Evidence row 76914

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://kbv-server-f7vfitmlkq-du.a.run.app/v1/business/batch"
    ]
  ],
  "name": "Korea Business Verify (KBV)",
  "owner_address": "0xbd23a7e6ee1f1b8b5d5aefeb4fbde2b84c04bd5c",
  "raw": {
    "accepts": [
      {
        "amount": "2000000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "permit2",
          "facilitatorAddress": "0x59B7Ebc67a3d627FABAF06768c818638452Ae704",
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xbD23a7e6eE1F1b8b5D5AeFEB4fBdE2B84C04bD5C",
        "scheme": "upto"
      }
    ],
    "description": "Screen a supplier list against two registries at once: check up to 100 companies per call, $0.02 per number, and get registration status plus any public-procurement debarment on record. A company can be active and still barred from public contracts, so the summary counts how many are currently debarred. Live Korean National Tax Service and Public Procurement Service data.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "business_numbers": [
                "124-81-00998",
                "123-45-67890"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "results": [
                {
                  "business_number": "1248100998",
                  "cache": false,
                  "checked_at": "2026-09-03T00:56:04.239Z",
                  "closed_date": null,
                  "source": "Korea National Tax Service (NTS)",
                  "status": "active",
                  "status_code_raw": "01",
                  "tax_type": "general"
                },
                {
                  "business_number": "1234567890",
                  "cache": false,
                  "checked_at": "2026-09-03T00:56:04.239Z",
                  "closed_date": null,
                  "source": "Korea National Tax Service (NTS)",
                  "status": "not_registered",
                  "status_code_raw": "",
                  "tax_type": "general"
                }
              ],
              "summary": {
                "active": 1,
                "closed": 0,
                "not_registered": 1,
                "suspended": 0,
                "total": 2
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "business_numbers": {
                      "description": "1-100 Korean business registration numbers; hyphens/spaces allowed",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 100,
                      "minItems": 1,
                      "type": "array"
                    }
                  },
                  "required": [
                    "business_numbers"
                  ]
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "eip2612GasSponsoring": {
        "info": {
          "description": "The facilitator accepts EIP-2612 gasless Permit to `Permit2` canonical contract.",
          "version": "1"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "amount": {
              "description": "The amount to approve (uint256). Typically MaxUint.",
              "pattern": "^[0-9]+$",
              "type": "string"
            },
            "asset": {
              "description": "The address of the ERC-20 token contract.",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "deadline": {
              "description": "The timestamp at which the signature expires.",
              "pattern": "^[0-9]+$",
              "type": "string"
            },
            "from": {
              "description": "The address of the sender.",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "nonce": {
              "description": "The current nonce of the sender.",
              "pattern": "^[0-9]+$",
              "type": "string"
            },
            "signature": {
              "description": "The 65-byte concatenated signature (r, s, v) as a hex string.",
              "pattern": "^0x[a-fA-F0-9]+$",
              "type": "string"
            },
            "spender": {
              "description": "The address of the spender (Canonical Permit2).",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "version": {
              "description": "Schema version identifier.",
              "pattern": "^[0-9]+(\\.[0-9]+)*$",
              "type": "string"
            }
          },
          "required": [
            "from",
            "asset",
            "spender",
            "amount",
            "nonce",
            "deadline",
            "signature",
            "version"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-22T02:43:29.851Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-22T02:43:29.575Z"
    },
    "resource": "https://kbv-server-f7vfitmlkq-du.a.run.app/v1/business/batch",
    "serviceName": "Korea Business Verify (KBV)",
    "tags": [
      "supplier-screening",
      "debarment-check",
      "sanctions-screening",
      "batch-kyb",
      "korea"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Screen a supplier list against two registries at once: check up to 100 companies per call, $0.02 per number, and get registration status plus any public-procurement debarment on record. A company can be active and still barred from public contracts, so the summary counts how many are currently debarred. Live Korean National Tax Service and Public Procurement Service data."
}

What the leaf hashes

{"body":"7f890c87f3bf99a330f754b2ea322b0fc410cec98fbf657274a0bcb72f066c36","id":76914,"kind":"listing","method":"baseline/1","observed_us":1793025493119913,"prev":null,"subject":"x402_bazaar:https://kbv-server-f7vfitmlkq-du.a.run.app/v1/business/batch","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. 0xfc517e13804aa6087b7541bd0b476bb636bfe55e56ba8bf848eac0c48329f7e0
2. 0x9e17d5b3324ffeb3f8990667dbf8e55c5e9337084ad2a5bd15985e642cdf6ebe
3. 0x260177708e62689ba8fd17b7d9775e8e6cb74f7d8832e47619d9615acb381622
4. 0x1badedd4a2fdbf08cb0d3b4d938c03057f8fcea5e459675795b25718d5b5267b
5. 0x867c0484b6af1d488b690868db261ef55167a600dc58854acf714911c5796009
6. 0x69813319eb6d15c064fcf923e24391533ef4847d57f0e9a5d3800b7a15d3d23c
7. 0xfc57ce7f96e37cbc80e7b074a0c883077c5a1d13fb90769005f4669226950b98
8. 0xba4ae99e77fe28bff072a08b18960d0c26da5eea7a706f28e5703b9907124643
9. 0xd5e84a76f08a9f9783e8b3ad62be6916de98755223b57f9f65d3166696157302
10. 0x3a8d3d4169cff276684d88a4f127811b670ead57557bd0903bd3af277772b2c1
11. 0x51bc8fcd224b36d2c60fa49f46f383ee8328191b9e73209ce8018f2612c3d42f
12. 0xf8173f36b7a27e1bb0f6961a49501bba1d99349c5e11449d0d557fbaa910be0a
13. 0xbee644d57738676bfb20eb90d6021f364bf883a8d54f8d17e9dc4749b4074c3d
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae