Evidence row 2253729

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://commerce-baltic.halowerk.com/v1/pl/vat-b2c-place-supply"
    ]
  ],
  "name": "HALOWERK EU Commerce Baltic",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "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": "Determine whether destination-country VAT is the default for an intra-EU B2C sale. This service is distinct for Poland: it returns the national authority, official legislation portal, language set and jurisdiction-specific implementation review conditions.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "customer_country": "PL",
              "customer_type": "consumer",
              "effective_date": "2026-09-04",
              "product_category": "general_consumer_goods",
              "product_value_eur": 49.9,
              "seller_country": "PL",
              "transaction_type": "goods"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {},
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "agreed_delivery_days": {
                      "default": 30,
                      "maximum": 3650,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "annual_cross_border_b2c_eur": {
                      "default": 0,
                      "maximum": 100000000000,
                      "minimum": 0,
                      "type": "number"
                    },
                    "contains_battery": {
                      "default": false,
                      "type": "boolean"
                    },
                    "customer_country": {
                      "const": "PL",
                      "type": "string"
                    },
                    "customer_type": {
                      "default": "consumer",
                      "enum": [
                        "consumer",
                        "business",
                        "unknown"
                      ],
                      "type": "string"
                    },
                    "declared_fields": {
                      "default": [],
                      "items": {
                        "maxLength": 100,
                        "minLength": 1,
                        "type": "string"
                      },
                      "maxItems": 200,
                      "type": "array",
                      "uniqueItems": true
                    },
                    "effective_date": {
                      "description": "Date on which the commercial decision is evaluated (YYYY-MM-DD).",
                      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
                      "type": "string"
                    },
                    "flags": {
                      "additionalProperties": {
                        "type": "boolean"
                      },
                      "default": {},
                      "maxProperties": 100,
                      "type": "object"
                    },
                    "imported_from_outside_eu": {
                      "default": false,
                      "type": "boolean"
                    },
                    "is_digital_element": {
                      "default": false,
                      "type": "boolean"
                    },
                    "is_electrical": {
                      "default": false,
                      "type": "boolean"
                    },
                    "is_microenterprise": {
                      "default": false,
                      "type": "boolean"
                    },
                    "is_platform": {
                      "default": false,
                      "type": "boolean"
                    },
                    "product_category": {
                      "default": "general_consumer_goods",
                      "maxLength": 120,
                      "minLength": 2,
                      "type": "string"
                    },
                    "product_value_eur": {
                      "default": 49.9,
                      "maximum": 100000000,
                      "minimum": 0,
                      "type": "number"
                    },
                    "sales_channel": {
                      "default": "own_shop",
                      "enum": [
                        "own_shop",
                        "marketplace",
                        "social_commerce",
                        "other"
                      ],
                      "type": "string"
                    },
                    "seller_country": {
                      "enum": [
                        "AT",
                        "BE",
                        "BG",
                        "HR",
                        "CY",
                        "CZ",
                        "DK",
                        "EE",
                        "FI",
                        "FR",
                        "DE",
                        "GR",
                        "HU",
                        "IE",
                        "IT",
                        "LV",
                        "LT",
                        "LU",
                        "MT",
                        "NL",
                        "PL",
                        "PT",
                        "RO",
                        "SK",
                        "SI",
                        "ES",
                        "SE"
                      ],
                      "type": "string"
                    },
                    "transaction_type": {
                      "default": "goods",
                      "enum": [
                        "goods",
                        "digital_content",
                        "digital_service",
                        "service",
                        "marketplace_offer"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "effective_date",
                    "seller_country",
                    "customer_country"
                  ],
                  "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"
            },
            "output": {
              "properties": {
                "example": {},
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "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": "2026-11-02T17:30:44.648Z",
    "quality": {
      "lastCalledAt": "2026-11-02T17:30:44.648Z"
    },
    "resource": "https://commerce-baltic.halowerk.com/v1/pl/vat-b2c-place-supply",
    "serviceName": "HALOWERK EU Commerce Baltic",
    "tags": [
      "eu-commerce",
      "country-rule",
      "vat",
      "pl",
      "vat-b2c-place-supply"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Determine whether destination-country VAT is the default for an intra-EU B2C sale. This service is distinct for Poland: it returns the national authority, official legislation portal, language set and jurisdiction-specific implementation review conditions."
}

What the leaf hashes

{"body":"0543491961d6b6fec6939d125c22b65acdb4c970630aef00fa1051054563e8dd","id":2253729,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793647855888525,"prev":null,"subject":"x402_bazaar:https://commerce-baltic.halowerk.com/v1/pl/vat-b2c-place-supply","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. 0x9a9ebfda25c4fdc4179904f7f7806e52bb5b6dbf121e0a77f6555046e36e425b
2. 0xeaf0a447a466fc50501441f36c582644c9d1e68296d403496574c2afcad89412
3. 0xf63f042b7581fce3b33bf945a5218cf04cc7a36947653803942596040d39ca5a
4. 0x41f4d6587a7a70bcde08503422a41d6b7013c86fe6b7c11c40ffda1b64d2d281
5. 0x5afdb0d2bde2464c33b42ad4db9fca980ee8a50673076fc6259adba5a6dbf130
6. 0x138e68821322aba583e8c2ae4321fa958c3d944381781f82574166934b18dde8
7. 0x2bc27f591cc59b339489a65d95c8bb235582720cf97a9cf1c46bb3fd930ae7c7
8. 0x6e393c0365bd3121454321fc0784cc6b4bfd81f4f32eabf02b284d13f4d4f266
9. 0xc0f2f3280bac8c254509382decae1459f7a946c565d525c961a56f9d4db625bd
10. 0xf9f99eb845774204091da04c2dbcfd7015613134b3e6ab73e7220ec4c64c9ab5
11. 0xa44c4a36b8d86fa938e0f579106116effb29fcc0a86614f8c076cc4254c220f6
12. 0xbea97ef87badb4a269a9a806e24faae33a7711fec91ccdaba808349c0475fe9f
13. 0x96eeba0e0bb8dfa0ca66d907340b43514f88c7ff36bd9a1299bad5cc5219d2d0
14. 0xc5de092f33d9a5a2d3076d47423feb11b0630cdc080163babf6390bb04568ce5
15. 0x9c91ecb84461aa4cb2a891252746755d862a88fe9bad822700cdb99eaab2edca
16. 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af