Evidence row 409166

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/finance/central-rates"
    ]
  ],
  "name": "api.x402node.dev/finance/central-rates",
  "owner_address": "0x4466d4a84b7c49a6a094ec6eef4a0712d6dd125e",
  "raw": {
    "accepts": [
      {
        "amount": "12000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
        "scheme": "exact"
      },
      {
        "amount": "12000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
        "scheme": "exact"
      }
    ],
    "description": "全球央行政策利率：38国央行当前政策利率（美联储/欧央行/日央行/英央行/PBoC等），来自BIS官方数据，归一化JSON。含利率值/生效日/来源央行。可按国家筛选。Global central bank policy rates from BIS official data — Fed/ECB/BoJ/BoE/PBoC and 33 more, normalized. For FX carry trades, macro analysis, rate differential signals. Accepts payment on Base or Solana — either network works.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "country": "string",
              "detail": "string"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "country": {
                      "description": "可选，2字母地区码筛选（如 us/cn/jp/gb/xm；不传返回全部38国）",
                      "type": "string"
                    },
                    "detail": {
                      "description": "可选，full 时附带利率定义说明（compilation）",
                      "type": "string"
                    }
                  },
                  "required": [
                    "country",
                    "detail"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T05:23:31.564Z",
    "quality": {
      "l30DaysTotalCalls": 114,
      "l30DaysUniquePayers": 19,
      "lastCalledAt": "2026-10-26T07:35:02.88Z"
    },
    "resource": "https://api.x402node.dev/finance/central-rates",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "全球央行政策利率：38国央行当前政策利率（美联储/欧央行/日央行/英央行/PBoC等），来自BIS官方数据，归一化JSON。含利率值/生效日/来源央行。可按国家筛选。Global central bank policy rates from BIS official data — Fed/ECB/BoJ/BoE/PBoC and 33 more, normalized. For FX carry trades, macro analysis, rate differential signals. Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"b4ad6cda3888bd32854451ab141366033201a8707acab247b807ca5b0b8846ac","id":409166,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080351950909,"prev":70264,"subject":"x402_bazaar:https://api.x402node.dev/finance/central-rates","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. 0xfcf4168ff90c52998c199613e66d418ec9ca61f35dbf9e9ec20f057796ed94ed
2. 0x6cfc51ecda97e3bcdb9d0c4812c948d85b0c799ff513f69e7b56d72459cf51be
3. 0x1dafc53fa362db23b9a83d4b142ce14ede582ffc4a54b8f0a522e27ff75bc442
4. 0x4e2e83fcfd4815776d7c55ce8b61feb5752b1be76cc32c86756ae072305c7e20
5. 0x9a71f00aaeee69792895420d75fb759b518c2d056093c979003d5f3b45c54114
6. 0x87eb5c0531a998689f2201b9355e70d2bce11f87b358040ea46b1124a0225f17
7. 0x675ac8e32ce9b3fd03fbf4fb4056ab0d06e8c4069bbe910c84777f63601b8a50
8. 0x7d1868d16e641da1b5d7923b6bac16abe04864f398e74b9a9c3757688d5e0e15
9. 0xfff9b51c13443a11dae084cd23a84bb128324aa04458e9573590a11d89a33775
10. 0x6028aad3435e0b6caf5817c1026f7afd3a8f3b8246fbecf2187987f14568ca6f
11. 0x479c88a152ed598e589c121df2956daa75b8b8dbec53f73497cacb70cc838259
12. 0xf4dd076e6efbd5ea0ecb7bbba37a353ed1d340e9d41fd6bbc5f05edbb05ca1cf
13. 0xf24b37f8ac293f5328e3e6b28cf868989fe99debf025c153c0d9a1698e846e25
14. 0x94d3785ce9330e4580bccada5459380aa2aac76a0bf11354d1353b375afc17d2
15. 0xb5b652bba4a5afca56c21031d89b1c06361563aaf54ccc8541c296ceeb2b66fa

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4