Evidence row 126209

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.halowerk.com/channel/audit"
    ]
  ],
  "name": "HALOWERK x402werk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "6000",
        "asset": "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",
        "scheme": "exact"
      }
    ],
    "description": "Checks vouchers of a payment channel by computation only - nothing is ever claimed, redeemed or refunded. Signatures are verified cryptographically against the address each voucher claims to be signed by, in EIP-712 form when the typed data is supplied, otherwise as a plain message signature. Double spending is the expensive case and is checked in full: every voucher id occurring more than once is reported with all its occurrences and whether the duplicates agree on the amount. Sums are added up",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "vouchers": [
                {
                  "amount": "1000000",
                  "id": "beispiel",
                  "signed_by": "beispiel"
                }
              ]
            },
            "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": {
                    "chain": {
                      "description": "Optional chain, needed only to read the on-chain state, as CAIP-2 such as eip155:8453.",
                      "type": "string"
                    },
                    "channel_contract": {
                      "description": "Optional channel contract address.",
                      "type": "string"
                    },
                    "channel_id": {
                      "description": "Optional channel identifier as bytes32.",
                      "type": "string"
                    },
                    "deposited": {
                      "description": "Optional deposit in the smallest unit, used when the contract cannot be read.",
                      "type": "string"
                    },
                    "vouchers": {
                      "description": "The vouchers to audit.",
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "amount": {
                            "description": "Amount in the smallest unit, as a decimal string.",
                            "type": "string"
                          },
                          "claimed": {
                            "description": "Whether the caller considers this voucher already claimed.",
                            "type": "boolean"
                          },
                          "expiry": {
                            "description": "Optional expiry as a unix timestamp in seconds.",
                            "type": "string"
                          },
                          "id": {
                            "description": "Voucher identifier.",
                            "type": "string"
                          },
                          "message": {
                            "description": "The signed message, for a plain message signature.",
                            "type": "string"
                          },
                          "signature": {
                            "description": "The signature, 0x-prefixed.",
                            "type": "string"
                          },
                          "signed_by": {
                            "description": "Address that is claimed to have signed.",
                            "type": "string"
                          },
                          "typed_data": {
                            "description": "EIP-712 payload with domain, types, primaryType and message.",
                            "type": "object"
                          }
                        },
                        "required": [
                          "id",
                          "amount"
                        ],
                        "type": "object"
                      },
                      "maxItems": 200,
                      "minItems": 1,
                      "type": "array"
                    }
                  },
                  "required": [
                    "vouchers"
                  ],
                  "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": "2026-10-19T06:30:37.974Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-19T06:30:37.461Z"
    },
    "resource": "https://x402.halowerk.com/channel/audit",
    "serviceName": "HALOWERK x402werk",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Checks vouchers of a payment channel by computation only - nothing is ever claimed, redeemed or refunded. Signatures are verified cryptographically against the address each voucher claims to be signed by, in EIP-712 form when the typed data is supplied, otherwise as a plain message signature. Double spending is the expensive case and is checked in full: every voucher id occurring more than once is reported with all its occurrences and whether the duplicates agree on the amount. Sums are added up"
}

What the leaf hashes

{"body":"39115c73bd1d1f115e1dd4a9898fb71832a46461018b8a1d91e25962663a6a2d","id":126209,"kind":"listing","method":"baseline/1","observed_us":1793025627380590,"prev":null,"subject":"x402_bazaar:https://x402.halowerk.com/channel/audit","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xede913ab6848e2f0c747776f075094159e40c7bd9b0a6ac74c9d79f76d0797df
2. 0x58c3e27dcb860903fa995f80dbac6d53e402693c75a04413ea74d49d01ff5e29
3. 0x29be8ecaa6f8ce9c81bf75cd8e9716dd6b9171f254e9b0a8b17fac87beb11508
4. 0x2a98b4fa559133d3e36509a341664834756ab1afd790b4c1b907dbea299acb48
5. 0xaceb0e63ec175bd8ba0878b56a097c7b5513c2fba1498e2129828cd610950fbd
6. 0x25001189bd96a2ee70f5dc21b61c4619e3551551dfed2121a8b5cc523570b699
7. 0xbfc74761880ef01eb93935e04160b9b35154a6e4d56da93d949c3aa39ce2a30d
8. 0xa8a28fc9d7ae2414ccb3476802ae7f6affb9a2f643f5db1d46d6f8a4b4237ea3
9. 0x4cc08aa0b103816b716dbfd4162913cdd08acd1ca88250db632eb0e3588b2612
10. 0x9eb304055a5a524056b573ca929d5e519ae84a141ec48926edcd8c247e89da60
11. 0x31325ab4dbdfc029b65672f927dfb6f0b046d1c4c19b63eb548ad58c295af08c
12. 0xe158f09cdbfb4f7be1bfd45fce3afcad32c2b3bb2fc2e181dadc193bbf194bfc
13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae