Evidence row 2228445

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://ostland.halowerk.com/v1/hu-landcover-class"
    ]
  ],
  "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": "Dominant ESA WorldCover 2021 class in the analysis area. The coordinate is validated against the Natural Earth boundary for Hungary; results outside it are rejected before payment.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "latitude": 47.4979,
              "longitude": 19.0402
            },
            "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": "2026-11-02T17:05:43.867Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T17:05:43.633Z"
    },
    "resource": "https://ostland.halowerk.com/v1/hu-landcover-class",
    "serviceName": "HALOWERK Eastern Land",
    "tags": [
      "land",
      "europe",
      "country",
      "hu",
      "landcover-class"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Dominant ESA WorldCover 2021 class in the analysis area. The coordinate is validated against the Natural Earth boundary for Hungary; results outside it are rejected before payment."
}

What the leaf hashes

{"body":"2883cfb629f26f90df797a76a8b718ccef026467cb057f8cd109f9f9392b5305","id":2228445,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793647422639932,"prev":null,"subject":"x402_bazaar:https://ostland.halowerk.com/v1/hu-landcover-class","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. 0xcaaf60fe66612fa147d495f1def5f5131873d62464ba29919c2b1efadf908afd
2. 0xb7b5018614fc28ef532abd19e05a36e0cb54804ba215702ef6b0529da690f6d3
3. 0x597069081fa938978d990757cd3c0668f827652010e9e9ccd3b6e51473b76beb
4. 0x52fa197abd97a34bf1b7e66424d8cf48b23d6c2c90f48b1720ec792011583705
5. 0xf4b75473cf76ea3fa18a674ef988fee095fa1c862079c9dbc60207ece92355fb
6. 0x09906d053fd28253c40324cb1ed65e6f448ddc1fb604fdf6063f079471eda638
7. 0x77978acde74b1e3a54f160bf65d3243b04feaf940e3b13f7606def3c28395ded
8. 0x0af7829e5ba47731142b6c95bad60e146bd3637f658d88f648afcd2403f1d44f
9. 0xd6731d3b55f44677a39197bc3147b207193d8432e941ca1bb3ac27c08876404b
10. 0xceae8f068ab0a7240d6fd75ae88eca06db45d836050201d69d633790c992dda3
11. 0xda321c352d57d3c39914ad0ea3b03e0fb6dfda8c5c7155f45610ad22165bf1f6
12. 0x89421afe101858fcb12a0b85122bd84839dc9c5772685837be305f90d15dfb5d
13. 0x0c0f15fae9c65ebf110db9a83b92aa128ce387de0137888a7863d81f3567dc04
14. 0xdfd116d725e076b0e3bd74ff5682dfe6834735313673c580d2e58972567174a0
15. 0x5b456020389d8e0ef67f16a492c600b5b88189e59398bba308734db7e873e7e4
16. 0x37d31d28d0bd3743650d57e9fbf999efa4592cac831267f83aa125335b35a16b
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af