Evidence row 75275

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://finance-api.kdlcfa.workers.dev/forex-snapshot"
    ]
  ],
  "name": "finance-api.kdlcfa.workers.dev/forex-snapshot",
  "owner_address": "0xe3738580ede5384bb8b8d1c8786b391c59d2668d",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xe3738580eDe5384Bb8b8d1c8786b391C59D2668D",
        "scheme": "exact"
      }
    ],
    "description": "Multi-pair forex snapshot (EURUSD, GBPUSD, USDJPY, USDCNY, AUDUSD, USDCAD, USDCHF, USDVND) in a single call, delayed, via Yahoo Finance",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "data_source": "Yahoo Finance (delayed)",
              "date": "2026-08-03",
              "pairs": {
                "EURUSD": {
                  "change": 0.0032,
                  "change_percent": 0.3,
                  "previous_close": 1.081,
                  "value": 1.0842
                },
                "GBPUSD": {
                  "change": 0.003,
                  "change_percent": 0.24,
                  "previous_close": 1.262,
                  "value": 1.265
                }
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_zsnfgaw3"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "maxItems": 5,
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-11T01:30:50.358Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-11T01:30:49.315Z"
    },
    "resource": "https://finance-api.kdlcfa.workers.dev/forex-snapshot",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Multi-pair forex snapshot (EURUSD, GBPUSD, USDJPY, USDCNY, AUDUSD, USDCAD, USDCHF, USDVND) in a single call, delayed, via Yahoo Finance"
}

What the leaf hashes

{"body":"59573249fb90206fa127cfd42da56efe82b91ac6199aa9f55763ed38edcc1615","id":75275,"kind":"listing","method":"baseline/1","observed_us":1793025490287015,"prev":null,"subject":"x402_bazaar:https://finance-api.kdlcfa.workers.dev/forex-snapshot","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xfd51097ebbbe2fd6d1b8eec388b996f9e4e2819d375121c828796f321ba8b2c4
2. 0x6e07aab6357ed26f1c83bb4765e8ca13ae6a92293f4c5a91626e82b5bcdaf434
3. 0x0dd1f8061fcba6ef9986eae4e936754a0f46aefe5bd3f95537711b151c7b2d63
4. 0x5fb61498d1b99e81ba2bf0cd92f1d8f370f3d7ec06491e2d74a2213d83ca5e6a
5. 0x992ac79b014c143bf87d420d150e22a9626d880f58f3eaf9a7f7628bcdf56b72
6. 0x2ccaa6a6d48b59ae0f318490782be324b403cd2215f077198e29176d7e8af799
7. 0x54efd281bb4ef97817ce6d4185f602ee75ade1467b3be4902e35ae45e8b761e6
8. 0x84fcbf9084b28f238438ac4d9876478372649681b2009b8d5736b9967ba7cf40
9. 0x6e1f0afcddd1b3d9cd8cd2ff05e97191611187b7d5935f01db5dc676eff2d6a4
10. 0x18a4daa4511fe79833aca9d1cfcd84bb5da542f81ee07b2f2e60bedd15a277cc
11. 0x2e09594bba0b7c90654eee0c9a8e6b9ed83ead47a7e7c90e73414beaf0ad4088
12. 0xa1d268c111b09550fdb70b6d9d0b58c94dc828b083baa8f1360300aab6230a9c
13. 0xbee644d57738676bfb20eb90d6021f364bf883a8d54f8d17e9dc4749b4074c3d
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae