← The evidence ledger
Evidence row 2205248
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://landvergleich.halowerk.com/v1/local-background-deviation-elevation
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 39e2ac05542638733db7951991375f5d6bcd30a69df10a911c2ebb613f3f20a6
- Leaf
- 0x10b763357fec969ea498289fa27430cd5bc9b813340f539e4c9f5bfc4239fb08
What was observed
{
"endpoints": [
[
"x402",
"https://landvergleich.halowerk.com/v1/local-background-deviation-elevation"
]
],
"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 elevation 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": "2026-11-02T16:57:10.723Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-02T16:57:10.134Z"
},
"resource": "https://landvergleich.halowerk.com/v1/local-background-deviation-elevation",
"serviceName": "HALOWERK Land Compare",
"tags": [
"land",
"europe",
"change",
"elevation"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Compares the 60 metre site measurement for elevation with a 1,000 metre local background measured from the same source and reports the deviation."
}What the leaf hashes
{"body":"39e2ac05542638733db7951991375f5d6bcd30a69df10a911c2ebb613f3f20a6","id":2205248,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646957486955,"prev":null,"subject":"x402_bazaar:https://landvergleich.halowerk.com/v1/local-background-deviation-elevation","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).
- 0x10b7a3903b0a50547e5e39794c296cb782ce00f60d80534afcd2082863f9647b
- 0xd2f98cad58fa30c48d4432718c02646bac338f6920416e64229b3727495cc676
- 0x8054ea773f7d1d035b9e90e704d9de18e5bf983e5b4a1992a1b73df9dfa040be
- 0x848120e3d2eb6206337e528644cff19bb36675403f68a93efa8872104da0bffb
- 0xb61724aa448e0be3d7cb6879ae94638a15c451f0415bb651bb6b72bea185aa4b
- 0x6810cfc65d119f0603eaa0d030aaba7ca2ef91e9830fe8d614c098d50bd874ec
- 0x8775ac165d284e5f5ee84c552f7253b1f276b27e98c4c9756a57247ffba37236
- 0xe2d77052059f83162e9f9a4d85e99efe03137b2c97b6436790116dfb8406f700
- 0x9ee2061d6c3ec10fa7170b6197660a21351079d736ddde158b2d460ca02ed239
- 0xc9df0040d03626e63b43cfc2287e812ec800c9fd86eea1a659eca17d5998fa53
- 0x5119a4e018483d7f40f02ae2eb91b88a3c147b1798d06b859b735f3f0c65a394
- 0x715a24b0f5dcc05977b0c3347c56e4c0b94bbc2f7d199d9d81cb44c4cf0d9324
- 0x51686476d83f4be87192f4eeb7ac78473591bfaf5a92a1822648fcb019a95a83
- 0x9914dfe331775bd1714304f757d2b6b43ba45167245d645ce50f54a3d8617c4d
- 0xd82979c12a2aae44121bb6058b3364b3a3cbc9be411e35ab0208df5ed56f65d4
- 0x7cb861d18f06406535ade133f716d897f27d257cf0121f99d94c78c713c4b54d
- 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
- 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af