Evidence row 67467

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://mcp.gapup.io/api/v1/call/fx_rate"
    ]
  ],
  "name": "mcp.gapup.io/api/v1/call/fx_rate",
  "owner_address": "0xba1e0a29b7c3ca3bca23ffd6922c6c37fbcc730c",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "description": "Foreign exchange currency conversion rate lookup, returns live rate, timestamp and source for any currency pair",
        "extra": {
          "assetTransferMethod": "eip3009",
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "2000",
        "maxTimeoutSeconds": 60,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "payTo": "0xbA1E0A29B7C3CA3BCa23FfD6922c6c37fBcc730c",
        "resource": "https://mcp.gapup.io/api/v1/call/fx_rate",
        "scheme": "exact"
      }
    ],
    "description": "Foreign exchange currency conversion rate lookup, returns live rate, timestamp and source for any currency pair",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "from": "example",
              "to": "example"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "result": {},
              "source": "rest-api",
              "tool": "fx_rate"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "description": "Foreign exchange currency conversion rate lookup, returns live rate, timestamp and source for any currency pair",
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "properties": {
                    "async": {
                      "description": "If true, returns a job_id immediately (<200ms) instead of waiting for the result. Poll the result with job_result(job_id). Use for slow tools to avoid client timeouts.",
                      "type": "boolean"
                    },
                    "date": {
                      "description": "Optional YYYY-MM-DD for a historical rate",
                      "type": "string"
                    },
                    "from": {
                      "description": "Base currency, ISO-4217 (e.g. EUR)",
                      "type": "string"
                    },
                    "to": {
                      "description": "Quote currency, ISO-4217 (e.g. USD)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "from",
                    "to"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                }
              },
              "type": "object"
            }
          },
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T09:07:10.179Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T09:07:09.577Z"
    },
    "resource": "https://mcp.gapup.io/api/v1/call/fx_rate",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Foreign exchange currency conversion rate lookup, returns live rate, timestamp and source for any currency pair"
}

What the leaf hashes

{"body":"f6a620e542967d3eea9426ffb7602cc495f4220b990a7bfc2f66283355290be9","id":67467,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025463553652,"prev":null,"subject":"x402_bazaar:https://mcp.gapup.io/api/v1/call/fx_rate","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. 0x4381d1033e81c3a1f0ff8ba1a8c7fa4ed7dd56515b86bc91707da451d8a87700
2. 0xb439fcbd0ec5e7f41ccdc7b49d331efd87fffc2b2d184c2556aa62980637481e
3. 0x0536a2bc491e5b3b52c3a07501ce99f65739a341d64741553279601fc40bf759
4. 0x13bc034d567feed68d58c8a754602e1114bdd40bee9bac8c458debdf9e09d49b
5. 0xee43ee21bbfb9b4a00c326b08773d3d1eb907e0353debce54ee6121c278f4cdd
6. 0xceae235446b79c3f7190c6d9d6a8e2fdd46a42860c0486abf648aa72ce41ed01
7. 0x8afebd3581e5ebbac324996e6f042bf19586aadb6879a60f1a1c52cf1944cd64
8. 0xf818036d229d495790931e09367b74c660e8580087af0644469fc8ae751c4dad
9. 0xa8a432f0247bf1cbe581bfb2fc9b56b36482b7652c02cc81d89053ba073aedbb
10. 0xa01b5bca0c214269697f527524974087b06149387d7cbefda814e53051695c9d
11. 0x60b91f773fa3c91ef752edc3e72b14aec43590de73fb46a458b7100f8e74b4a7
12. 0x2b1b47804e83988d7fd5ed8179b2334f3f43b318109b54142f6c6bd749076f9e
13. 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae