← The evidence ledger
Evidence row 118782
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://prop.halowerk.com/v1/energy-certificate
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- d9142af1339c20b63acc847144966bccfa6a0b57e922dcc0ab61c64ff094d2c9
- Leaf
- 0x28f60dc464830d04fc73a45add8d56bb7af0a95dbe44787a52001d65a383cda7
What was observed
{
"endpoints": [
[
"x402",
"https://prop.halowerk.com/v1/energy-certificate"
]
],
"name": "prop.halowerk.com/v1/energy-certificate",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "2000",
"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": "Subtracts exported energy from supplied site energy, divides by conditioned floor area and selects the first caller-supplied ascending maximum-intensity band. It does not normalize climate or occupancy, convert primary energy, audit meters or issue a legally recognized energy certificate.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"annual_exported_energy_kwh": 18000,
"annual_imported_energy_kwh": 312000,
"conditioned_floor_area_m2": 2400,
"supplied_bands": [
{
"label": "A",
"maximum_kwh_per_m2_year": 80
},
{
"label": "B",
"maximum_kwh_per_m2_year": 120
},
{
"label": "C",
"maximum_kwh_per_m2_year": 170
},
{
"label": "D",
"maximum_kwh_per_m2_year": 240
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"annual_exported_energy_kwh": {
"maximum": 1000000000000000000,
"minimum": 0,
"type": "number"
},
"annual_imported_energy_kwh": {
"maximum": 1000000000000000000,
"minimum": 0,
"type": "number"
},
"conditioned_floor_area_m2": {
"maximum": 1000000000000,
"minimum": 0.01,
"type": "number"
},
"supplied_bands": {
"items": {
"additionalProperties": false,
"properties": {
"label": {
"maxLength": 64,
"minLength": 1,
"type": "string"
},
"maximum_kwh_per_m2_year": {
"maximum": 1000000000000,
"minimum": 0,
"type": "number"
}
},
"required": [
"label",
"maximum_kwh_per_m2_year"
],
"type": "object"
},
"maxItems": 100,
"minItems": 1,
"type": "array"
}
},
"required": [
"conditioned_floor_area_m2",
"annual_imported_energy_kwh",
"annual_exported_energy_kwh",
"supplied_bands"
],
"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"
}
}
},
"lastUpdated": "2026-10-08T06:12:36.28Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 4,
"lastCalledAt": "2026-10-08T06:12:35.828Z"
},
"resource": "https://prop.halowerk.com/v1/energy-certificate",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Subtracts exported energy from supplied site energy, divides by conditioned floor area and selects the first caller-supplied ascending maximum-intensity band. It does not normalize climate or occupancy, convert primary energy, audit meters or issue a legally recognized energy certificate."
}What the leaf hashes
{"body":"d9142af1339c20b63acc847144966bccfa6a0b57e922dcc0ab61c64ff094d2c9","id":118782,"kind":"listing","method":"baseline/1","observed_us":1793025613709756,"prev":null,"subject":"x402_bazaar:https://prop.halowerk.com/v1/energy-certificate","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0x28f623c906f1bbbf1d5c3998a0b169b9e68956b6d2ec9d35c15beab6a2befb37
- 0xfc06bf6865c6ecde92ee8e77d2021ad146d2260ac1fec4fd61178920d99b43f9
- 0x549e8043b5ad009d6acc8d3b544c7dfebbf1f5a787d0cf8eec5d1f138f0ac3ff
- 0x42b611cb2ba6435ec192a4db7b45c6c7015b5eb2a58474f80f1881a294005682
- 0x3873b7bdeb0d2e68a0d154b434a4c490852692bcdef9e0d47d90849e6ab4418f
- 0x8ec0bace5478c6972d99d1f6f6c432352e4b22b518dd9f5430c3774dc5a7c970
- 0x5ffab8ac526eef0666737a91318454d058a565eda7ae2bd51228cc8625fe01ff
- 0x454d96d928365d3f16bc2c9984a73cbff84c6f4dea08c85c0c4e1bdc2f1e0030
- 0x6c1c91b7bd94d6161a4778b8e9ec8fa0217ee2d98e09f4e818651e42f5b53f48
- 0x1a9dd2d6c9bfb929760c53b8e10be270bca312fc14f5154114295b3087b11726
- 0x525ed12bc40d74342377fb46a14f281838d153c85147520116f4d7fa219aff5e
- 0xeab0020f03650c1a79ed79927ae9d808c59a41295a86d1285582516590c954e6
- 0x16a8fb19a5e4f4535e7cb3fce5c15ecfa188586bb74e347ee71164f8af27dfe1
- 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae