Evidence row 126211

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.halowerk.com/settlement/verify"
    ]
  ],
  "name": "HALOWERK x402werk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "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": "Reads the receipt of a transaction on Ethereum, Base, Base Sepolia, OP Mainnet, Arbitrum One, Polygon PoS or Avalanche C-Chain and compares it with what you expected to be paid. The comparison runs against the ERC-20 transfer events in the receipt, not against the transaction recipient, because in a token payment the transaction recipient is the token contract and never the seller. Returns every transfer event with sender, recipient, token, raw amount and human amount computed with that token de",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "arb",
              "expected": {
                "amount_units": "1000000",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "pay_to": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
              },
              "tx_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "chain": {
                      "description": "Chain of the transaction, as CAIP-2 (\"eip155:8453\"), as a short name (\"base\") or as the chain id (\"8453\").",
                      "enum": [
                        "arb",
                        "arbitrum",
                        "arbitrum-one",
                        "avalanche",
                        "avax",
                        "base",
                        "base-mainnet",
                        "base-sepolia",
                        "basesepolia",
                        "eip155:1",
                        "eip155:10",
                        "eip155:137",
                        "eip155:42161",
                        "eip155:43114",
                        "eip155:8453",
                        "eip155:84532",
                        "eth",
                        "ethereum",
                        "ethereum-mainnet",
                        "mainnet",
                        "matic",
                        "op",
                        "op-mainnet",
                        "optimism",
                        "polygon"
                      ],
                      "type": "string"
                    },
                    "expected": {
                      "additionalProperties": false,
                      "properties": {
                        "amount_units": {
                          "description": "Expected amount as an integer in the smallest unit of the token. Omit to skip the amount comparison; amount_matches is then null.",
                          "pattern": "^[0-9]{1,78}$",
                          "type": "string"
                        },
                        "asset": {
                          "description": "Expected token contract address, or \"native\" for the chain coin. Omit to accept any token; asset_matches is then null.",
                          "type": "string"
                        },
                        "pay_to": {
                          "description": "Address that was supposed to receive the payment — the seller, not the token contract.",
                          "pattern": "^0x[0-9a-fA-F]{40}$",
                          "type": "string"
                        }
                      },
                      "required": [
                        "pay_to"
                      ],
                      "type": "object"
                    },
                    "tx_hash": {
                      "description": "Hash of the settlement transaction.",
                      "pattern": "^0x[0-9a-fA-F]{64}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "chain",
                    "tx_hash",
                    "expected"
                  ],
                  "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": "2026-10-20T21:27:27.302Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T21:27:26.749Z"
    },
    "resource": "https://x402.halowerk.com/settlement/verify",
    "serviceName": "HALOWERK x402werk",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Reads the receipt of a transaction on Ethereum, Base, Base Sepolia, OP Mainnet, Arbitrum One, Polygon PoS or Avalanche C-Chain and compares it with what you expected to be paid. The comparison runs against the ERC-20 transfer events in the receipt, not against the transaction recipient, because in a token payment the transaction recipient is the token contract and never the seller. Returns every transfer event with sender, recipient, token, raw amount and human amount computed with that token de"
}

What the leaf hashes

{"body":"ff742499825559132e4c692d7d9e0a53646ce2458994590d6c34c9d4b0c205e7","id":126211,"kind":"listing","method":"baseline/1","observed_us":1793025627383068,"prev":null,"subject":"x402_bazaar:https://x402.halowerk.com/settlement/verify","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. 0xc9d488ad1248ba74665157f4b2b3a7714f94f3a04fbac91707d7b3fd10c3d6c9
2. 0x839faae36daeac97d71491b1c476b12dfee3bfbadca48d7ba9431e137d155b8e
3. 0x402a0e823036fc73015f32b65121bf72e45c2a64216767c106c9d6dec2fdbd90
4. 0x44cee4e2255a9820f9859a3bf52259a420418d307b2f3e2ee49baaf2b7d642a2
5. 0x564c9fff0818e893595c2548c15f893edc396a2d427e245a83e567b7d77ddcc2
6. 0x39fd2c2112c01986d564c50ab161c76ca5115ec9b50345f0ec20ac9abae116d7
7. 0x6d6cc408d7d3d91da513d4d882ceed8c82f61632dc6614f5659e43ccb2777f03
8. 0xcbf246dd29448c433d63e0879498fd6345d6abdb90ff389ab58a1f75a6ae58cf
9. 0x7defb96cd7c4f1f4cdc1d33dbed6775edfd6f1d3f3dcd10f8601f08a2c66e41b
10. 0xff8a61dc0d7a2ad53748c909044ecbbf5355b001e1be01dd836899cb83511970
11. 0x60eabf7e1a3db5892c30621c19c096fd56eb4ad1f2ace810471d00503c868d2b
12. 0x02a11c0460d1a42b6246e1c715f0c3098d82c39154a56e918e2c22b56ca2c978
13. 0x985acd37cc044d5aa6ad959194da8e91c81045df83517891ed92f1763a9ab825
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae