addrbookFor publishers
← The evidence ledger

Evidence row 127264

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://zoll.halowerk.com/v1/customs-value
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
f480e7a8440eadf55c2055d2146b56beb351cab84517a39bc053b73fe910cacb
Leaf
0x0b057c959bd6492e34830cdb2f32f0c4f9b42e0aeda1be13dea79ae73b12684c

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://zoll.halowerk.com/v1/customs-value"
    ]
  ],
  "name": "zoll.halowerk.com/v1/customs-value",
  "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": "Calculates customs value under the transaction-value method from disclosed additions and deductions. 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": {
              "additions": [
                {
                  "amount": 100,
                  "label": "freight to border"
                }
              ],
              "currency": "EUR",
              "deductions": [],
              "source": {
                "published_at": "2026-09-01T00:00:00Z",
                "title": "EU customs valuation",
                "url": "https://taxation-customs.ec.europa.eu/customs-4/calculation-customs-duties/customs-valuation_en"
              },
              "transaction_value": 1000
            },
            "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": {
                    "additions": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "amount": {
                            "description": "",
                            "maximum": 1000000000000,
                            "minimum": 0,
                            "type": "number"
                          },
                          "label": {
                            "description": "",
                            "maxLength": 512,
                            "minLength": 1,
                            "type": "string"
                          }
                        },
                        "required": [
                          "label",
                          "amount"
                        ],
                        "type": "object"
                      },
                      "maxItems": 100,
                      "type": "array"
                    },
                    "currency": {
                      "description": "",
                      "maxLength": 3,
                      "minLength": 3,
                      "type": "string"
                    },
                    "deductions": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "amount": {
                            "description": "",
                            "maximum": 1000000000000,
                            "minimum": 0,
                            "type": "number"
                          },
                          "label": {
                            "description": "",
                            "maxLength": 512,
                            "minLength": 1,
                            "type": "string"
                          }
                        },
                        "required": [
                          "label",
                          "amount"
                        ],
                        "type": "object"
                      },
                      "maxItems": 100,
                      "type": "array"
                    },
                    "source": {
                      "additionalProperties": false,
                      "properties": {
                        "published_at": {
                          "format": "date-time",
                          "type": "string"
                        },
                        "title": {
                          "description": "",
                          "maxLength": 300,
                          "minLength": 3,
                          "type": "string"
                        },
                        "url": {
                          "format": "uri",
                          "type": "string"
                        }
                      },
                      "required": [
                        "url",
                        "published_at",
                        "title"
                      ],
                      "type": "object"
                    },
                    "transaction_value": {
                      "description": "",
                      "maximum": 1000000000000,
                      "minimum": 0,
                      "type": "number"
                    }
                  },
                  "required": [
                    "transaction_value",
                    "additions",
                    "deductions",
                    "currency",
                    "source"
                  ],
                  "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": "2026-10-08T05:40:12.521Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T05:40:12.106Z"
    },
    "resource": "https://zoll.halowerk.com/v1/customs-value",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Calculates customs value under the transaction-value method from disclosed additions and deductions. 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":"f480e7a8440eadf55c2055d2146b56beb351cab84517a39bc053b73fe910cacb","id":127264,"kind":"listing","method":"baseline/1","observed_us":1793025637767586,"prev":null,"subject":"x402_bazaar:https://zoll.halowerk.com/v1/customs-value","subject_kind":"source_record"}

Proof

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

  1. 0x0b054a1c882899a695c38f7c8189471a1f3687c7306b2594847e69398a5c8084
  2. 0xc19152f2d23ec8bd16153adf1046c609bca271211b9c6e3f320a15dc74f6af81
  3. 0xa8b4ae591fac778377ca92137b5b61bd6673c5a58452be77d994abde20f080a2
  4. 0x913c6986e8c38cce0b49fcf4d53924e7928013c28af33a71102e4c597feeb7df
  5. 0x62a8d5f81fab734427fffcfe24d33e434f636e5b7970e14c0b393894cef16d82
  6. 0x27e6b73b3e6a9b5e38a900fa0d638378601c5f8932686584ecef140bc5d2a4bb
  7. 0xd670d59eb3edc2b4110e6ed1865c15e17079929dba024486b1af27589f3fd0a5
  8. 0x007eb0a0511f0ff75c06b808dd543d782354601eb60ad032c2f0923f0398d247
  9. 0x7e09408fcc0d9b90670693a070d6ec897d9a3cf600d3c8bce04013cec74d1903
  10. 0x96dc6bd64fe78dd85e63b2a795828d2feea188bc55943b4d6ab1449dca715971
  11. 0xb590404cb9438c769f672be0f0089b46b380374a2b3728911a35efd8d94b6a83
  12. 0x0295c7c2280f85143f6ea027ec5cab1cda783eeef5bca0accb9aea607c5aa3c2
  13. 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
  14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
  15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
  16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
  17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON