← The evidence ledger
Evidence row 2204344
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://atlantikland.halowerk.com/v1/nl-solar-orientation
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- eb586263c17f4e918fda79580259dd4559d739e95014662a84f67dc3b7b8823e
- Leaf
- 0xcf4423e00867b809425a25c90f6a0bc95e2ae310c1d7f83f0beda054b88d39a0
What was observed
{
"endpoints": [
[
"x402",
"https://atlantikland.halowerk.com/v1/nl-solar-orientation"
]
],
"name": "HALOWERK Atlantic Land",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "3000",
"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"
},
{
"amount": "3000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6pXwvPgqduMSx33GP8jiVCanpUhZZiPPyG784mNJ7q1Z",
"scheme": "exact"
}
],
"description": "South-facing slope orientation index derived from aspect and slope. The coordinate is validated against the Natural Earth boundary for Netherlands; results outside it are rejected before payment.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"latitude": 52.3676,
"longitude": 4.9041
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"authoritative_status": "preliminary_non_binding",
"category": "country",
"charged": false,
"checked_at": "2026-10-23T02:05:24.197Z",
"confidence": 0.87,
"confidence_method": "Conservative minimum source-family basel",
"data_date": "2015-12-31T23:59:59.000Z",
"evidence_classification": "derived_from_open_geodata",
"generated_at": "2026-10-23T02:05:24.197Z",
"result": "measurement_available",
"risk_level": "not_applicable",
"service": "nl-solar-orientation",
"service_id": "eli-0333",
"status": "success",
"summary": "Netherlands: Solar orientation index: so"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"latitude": {
"description": "WGS84 latitude inside the published European coverage.",
"maximum": 72.5,
"minimum": 34,
"type": "number"
},
"longitude": {
"description": "WGS84 longitude inside the published European coverage.",
"maximum": 40.5,
"minimum": -31.5,
"type": "number"
}
},
"required": [
"longitude",
"latitude"
],
"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": "2026-11-02T17:19:10.09Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-02T17:19:09.836Z"
},
"resource": "https://atlantikland.halowerk.com/v1/nl-solar-orientation",
"serviceName": "HALOWERK Atlantic Land",
"tags": [
"land",
"europe",
"country",
"nl",
"solar-orientation"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "South-facing slope orientation index derived from aspect and slope. The coordinate is validated against the Natural Earth boundary for Netherlands; results outside it are rejected before payment."
}What the leaf hashes
{"body":"eb586263c17f4e918fda79580259dd4559d739e95014662a84f67dc3b7b8823e","id":2204344,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646901049281,"prev":null,"subject":"x402_bazaar:https://atlantikland.halowerk.com/v1/nl-solar-orientation","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).
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- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af