← The evidence ledger
Evidence row 2200084
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://commerce-validator.halowerk.com/v1/eu/product-page-unit-price-validator
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- bab85ed216470737929eaf749bd8eb9d41ec2e87c2f696592c8fef9fd2e33aa3
- Leaf
- 0xcc37b55874ab97d2980cd693a9f078b1b425485a29cbc01f42a2a6b31b96cdef
What was observed
{
"endpoints": [
[
"x402",
"https://commerce-validator.halowerk.com/v1/eu/product-page-unit-price-validator"
]
],
"name": "HALOWERK EU Commerce Validators",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "4000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"asset": "USDC",
"assetTransferMethod": "eip3009",
"eip712Domain": {
"chainId": 8453,
"name": "USD Coin",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"version": "2"
},
"name": "USD Coin",
"network_name": "Base Mainnet",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"scheme": "exact"
}
],
"description": "Validate the unit price signal in a fixed product page text or HTML snapshot. It reports evidence and missing signals without fetching or retaining the page and without certifying legal compliance.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"customer_country": "FR",
"declared_fields": [
"unit-price"
],
"document_text": "Seller GmbH — unit price declared for this transaction.",
"effective_date": "2026-09-04",
"seller_country": "DE"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"customer_country": {
"enum": [
"AT",
"BE",
"BG",
"HR",
"CY",
"CZ",
"DK",
"EE",
"FI",
"FR",
"DE",
"GR",
"HU",
"IE",
"IT",
"LV",
"LT",
"LU",
"MT",
"NL",
"PL",
"PT",
"RO",
"SK",
"SI",
"ES",
"SE"
],
"type": "string"
},
"declared_fields": {
"default": [],
"items": {
"maxLength": 100,
"minLength": 1,
"type": "string"
},
"maxItems": 200,
"type": "array",
"uniqueItems": true
},
"document_text": {
"description": "Fixed text or HTML snapshot to validate. It is processed in memory and not persisted.",
"maxLength": 50000,
"minLength": 1,
"type": "string"
},
"effective_date": {
"description": "Date on which the commercial decision is evaluated (YYYY-MM-DD).",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"page_url": {
"description": "Optional provenance URL. The validator does not fetch it.",
"maxLength": 2048,
"pattern": "^https?://",
"type": "string"
},
"seller_country": {
"enum": [
"AT",
"BE",
"BG",
"HR",
"CY",
"CZ",
"DK",
"EE",
"FI",
"FR",
"DE",
"GR",
"HU",
"IE",
"IT",
"LV",
"LT",
"LU",
"MT",
"NL",
"PL",
"PT",
"RO",
"SK",
"SI",
"ES",
"SE"
],
"type": "string"
}
},
"required": [
"effective_date",
"seller_country",
"customer_country",
"document_text"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {},
"type": {
"type": "string"
}
},
"required": [
"type",
"example"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"id": {
"maxLength": 128,
"minLength": 16,
"pattern": "^[a-zA-Z0-9_-]+$",
"type": "string"
},
"required": {
"type": "boolean"
}
},
"required": [
"required"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-02T16:56:46.497Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-02T16:56:45.886Z"
},
"resource": "https://commerce-validator.halowerk.com/v1/eu/product-page-unit-price-validator",
"serviceName": "HALOWERK EU Commerce Validators",
"tags": [
"eu-commerce",
"validator",
"product-page",
"product-page-unit-price-validato"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Validate the unit price signal in a fixed product page text or HTML snapshot. It reports evidence and missing signals without fetching or retaining the page and without certifying legal compliance."
}What the leaf hashes
{"body":"bab85ed216470737929eaf749bd8eb9d41ec2e87c2f696592c8fef9fd2e33aa3","id":2200084,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646795814095,"prev":null,"subject":"x402_bazaar:https://commerce-validator.halowerk.com/v1/eu/product-page-unit-price-validator","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0xcc376abff27a4923e055fa8d3335c56f83b9b41b2c610aa073e293b46a665c6d
- 0xc6f0e059ddf8eda48fd4f46db2ee3ac1c7b45f59aec5a92d8c55c4e24c635abc
- 0xc9328972d7de85043ee0114ca2addd00fe8a3904893b19550c7d4f2ed79faf9e
- 0x3cd031a05ce3ee814b0d7d18aad59bde9ba1988ee6c62ded4c2d2fe4f3d41af5
- 0xe37a8bf64a184e472a6e369c848d8e3a0407ae09341d5902f8da2e6e96876515
- 0x70bd67a242102868cf1aa557e41ee6f9a07c7efed27799d8120c5bfd3ec5ceb3
- 0x5438820fb60c7a2ed1f1fc846b7cf609b777762555b2b3079971fd2a7991d86d
- 0x77898879a5439242e3d2006ad09a5afaccbe3b3f87e5aab3a7b463c7e60deb01
- 0xc6f0ce179a629bafca756adcd25c75096d9dde7375c04d499d18ce66e5209011
- 0x5955e594511b0898563ff35b4b1397b2977d71ffd10fef8265c7622c92c88fbc
- 0xaf2a199447c969aea5dcc0dd155218feac3378794b903ace57a61900fe249d4b
- 0x104b0fd7f9e0a9cd51db3ad451e9a16d136da470f6efdf3cf1ad75354f332bc0
- 0x959c0d70f3f85beefd7b1347751e6e712eeaefce78a57d80eda6882038b85a52
- 0x4f21464039902a4044b17c93873adb5a93eecc8e977b4e039acb8cd5f4210b4b
- 0x5b456020389d8e0ef67f16a492c600b5b88189e59398bba308734db7e873e7e4
- 0x37d31d28d0bd3743650d57e9fbf999efa4592cac831267f83aa125335b35a16b
- 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af