Evidence row 117727

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://opendata402.com/v1/validate/iban"
    ]
  ],
  "name": "opendata402",
  "owner_address": "0x295aa6c5a3460a0f8755823c8ee7bbc7caf79fb1",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:8453",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:137",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:42161",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      }
    ],
    "description": "Validate an IBAN: country, expected length, ISO 13616 mod-97 check digits, and the bank code part for common countries (NL, BE, DE, FR, GB, ES, IT, AT, CH, LU), plus the electronic and printed formats. Use it before sending a payment or storing bank details. Pure computation: the IBAN is not stored or forwarded, and no account existence check is made.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "iban": "NL91ABNA0417164300"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "bank_code": "ABNA",
              "checksum_ok": true,
              "country": "NL",
              "electronic": "NL91ABNA0417164300",
              "length_ok": true,
              "printed": "NL91 ABNA 0417 1643 00",
              "valid": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "iban": {
                      "description": "IBAN, spaces allowed.",
                      "pattern": "^[A-Za-z]{2}[0-9]{2}[A-Za-z0-9 ]{8,40}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "iban"
                  ],
                  "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"
        }
      }
    },
    "lastUpdated": "2026-10-14T22:53:59.764Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-14T22:53:59.491Z"
    },
    "resource": "https://opendata402.com/v1/validate/iban",
    "serviceName": "opendata402",
    "tags": [
      "iban",
      "banking",
      "validation",
      "payments",
      "sepa"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Validate an IBAN: country, expected length, ISO 13616 mod-97 check digits, and the bank code part for common countries (NL, BE, DE, FR, GB, ES, IT, AT, CH, LU), plus the electronic and printed formats. Use it before sending a payment or storing bank details. Pure computation: the IBAN is not stored or forwarded, and no account existence check is made."
}

What the leaf hashes

{"body":"5ea50f6fb2347a74bf415307e1e38f1555622409af20978d555dd8f90b710c55","id":117727,"kind":"listing","method":"baseline/1","observed_us":1793025611825630,"prev":null,"subject":"x402_bazaar:https://opendata402.com/v1/validate/iban","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. 0xed52c10339a03c011b10b96599dcee2cbb806152922e3f9ee7a78132ed5b77e9
2. 0xbefe9c0dbe371f246cd7db28dcc0d877e0fda8f3e9f3ee3a9bffc70807db5049
3. 0xf3de4ca6cee91c87ddef2413677bdab7be0d554552066638746a7a0285e51d68
4. 0xbb66845676a126e14346ddd2b5e68924ed05f4092f696b20b3ba40d3d6be90e6
5. 0x549baf49c4e77c3c2b19847228fc13a7c1b7078a99effe14d4403792f0d33929
6. 0x04ae6066addb0b822df60763ff32e3ea60728545f1fbb9af2731a44b0134c2f3
7. 0x7eb343c620609f7ca4e93cfd822f3cb0c943b0c093432fd2826fedd5f8b6abff
8. 0xb9186939110b19e10eaf2e97372105a74f60a626b87a9710994652aa01044d41
9. 0x23a488f39d9ef5e7319c35a6d41a9cb9cca6c214c02346c750ba7df46d6a6e3b
10. 0x6c23cb72ed5e32360c8c43188de0875681092b01554d2a31d5f096fdae959492
11. 0x3f07a2115848067024e2992cb2c05a86eb8d02df5abfcead8bc47854e501603e
12. 0xe158f09cdbfb4f7be1bfd45fce3afcad32c2b3bb2fc2e181dadc193bbf194bfc
13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae