Evidence row 1809908

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://kette.halowerk.com/evm/read"
    ]
  ],
  "name": "HALOWERK kettenwerk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "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": "Provides twelve allowlisted EVM read methods. Validates addresses, block tags, topics and byte bounds; logs cover at most 128 explicit blocks and one contract. eth_call is capped at 500000 gas. No wallet, signatures, transaction sends or node URLs supplied by the caller.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "base",
              "method": "eth_chainId",
              "params": []
            },
            "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": {
                      "default": "base",
                      "enum": [
                        "base",
                        "ethereum",
                        "arbitrum"
                      ]
                    },
                    "method": {
                      "enum": [
                        "eth_chainId",
                        "eth_blockNumber",
                        "eth_gasPrice",
                        "eth_getBalance",
                        "eth_getTransactionCount",
                        "eth_getCode",
                        "eth_getStorageAt",
                        "eth_getBlockByNumber",
                        "eth_getTransactionByHash",
                        "eth_getTransactionReceipt",
                        "eth_call",
                        "eth_getLogs"
                      ]
                    },
                    "params": {
                      "default": [],
                      "maxItems": 3,
                      "type": "array"
                    }
                  },
                  "required": [
                    "method"
                  ],
                  "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": "2026-11-01T15:12:14.849Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T15:12:14.425Z"
    },
    "resource": "https://kette.halowerk.com/evm/read",
    "serviceName": "HALOWERK kettenwerk",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Provides twelve allowlisted EVM read methods. Validates addresses, block tags, topics and byte bounds; logs cover at most 128 explicit blocks and one contract. eth_call is capped at 500000 gas. No wallet, signatures, transaction sends or node URLs supplied by the caller."
}

What the leaf hashes

{"body":"8dad31f4b137064e7aeb21abcc38d70915adc0e2091ac0821f5920f1511e1ab2","id":1809908,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793560274858731,"prev":null,"subject":"x402_bazaar:https://kette.halowerk.com/evm/read","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xa7770180861ae0f10e118ef74290ee78b57e719f8642a8ca0c73c121652ff92f
2. 0x3f8efd3db1c36758f13d6fd177083b92bd7fd6595397a2242e5b759fdbafcb77
3. 0xa600741a75e384cab4d4972e9dd6a87ea2b41cb15fa8766d0933aa7122fd467e
4. 0x2b0064179b3a38e3c12cde9ecfa3559c2deef1aa6292817d0544494820237896
5. 0x1dbeaa210f952fe9c36c9ccaa1509f6f7e0901e9b421c40e4426558a1a03eaba
6. 0xa36237f0e37d0fe6d74bd37d6090a83608956bf65470077ef0603502c673c6bd
7. 0x42574d064b0fb5eb6ed5b1dc95caae3cb980e89171b6f8503da49871ebd58bf4
8. 0x4fbeb21144d772ff253653733f267a85485ea3ce57637d06fcac599394b95ae6
9. 0x57f764f6c7af0642edd43269329f024d2cc77197844a4d9facbdb823a43f6fc9
10. 0xedd69097e4dd8df81df3b223ab2fe377595f6b96488c21dbc9aa218dccf92368
11. 0xe460e2458b6f8dd593b34df4051783263ae38f7e4168ff916d22f0746ba600e4
12. 0xd209e5d1518fb161264f3e389a6c577acbd29192c17c80c9ec8ed9b83503cb0a
13. 0xefff7a00a0f698242a4fbb4741471facf8a07aac283a6d0c44a87bf4a988152e
14. 0x110c6c21e77668de1becd70345e909cedabda185c5eca2a47425fab10ef478be
15. 0xc88d127644e311620e3bcad9c976ab2c79963799278768230b1762de9b7cd724
16. 0x8339aa87501c4d4f8b38a13e480a7c563957e09fb5711bed7cf189d6787f960d
17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90