← The evidence ledger
Evidence row 76973
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://klima.halowerk.com/v1/ghg-scope
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 7fb026c433e44be083baafcdc7ac796e7e68475bf360c5c9c2308a2e97ac952a
- Leaf
- 0x381d5a7daeae5ed0e6a2abaa0594f869a7b180ea5aad0a726356d0ffd6bd5aae
What was observed
{
"endpoints": [
[
"x402",
"https://klima.halowerk.com/v1/ghg-scope"
]
],
"name": "klima.halowerk.com/v1/ghg-scope",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "4000",
"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": "Classifies an activity into a caller-selected GHG scope using explicit rule matches. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"activity": "purchased electricity",
"rules": [
{
"category": "purchased energy",
"keyword": "electricity",
"scope": "2"
}
],
"source": {
"published_at": "2026-01-01T00:00:00Z",
"title": "GHG Protocol Corporate Standard",
"url": "https://ghgprotocol.org/corporate-standard"
}
},
"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": {
"activity": {
"description": "",
"maxLength": 512,
"minLength": 1,
"type": "string"
},
"rules": {
"items": {
"additionalProperties": false,
"properties": {
"category": {
"description": "",
"maxLength": 512,
"minLength": 1,
"type": "string"
},
"keyword": {
"description": "",
"maxLength": 512,
"minLength": 1,
"type": "string"
},
"scope": {
"enum": [
"1",
"2",
"3"
],
"type": "string"
}
},
"required": [
"keyword",
"scope",
"category"
],
"type": "object"
},
"maxItems": 1000,
"minItems": 1,
"type": "array"
},
"source": {
"additionalProperties": false,
"properties": {
"published_at": {
"format": "date-time",
"type": "string"
},
"title": {
"description": "",
"maxLength": 300,
"minLength": 3,
"type": "string"
},
"url": {
"format": "uri",
"type": "string"
}
},
"required": [
"url",
"published_at",
"title"
],
"type": "object"
}
},
"required": [
"activity",
"rules",
"source"
],
"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": "2026-10-23T01:47:03.852Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-23T01:47:03.452Z"
},
"resource": "https://klima.halowerk.com/v1/ghg-scope",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Classifies an activity into a caller-selected GHG scope using explicit rule matches. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice."
}What the leaf hashes
{"body":"7fb026c433e44be083baafcdc7ac796e7e68475bf360c5c9c2308a2e97ac952a","id":76973,"kind":"listing","method":"baseline/1","observed_us":1793025493193241,"prev":null,"subject":"x402_bazaar:https://klima.halowerk.com/v1/ghg-scope","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).
- 0x381d59b8e79682e9ab065e25860ea4be0f12f1f3106c15677134742fbc81925a
- 0xc54577940966a11c6c6c03abde61c22b3ca52bf5b95beb814874ec589cf4e1c6
- 0x787b9ee7815d2d9fec7442a51f03a0d366b6afb0f4b548fa122f3703e762acd0
- 0x02638b5f591613fe8fc544b715f95bdfc6080108237be804bcf5e24d405a95ee
- 0xbddda02580325b81d1a5ed8cad509b61afde3c13b7a4c9830c34efea36429c68
- 0x1e26f188dc3da928fa3c2a684a7b8add5af43c333756e8dd1c4071c6f7de6a51
- 0xc698d12562ae013df0c56300843045708146b4f6e40ee2230f270a669de11983
- 0x5dfb420c19d6d9312195dcd4ebeb850f584c2b577675367d9e1fc478aba36fb5
- 0xd70a09e0e0b4a35dec7a6bb73e580c5932242874550c060e22f88f35b7f20291
- 0xff1ff8dcc12c50635e4a66c3c00beef7e027b751a84ecfd916d28b30b631ab0f
- 0xac34ddbc48fae726d62603aa0121ea4aa01a5fe05b84c5335b25521c1e72ed07
- 0x8b23d34f6cd746f123b1e4d09449280800a81e00febe1fd9224b6802057238d5
- 0xdfc7a920beab71e6882e75c57bf136a5354c4ea989a35108a69046bc62059090
- 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
- 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae