Evidence row 2228517

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://ostland.halowerk.com/v1/hr-aspect"
    ]
  ],
  "name": "HALOWERK Eastern Land",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "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": "3000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "6pXwvPgqduMSx33GP8jiVCanpUhZZiPPyG784mNJ7q1Z",
        "scheme": "exact"
      }
    ],
    "description": "Circular direction of the dominant surface gradient, clockwise from north. The coordinate is validated against the Natural Earth boundary for Croatia; results outside it are rejected before payment.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "latitude": 45.815,
              "longitude": 15.9819
            },
            "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": "2026-11-02T16:57:47.202Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T16:57:46.7Z"
    },
    "resource": "https://ostland.halowerk.com/v1/hr-aspect",
    "serviceName": "HALOWERK Eastern Land",
    "tags": [
      "land",
      "europe",
      "country",
      "hr",
      "aspect"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Circular direction of the dominant surface gradient, clockwise from north. The coordinate is validated against the Natural Earth boundary for Croatia; results outside it are rejected before payment."
}

What the leaf hashes

{"body":"b7a00d42fa721833f8bffb5b03ca7b2af60133a61e39a73da34b4fd3754f85bb","id":2228517,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793647424007516,"prev":null,"subject":"x402_bazaar:https://ostland.halowerk.com/v1/hr-aspect","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x4dee3f2916a69bc700a58a4369221c134e51fc6da82123ef3398d7b3d063dea4
2. 0x5bd914e12ff592384baf4166fbf1427b0d3dbe050eb5d3c03104355c137e367c
3. 0x2047eb2e24fe3f23e37ca89685253cde7d1cb36c066acbb068e715b6ddbea8ee
4. 0xd4f9b38ff0e3e98b2be851be4ebb57e045e4f4756f2390b9514c05bbea7de06d
5. 0x94a09fa7cdddd10a3e4c419ff5e309cf50cade5be48d334ca8fd53684015ac8c
6. 0x63f7ffef52f907e2d7ba0d9722e8b8c98b37f986adc365e5cbeafa49c6fb6730
7. 0x72491125d8cc163a85a17ab6896b7728eefb05f7742b2f400b893f128078e98b
8. 0x17c2148cc86a7d1895c49c9a15d1260321987ad43ac453b098497ecf8d03f29c
9. 0xcc700d0acd5ed030f103cedadea029ad312fe8e3fed2d52c189ec4d1f58afa1d
10. 0x7ba5e1ec77659fa4a4973ac05c3ae059df95ad35bf5604644f36b00e69afee1a
11. 0xc86612a5378b818b70c9174e208f739934642177c53c45ddcd023045512b40c4
12. 0x3ad2fbada00103a2a6a570af4a856e0e81a8f194755e65d8a072558bea55dc73
13. 0x5e60d42a83833fb9c9050e07ccab878d6e233865869bd0ed358ec8cdb2d0bd7d
14. 0xf01d425f0c05ac504062d9b471f06fbf10480b3526efb1ee77bb71aebd05f0de
15. 0x67c99d356de30f9cfab88af48fbaa18909ef230dd09947e84da060bc03aca929
16. 0x1068659ec8f2bcf26e4ad39786557a8c45d60e5ebba4fce2fb9962b2c9c59920
17. 0xf9973981f80219d4f00fa9186b40a8144accc0c9875572fb79eaea312a21a187
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af