← The evidence ledger
Evidence row 60259
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://1gateway.dev/v1/trade/hs
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 84e9f8d393edc94955bfd14d0bdc9f5e056c7ae228d8921808d2c11dc1a06b53
- Leaf
- 0x41fc873c479026bb23b646903c52984da05dad04c06357cc3e20ada8f497f204
What was observed
{
"endpoints": [
[
"x402",
"https://1gateway.dev/v1/trade/hs"
]
],
"name": "1gateway",
"owner_address": "0x6246eee0355dd7a93c888fe59e1151388a0cc5a1",
"raw": {
"accepts": [
{
"amount": "4500",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x6246eee0355Dd7A93C888fE59e1151388A0cC5a1",
"scheme": "exact"
}
],
"description": "Use when you need South Korea's monthly trade for a product by HS code (e.g. 8542 chips, 870323 cars, 2710 petroleum). Data: Korea Customs Service, finalized monthly. Input: hs (2-10 digit prefix), optional month (YYYYMM, default latest), limit (1-100), sort (exports, imports, balance, total). Output: JSON totals (exports FOB, imports CIF, balance in USD, kg) with YoY % and 10-digit HSK lines with English HS descriptions and YoY. Example: ?hs=8542&month=202608",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"hs": "8542",
"limit": 20,
"month": "202608",
"sort": "exports"
},
"type": "http"
},
"output": {
"example": {
"attribution": "Source: Korea Customs Service (관세청) trade statistics via data.go.kr (datasets 15157908, 15157941, 15101609; no usage restriction). 10-day figures are provision…",
"compareMonth": "2025-08",
"descriptionEn": "Electronic integrated circuits",
"descriptionLevel": "8542",
"hs": "8542",
"lineCount": 20,
"lines": [
{
"balanceUsd": 14762525118,
"descriptionEn": "Electronic integrated circuits; memories",
"exportsKg": 177730,
"exportsUsd": 15733149397,
"exportsYoyPct": 501.4,
"hs6": "854232",
"hsCode": "8542321010",
"importsKg": 41627,
"importsUsd": 970624279,
"importsYoyPct": 54.7,
"nameKo": "디램"
}
],
"month": "2026-08",
"notes": [
"Lines are Korea's 10-digit HSK codes under the requested prefix; descriptionEn is the international HS 6-digit description, nameKo the official Korean line nam…"
],
"sort": "exports",
"total": {
"balanceUsd": 28613943758,
"exportsKg": 1674296,
"exportsUsd": 38235698070,
"exportsYoyPct": 203.1,
"importsKg": 635066,
"importsUsd": 9621754312,
"importsYoyPct": 85.5,
"prevYearExportsUsd": 12615814759,
"prevYearImportsUsd": 5185580976
},
"unit": "USD (exports FOB, imports CIF); weights in kg (net)"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"hs": {
"description": "HS code prefix, 2-10 digits (e.g. 8542 integrated circuits, 870323 passenger cars)",
"examples": [
"8542"
],
"pattern": "^\\d{2,10}$",
"type": "string"
},
"limit": {
"default": 20,
"description": "Max 10-digit lines returned (1-100, default 20)",
"examples": [
20
],
"maximum": 100,
"minimum": 1,
"type": "integer"
},
"month": {
"description": "Month YYYYMM (default: latest finalized month)",
"examples": [
"202608"
],
"pattern": "^(19|20)\\d{2}(0[1-9]|1[0-2])$",
"type": "string"
},
"sort": {
"default": "exports",
"description": "Line order (default exports)",
"enum": [
"exports",
"imports",
"balance",
"total"
],
"examples": [
"exports"
],
"type": "string"
}
},
"required": [
"hs"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"attribution": {
"type": "string"
},
"compareMonth": {
"type": "string"
},
"descriptionEn": {
"type": "string"
},
"descriptionLevel": {
"type": "string"
},
"hs": {
