Evidence row 2228499

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://baltikum.halowerk.com/v1/lt-grassland-share"
    ]
  ],
  "name": "HALOWERK Baltic 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": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "6pXwvPgqduMSx33GP8jiVCanpUhZZiPPyG784mNJ7q1Z",
        "scheme": "exact"
      }
    ],
    "description": "Share of ESA WorldCover 2021 pixels classified as grassland. The coordinate is validated against the Natural Earth boundary for Lithuania; results outside it are rejected before payment.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "latitude": 54.6872,
              "longitude": 25.2797
            },
            "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": "2026-11-02T16:59:51.893Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T16:59:51.628Z"
    },
    "resource": "https://baltikum.halowerk.com/v1/lt-grassland-share",
    "serviceName": "HALOWERK Baltic Land",
    "tags": [
      "land",
      "europe",
      "country",
      "lt",
      "grassland-share"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Share of ESA WorldCover 2021 pixels classified as grassland. The coordinate is validated against the Natural Earth boundary for Lithuania; results outside it are rejected before payment."
}

What the leaf hashes

{"body":"6fe271d71f5d9f959cfc5acfda25a5db2f15fb6f7f5c3487dadeb16c3017d99a","id":2228499,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793647422827112,"prev":null,"subject":"x402_bazaar:https://baltikum.halowerk.com/v1/lt-grassland-share","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. 0x92016008666080b8a34508128742018944353e11c1730fd8c1622627023a2227
2. 0x15785c8b7d50054d3fc627e2c9a897785a1b4430aeb81eaf330b0f1db659a18a
3. 0xe3aed1acdf4bd09f7fe307d91eff9d44aac8209a93884ba3a5e44a0e6cdd8bb4
4. 0x4b63e64903ff7acec50f9a463cc937b19677408889887102a473ddac6bfc699f
5. 0xb40c63046ff77459ea71954a9f2a2c6f6a8e28af7ca59858b07cc19e5b48367d
6. 0x559e15e8ab011d7ee37faeb1b913010b8c10352a65cc8e7a6f14ed7dc2159537
7. 0xf70834953f99eb54a7176f2ccb226cfa6d02a8468a838375112884b583efaf67
8. 0xea3e567fc214648f28a0303dd1820787a46afb204b29801ec3cbd67e8c1a1c7d
9. 0x9a9298b98b5312316ce4c7c614a6607ca281409779270300371dd38d9c8fddea
10. 0x8cc48713645f155a0a0c508a9e54c2f25ce8d546f3f24fc662664a9cd13cafaa
11. 0x84cdaa6e50db6f63b9e9f2a73d5ae2cb49ddcff4f09202fc9b1cdac86763e72f
12. 0xd756a44b3038ff0c0524eec8e134fb5ffbe1464a42757b4f12e15355e5ab2c3f
13. 0x680e2eb544f0b0d7118b76ffef0a533f49c97860e3c70eaa1d07167760b4968c
14. 0x3f15e4f2fd3ab4091e7284edf8bfed23163b8ef6b0c8fdbd458a498a9bb35a32
15. 0x5d92631d189bd0292c27a05f85a5ec38ec5f4197dfe4660eb991dc6a511e25a6
16. 0x5e23ec5954c11a4530aab8c635a72b12bcfeb6fcb03c6cb1a990cc1743424543
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af