← The evidence ledger
Evidence row 2228394
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://ostland.halowerk.com/v1/ro-solar-orientation
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- ffb5508a94ffd426b4f779f013cc089e295ce7d135a2995d178bbeb7cd677a79
- Leaf
- 0x9aa8efc72acad7da2c61fbffb2ac914718045240ced1bc2aa6cbd7305e677a53
What was observed
{
"endpoints": [
[
"x402",
"https://ostland.halowerk.com/v1/ro-solar-orientation"
]
],
"name": "HALOWERK Eastern 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": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
},
"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 Romania; results outside it are rejected before payment.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"latitude": 44.4268,
"longitude": 26.1025
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"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"
}
},
"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": "2026-11-02T17:19:18.022Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-02T17:19:17.525Z"
},
"resource": "https://ostland.halowerk.com/v1/ro-solar-orientation",
"serviceName": "HALOWERK Eastern Land",
"tags": [
"land",
"europe",
"country",
"ro",
"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 Romania; results outside it are rejected before payment."
}What the leaf hashes
{"body":"ffb5508a94ffd426b4f779f013cc089e295ce7d135a2995d178bbeb7cd677a79","id":2228394,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793647421709227,"prev":null,"subject":"x402_bazaar:https://ostland.halowerk.com/v1/ro-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).
- 0x9aa923d53ca75cc7d99779a52604f375d9cbf0fcfb938bfa7315d6b77a63492e
- 0x557f8f74f4431038a8c4f3bab1d4131986c6d096ad940b7be68f0ca68a341066
- 0x6d227918ca42cc27fbbbeab79bf74c452c96f0a607616280355353f4264b968e
- 0x88bd38017f81b51659d69e4127e71fa5e12150a973fa7b1906dcd2fc1c7fe65b
- 0xd12d9629ed18a153ed7eadb342a2db2c9b726764fd2fddf0f962577cb5646a2e
- 0x85658c4469e63c07e9d6cba7b9534cd756bb0bba85293fa2da34efce53a1caec
- 0x9dcdb8d92798eca0e15e553332084957fbf6ed2568cfb3fe5f75b087609dd990
- 0x007b85ab13b2becc373632282346edd450987e77092522fd4934c923ab89df2e
- 0xe2f964f89e9879336d2e4520138b5d4efad93fd0955d6bc7c123548976db6159
- 0xbb0a170f32756995c1e5f363753aae71db3439b90b05ca8116bee61f7b43c7df
- 0xa44c4a36b8d86fa938e0f579106116effb29fcc0a86614f8c076cc4254c220f6
- 0xbea97ef87badb4a269a9a806e24faae33a7711fec91ccdaba808349c0475fe9f
- 0x96eeba0e0bb8dfa0ca66d907340b43514f88c7ff36bd9a1299bad5cc5219d2d0
- 0xc5de092f33d9a5a2d3076d47423feb11b0630cdc080163babf6390bb04568ce5
- 0x9c91ecb84461aa4cb2a891252746755d862a88fe9bad822700cdb99eaab2edca
- 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af