"type": "string"
},
"lineCount": {
"type": "integer"
},
"lines": {
"items": {
"properties": {
"balanceUsd": {
"type": "integer"
},
"descriptionEn": {
"type": "string"
},
"exportsKg": {
"type": "integer"
},
"exportsUsd": {
"type": "integer"
},
"exportsYoyPct": {
"type": "number"
},
"hs6": {
"type": "string"
},
"hsCode": {
"type": "string"
},
"importsKg": {
"type": "integer"
},
"importsUsd": {
"type": "integer"
},
"importsYoyPct": {
"type": "number"
},
"nameKo": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"month": {
"type": "string"
},
"notes": {
"items": {
"type": "string"
},
"type": "array"
},
"sort": {
"type": "string"
},
"total": {
"properties": {
"balanceUsd": {
"type": "integer"
},
"exportsKg": {
"type": "integer"
},
"exportsUsd": {
"type": "integer"
},
"exportsYoyPct": {
"type": "number"
},
"importsKg": {
"type": "integer"
},
"importsUsd": {
"type": "integer"
},
"importsYoyPct": {
"type": "number"
},
"prevYearExportsUsd": {
"type": "integer"
},
"prevYearImportsUsd": {
"type": "integer"
}
},
"type": "object"
},
"unit": {
"type": "string"
}
},
"required": [
"hs",
"descriptionEn",
"descriptionLevel",
"month",
"compareMonth",
"unit",
"total",
"lineCount",
"sort",
"lines",
"notes",
"attribution"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791609992/bazaar-icons/c4d9db8f8f483844.png",
"lastUpdated": "2026-10-11T05:27:43.665Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-11T05:27:43.428Z"
},
"resource": "https://1gateway.dev/v1/trade/hs",
"serviceName": "1gateway",
"tags": [
"korea",
"trade-statistics",
"hs-code",
"imports-exports",
"korea-customs"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Use when you need South Korea's monthly trade for a product by HS code (e.g. 8542 chips, 870323 cars, 2710 petroleum). Data: Korea Customs Service, finalized monthly. Input: hs (2-10 digit prefix), optional month (YYYYMM, default latest), limit (1-100), sort (exports, imports, balance, total). Output: JSON totals (exports FOB, imports CIF, balance in USD, kg) with YoY % and 10-digit HSK lines with English HS descriptions and YoY. Example: ?hs=8542&month=202608"
}What the leaf hashes
{"body":"84e9f8d393edc94955bfd14d0bdc9f5e056c7ae228d8921808d2c11dc1a06b53","id":60259,"kind":"listing","method":"baseline/1","observed_us":1793025448168771,"prev":null,"subject":"x402_bazaar:https://1gateway.dev/v1/trade/hs","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).
- 0x41fc7efc40d34356642bf8b30ce03bea99527f382d7384ea383b393bb1c85138
- 0x0a17143df07cea65c7cf13c1deff636428a3f7cf64c5f8b07a19162ea9c524a4
- 0x0f82d5dd984c065311fc0d55765b86d35b02b42c7e50759e7002eec0a8caf57b
- 0xdc6d096654822373684d67aa499a742988668659781daf2afc2508037daa3b71
- 0x52471a4f195560b9ae7a0464123a12ba4376de601e626d3ea725855942a80a81
- 0x2a176e921b41420cdf613e5c658cd20099c0fa68432fc59e9764831ee3d3f402
- 0xf48aebd79679afe630434223e9e16dc072f311b83a46dab512ea4be35db28c78
- 0x5b24de25e0efbd884f8044e6997cd406ced1524715287b3bc1f1241717da28ad
- 0xe4b55fb5554028f40e1fa2447d497ac34765aa2f6342a542f4bd2ed3677ec55b
- 0xfeffd663d71e06910d19eae83256a9e7825e132ad736c20f6e71e3ac2dec7d86
- 0x40430b285418db6d3a5a2c626d90ef47fc069d45eb9e4fbee49da2a4e637758f
- 0x58f4330f9ac32da273a2a76d85bc0768d037638cddbd3d1f09d9b64094bfd942
- 0xd406739acce2ba016f8d49081b15f266a4ea4a0b0fc5ef171c89c8fd2dda4d80
- 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
- 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae