← The evidence ledger
Evidence row 2205246
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://landvergleich.halowerk.com/v1/local-background-deviation-max-slope
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- fc1bb6d172c4adf7b3343db0da9690301267d51779736325883a1bbb82862326
- Leaf
- 0xa96d1ead833eff56383591866854f3db901564c198fccef2043e7a26fff7ac11
What was observed
{
"endpoints": [
[
"x402",
"https://landvergleich.halowerk.com/v1/local-background-deviation-max-slope"
]
],
"name": "HALOWERK Land Compare",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "8000",
"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": "8000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6pXwvPgqduMSx33GP8jiVCanpUhZZiPPyG784mNJ7q1Z",
"scheme": "exact"
}
],
"description": "Compares the 60 metre site measurement for maximum slope with a 1,000 metre local background measured from the same source and reports the deviation.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"latitude": 51.9,
"longitude": 7.1
},
"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": "2026-11-02T16:57:52.227Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-02T16:57:51.951Z"
},
"resource": "https://landvergleich.halowerk.com/v1/local-background-deviation-max-slope",
"serviceName": "HALOWERK Land Compare",
"tags": [
"land",
"europe",
"change",
"max-slope"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Compares the 60 metre site measurement for maximum slope with a 1,000 metre local background measured from the same source and reports the deviation."
}What the leaf hashes
{"body":"fc1bb6d172c4adf7b3343db0da9690301267d51779736325883a1bbb82862326","id":2205246,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646957480249,"prev":null,"subject":"x402_bazaar:https://landvergleich.halowerk.com/v1/local-background-deviation-max-slope","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).
- 0xa96d0b58bb9634a574437990c575d614336a81f8adfc5dc32339ebb1418ccc0a
- 0x5688fbc81303edae52ef0f5d4e7e44b577b29fcba6d1ba57a7819ecba26ee4f3
- 0xfc618b55ef827b64744a6fba2d19bb58dced4d6900a9df6c6039e803edf2df18
- 0x273e60a1de18a628aa2031e4af26775e0f2eee44780c9d11e12295605512fc81
- 0x3e14b064649baa39d66b4491c0794070326a565efce530135be4078cb07803a5
- 0xb1e03c7ec31e284bb42178a5f2a83effc9c9d08c281aaccc50d8fcf1bf9be5dd
- 0x41e21a857f1cf9a08273a27ed6512ad5bbb3f13c0bab3cd35c46f578144e31a5
- 0x4f7177593fae0f91c79374f1c1a234e84719164239e188d69d2e543feb63875b
- 0xb70befbd47bee8fb74b1cb6672de71a41acc3c14063835352707adc6698a70b1
- 0x524ce42c523d8c6e1d1ec0174bba51f536c713eb3bfb864da6018180f5af8342
- 0x4d7cdfd8e8f99b330d5f369404d97728e338c5af683cc5165d22a06349000ca3
- 0xd092c4592746638c988be0201bef3aa0097a159b2bde204654e1174f70c7897c
- 0xf7fc51348087e5c1e3d386772d38113ebc053fa2bb0a5e6728e5f86d0ac25db5
- 0x7a6e52c5cebe3ec69d18cc200885d32108ba1be1b19f2da2ead8becbf3db3cb1
- 0x7abf7290721a0b95be706db03c09de9df65bcba8e18ffe4616da43d9c31d6b0a
- 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af