Evidence row 76971

Observed 26 Oct 2026, 14:38 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://klima.halowerk.com/v1/footprint-aggregate
Recorded: 26 Oct 2026, 14:38 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 773e39d81ad27458926758aa33e428ddf9eb47d3f691b5fd0c53c4370b648bee
Leaf: 0x78028f437ab60b06afe0db63f8e0ad8402c3e01b4427ca099545ebb3a8707b21

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://klima.halowerk.com/v1/footprint-aggregate"
    ]
  ],
  "name": "klima.halowerk.com/v1/footprint-aggregate",
  "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": "Aggregates disclosed footprint components while keeping missing values separate. 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": {
              "activities": [
                {
                  "id": "electricity",
                  "kgco2e": 300,
                  "period": "2026",
                  "source_title": "published factor"
                },
                {
                  "id": "travel",
                  "kgco2e": null,
                  "period": "2026",
                  "source_title": ""
                }
              ]
            },
            "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": {
                    "activities": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "id": {
                            "description": "",
                            "maxLength": 512,
                            "minLength": 1,
                            "type": "string"
                          },
                          "kgco2e": {
                            "minimum": 0,
                            "type": [
                              "number",
                              "null"
                            ]
                          },
                          "period": {
                            "description": "",
                            "maxLength": 100,
                            "minLength": 0,
                            "type": "string"
                          },
                          "source_title": {
                            "description": "",
                            "maxLength": 300,
                            "minLength": 0,
                            "type": "string"
                          }
                        },
                        "required": [
                          "id",
                          "kgco2e",
                          "source_title",
                          "period"
                        ],
                        "type": "object"
                      },
                      "maxItems": 10000,
                      "minItems": 1,
                      "type": "array"
                    }
                  },
                  "required": [
                    "activities"
                  ],
                  "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": "2026-10-23T01:46:59.667Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-23T01:46:59.261Z"
    },
    "resource": "https://klima.halowerk.com/v1/footprint-aggregate",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Aggregates disclosed footprint components while keeping missing values separate. 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":"773e39d81ad27458926758aa33e428ddf9eb47d3f691b5fd0c53c4370b648bee","id":76971,"kind":"listing","method":"baseline/1","observed_us":1793025493191079,"prev":null,"subject":"x402_bazaar:https://klima.halowerk.com/v1/footprint-aggregate","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

0x7801d5104da9fa591002e0089e3b6c08d0767b1c6b89ad81f7549a8c7bc3bbde
0xa7b92d3ca4477c9d9a5a1a0d99c8c5b6fd36a614b3089623af9fe2c6a7a67604
0x1f9e2d579fcb3e2def856ab94053baa548878e54f9ee3301da1530c0e84483b5
0x2f373b7d61ed7e61afdd99ba5abfaa77cf8de096deef4037e526fdcaf932020e
0x7300f8c303bb7eeabd1d15a0b0e54d2e4050a138e51a2f66bdacfa873fb75978
0xda7cdba8f06b35725df298c9d117d7a6f7cb12b6be61ba4b9daa9c19022a774b
0x414aad210fde37a1bd8b38bbce8bffa0ca0b27187038875826c9fd7825ecc1a7
0x7102fdf264cb2d9dc369e9da50c914762e1ba7632911c32bfefd0fc964c33121
0xe7a567a06402dbc17c02e19cb76a342a6e2e155568ea808558236b065d1478f7
0x7289d13e9c5129911e8dd0a94c4ccdb3088dca627d8df693e7d7c3b58bbbd576
0x8fe7ebf89d10ac2e699de3f80f5dda3e72eef4ae079794ab7d1035929ad723cc
0x8fdfac9874f184de58b63efbdab0fc27674958d741146d02f58b04d3c559cabf
0xdef3cab0b4070d8ad7f4f91288da4881d19789f131b1b353621df79df04a0617
0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON