← The evidence ledger
Evidence row 19283
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://kbv-server-f7vfitmlkq-du.a.run.app/v1/korea-import/requirements/batch
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 52587574514a04e0b31fe2d11d9bbf019117712cd2300ca46a2b97b9adc960af
- Leaf
- 0xa0de54eae9da0b0576af4b9199fd82d505e9cfb36501a7293fc8288309b8bc24
What was observed
{
"endpoints": [
[
"x402",
"https://kbv-server-f7vfitmlkq-du.a.run.app/v1/korea-import/requirements/batch"
]
],
"name": "Korea Business Verify (KBV)",
"owner_address": "0xbd23a7e6ee1f1b8b5d5aefeb4fbde2b84c04bd5c",
"raw": {
"accepts": [
{
"amount": "2000000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "permit2",
"facilitatorAddress": "0x97AcCe27D5069544480BDe0F04D9F47d7422a016",
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xbD23a7e6eE1F1b8b5D5AeFEB4fBdE2B84C04bD5C",
"scheme": "upto"
}
],
"description": "Screen a product catalog for Korean import restrictions in one call. Submit up to 100 HS codes; the restricted ones come back first, each with the statute, the approving agencies, the certificate required and the condition text from the notice. Codes that could not be checked are listed before the clear ones, so \"unverified\" is never mistaken for \"clear\".",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"hs_codes": [
"8516710000",
"7318152000"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"direction": "import",
"results": [
{
"has_requirements": true,
"hs_code": "8516710000",
"item_name_en": "Coffee or tea makers",
"requirement_count": 3,
"requirements": [
"…"
]
},
{
"has_requirements": false,
"hs_code": "7318152000",
"item_name_en": "Bolts",
"requirement_count": 0,
"requirements": []
}
],
"summary": {
"checked": 2,
"clear": 1,
"duplicates_merged": 0,
"failed": 0,
"invalid_hs": [
{
"error": "hs_code_not_found",
"index": 2,
"input": "9999999999",
"message": "Not a current 10-digit Korean HS (HSK) code."
}
],
"total": 3,
"with_requirements": 1
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"direction": {
"description": "Default \"import\"",
"enum": [
"import",
"export"
],
"type": "string"
},
"hs_codes": {
"description": "1-100 Korean 10-digit HS (HSK) codes; dots/hyphens allowed",
"items": {
"type": "string"
},
"maxItems": 100,
"minItems": 1,
"type": "array"
}
},
"required": [
"hs_codes"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"eip2612GasSponsoring": {
"info": {
"description": "The facilitator accepts EIP-2612 gasless Permit to `Permit2` canonical contract.",
"version": "1"
},
"schema": {
"$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": "2026-10-26T03:13:43.71Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T03:13:43.251Z"
},
"resource": "https://kbv-server-f7vfitmlkq-du.a.run.app/v1/korea-import/requirements/batch",
"serviceName": "Korea Business Verify (KBV)",
"tags": [
"screen-catalog",
"korea-import",
"hs-code",
"bulk-import-check",
"cross-border-ecommerce"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Screen a product catalog for Korean import restrictions in one call. Submit up to 100 HS codes; the restricted ones come back first, each with the statute, the approving agencies, the certificate required and the condition text from the notice. Codes that could not be checked are listed before the clear ones, so \"unverified\" is never mistaken for \"clear\"."
}What the leaf hashes
{"body":"52587574514a04e0b31fe2d11d9bbf019117712cd2300ca46a2b97b9adc960af","id":19283,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025331433636,"prev":null,"subject":"x402_bazaar:https://kbv-server-f7vfitmlkq-du.a.run.app/v1/korea-import/requirements/batch","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0xa0dd767e17c6b37bcaaa80f559ee936d68e9c0a113914c32e673afc2da87f879
- 0x374c5d06e8a56a0a1a54944c7ee03d8172334dc9b33ae9847029564a1077127a
- 0xc17e2149ac48d3a04b717426cdb1d97af7e2ab06159aa05349cdff43ac53c8b7
- 0xe1bb9ca8679145c687cc8ab809631207aded8a6f44dc3e3aa5f2c46fea686880
- 0x651ac921b9444ad8c4951b76740419c0ca2334251d24148e262e1e384b2a4c7f
- 0xe15a10d80c7bc81c007348b836d5a76a921609341dbf85f85e68c3991e0b69b5
- 0xc081fc775c4ad3d3aa11e7dc8d0d6fa80130e7b780124e42420233cb3a97d04f
- 0x51df6236b7cdcdae2b83e1f403b6b31ad753cbf16b6b0f07df2d49788fe551d0
- 0x656efeb7d96e50aeb0381af9e9cce10bc5892a86ec74eee8952a09201c5f9ffd
- 0x848cf5e604d5f0c62cc02d3abe512164430820fceefd529d003cbca06e431809
- 0x6e2c6fb1ec16c0d8a0fa917725bdfc512e7ed9f39e77d64f0a911d30e68a27de
- 0x95576cc3dd18642c859f679cefa1cf80bfc6c690b065916c3585b14e8ef4b1b3
- 0xf8d3e004d9a208d2c5e82ab676956d80f8a3c78387c61dad15a3a8269efee0d8
- 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
- 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
- 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae