Evidence row 555638

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://how.is/v1/domain/blacklist"
    ]
  ],
  "name": "how.is/v1/domain/blacklist",
  "owner_address": "0xa76a0e93c5af3fd43521300b0a58ef5f70fc44f6",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xa76a0E93C5af3fd43521300B0a58eF5F70fC44F6",
        "scheme": "exact"
      }
    ],
    "description": "Whether the addresses behind a domain appear on spam and abuse blocklists.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "domain": "github.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "_shape": "data.data.ipResults[]: target, isListed, listingCount, totalChecked."
              },
              "receipt": {
                "charge_usd": 0.005,
                "rail": "x402",
                "settlement_tx": "0x…",
                "tool": "blacklist"
              },
              "result": "Blacklist status for the requested subject"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "domain": {
                      "description": "A bare domain name, e.g. example.com",
                      "maxLength": 253,
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain"
                  ],
                  "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": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T19:58:59.604Z",
    "quality": {
      "lastCalledAt": "2026-10-27T19:58:59.604Z"
    },
    "resource": "https://how.is/v1/domain/blacklist",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Whether the addresses behind a domain appear on spam and abuse blocklists."
}

What the leaf hashes

{"body":"31b2a3c8dcc7a4d2c530b0a0a40048001c9de6dcb735811e365eaf0eeca7d51a","id":555638,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133800996060,"prev":null,"subject":"x402_bazaar:https://how.is/v1/domain/blacklist","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xe7b42ed2af0b6c0b8ba5052a2868996e94ebf6a75c7a10d7eeafbb8f4c513fb3
2. 0xbe5ed9dbd93ae5be263d66cf76f48842e19ee1014b46195f648d32f46693afd7
3. 0xd82fc9ba804ee5da85f212d1c094787ce22329f26ed52eb19a573adc08e15f2f
4. 0xd4dbfc78b53ce95ce150b93e5edfcfdb2b38c8b5e0819194d33528411fc726a5
5. 0xebf057a6bf3a96783454d75847a0c8b511a3191afcd318efce2c50144a36c833
6. 0x2339cdff0be6b3e09360a0841645f5ae10970c68e103511dc55fe5cca1e9c4ee
7. 0xc8744374d8f54e6ee3a035106a7afaa0ffa59489c531f05387a453694978d27e
8. 0x1a6735cd8b8d3c150ea6dd8dece5fb79d341fa2d818973d7ad05d2b6b5d72e4b
9. 0x0c929b2b80e2f67e95df5a364d8bbe2bd26441296c231574867f976859f33f79
10. 0xaec5d3351e5604d4e32362929edfac95737668bebf3cee0eb46499b94228ccab
11. 0x71c8691e7266a630f55422792837d4ddf268c83444f68d63c646c42b70b5ded5
12. 0x4f9b484326a98846a2342f967ce1e64ee9fa304288bb4355ab666475eb77b61c
13. 0xab6eb305329046d5ccb835dd8ca955f794e3ca110379a94dbdc780d016448561
14. 0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4