd"
    ]
  ],
  "name": "api.x402node.dev/forex/rate/krw/usd/krw-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 KRW to USD exchange rate (Korean Won / US Dollar). Zero-param: GET returns current rate. 韩元兑美元实时汇率。ウォン/米ドル 為替レート。Tipo de cambio won-dólar. 원 달러 환율. krw usd, krw-usd, KRW/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": "2026-10-27T09:59:32.016Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-27T09:59:31.866Z"
    },
    "resource": "https://api.x402node.dev/forex/rate/krw/usd/krw-usd",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live KRW to USD exchange rate (Korean Won / US Dollar). Zero-param: GET returns current rate. 韩元兑美元实时汇率。ウォン/米ドル 為替レート。Tipo de cambio won-dólar. 원 달러 환율. krw usd, krw-usd, KRW/USD forex quote. Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"25affa82128e783f64442bd7ed47f18b8f04202cc32718a1c5206f824f7c8df6","id":555341,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133788188284,"prev":456438,"subject":"x402_bazaar:https://api.x402node.dev/forex/rate/krw/usd/krw-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. 0xf656981ba17fe2af89e6ba8e12a9cabd4b699e657249f6ca4f8e8b55c662dc83
2. 0x3ceedaca4c43ffcfb3c264141b9bc165df7d128cb496e95d0e5b5299b2bd01f3
3. 0xac18089dfe2f5e2a7bf48b9cd18f13e8a38b649a73123cc20e8f165e0e805a48
4. 0x17738cfae145711f28942e28b5e918a153a1bf510918d52c74272a831fadf374
5. 0x09c568af345296166fd705554e01b49306b67c688114ecd16571718a90d7b335
6. 0x01e800b4c5f22eae5b179689c411554ddedafb84c30f25fb4447d4637ae1aa5a
7. 0xa9f00cc7e0442c3b861d5d2807f70f561679afb106f2b7c798d664230a6e8b9b
8. 0x32dd6cb017136970b61cc3dc03341317a8ace1e0ea28ec425cfe6412a4c252f2
9. 0x37ed8dd367ba1ace5b302e8c713b0329b852c2ff9f287e4ab3f6f356124a1539
10. 0x72d53d93848dbfd8969a07c68ec747867769f915e6f73581344dff49a36a239a
11. 0xb3ff7369d12615d3036b48b1396a793b1d0d84a56c22090d510b0219bcb8a827
12. 0xb841380b5d51818d39ebd0d89624396bb243f73c55b9f61e4f4bcddf15ebdec2
13. 0x2cba9be288dab78cb9c5f54fa13242712b2493da9f833a7c3cdd92cde60662b0
14. 0x94d3785ce9330e4580bccada5459380aa2aac76a0bf11354d1353b375afc17d2
15. 0xb5b652bba4a5afca56c21031d89b1c06361563aaf54ccc8541c296ceeb2b66fa

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4