Evidence row 548726

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.lookproof.dev/v1/mail/spf"
    ]
  ],
  "name": "Lookproof",
  "owner_address": "0x5be2be9f95549a2d69951d24a2b3901d1df1bc05",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x5bE2bE9f95549A2D69951d24A2B3901D1df1Bc05",
        "scheme": "exact"
      }
    ],
    "description": "Parse and evaluate a domain's SPF record: the include and redirect tree, qualifiers and the RFC 7208 limit of ten DNS lookups, with coded findings. Use when an agent must tell whether SPF is valid, why mail from a service fails SPF, or whether one more include would exceed the lookup limit.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "domain": "example.com"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "domain": {
                      "examples": [
                        "example.com"
                      ],
                      "maxLength": 1024,
                      "minLength": 1,
                      "title": "Domain",
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain"
                  ],
                  "title": "DomainInput",
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T12:40:24.603Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T12:40:24.381Z"
    },
    "resource": "https://api.lookproof.dev/v1/mail/spf",
    "serviceName": "Lookproof",
    "tags": [
      "email",
      "dns",
      "deliverability",
      "spf"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Parse and evaluate a domain's SPF record: the include and redirect tree, qualifiers and the RFC 7208 limit of ten DNS lookups, with coded findings. Use when an agent must tell whether SPF is valid, why mail from a service fails SPF, or whether one more include would exceed the lookup limit."
}

What the leaf hashes

{"body":"8c732629db5bf0de6202ac1805cf891faff53e661c476e76b3736bb3ce39a2a3","id":548726,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133321521961,"prev":null,"subject":"x402_bazaar:https://api.lookproof.dev/v1/mail/spf","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. 0xc6f81680b2e86cd8d6c6fad981f7785d57257bba1436bc923d8223541f0289bc
2. 0x2c5c15813b2d365c53ad6728c145d593ff41890b1c0de188c90906799eff0225
3. 0xe1c2f547729a3602329357852ffc17fcedd23a9de8b74d9d27bd508133d9be96
4. 0x6881f70422fbe1cbd4bd9fc9ba98aedc76258dd66271aba9f56814cdf8aabee7
5. 0x532fe0857a2be536ddb579a3dbd2892e6659d898d99e8920449ca3b562b279bd
6. 0x24a1eb87c1fd227eb8b290c4684c7bd9ba76618950523fce00db5527583d96c3
7. 0x8ceddeb8d5a2d0e35a88969204b544218f223eab12a2dae17cc1138dbf35df86
8. 0xc904e82977de1d7dce99f19730f68ea01d0d83c35b5f20f1b200fed201b2e100
9. 0x4efb69ca8fb3c7c0ec3335daf4040642c7c175e8aa6ff7c4160bcd0b58d3bc6c
10. 0xc20f7ec58efb436e7d908576c23598ac53d11f79e0d662243545514d25222f1f
11. 0x2e6671416897991c56f68114e0090d4a5077431f4a8f11cc1941baa393e53442
12. 0x579274645af30f881c6ffa5eae0da4929a7645c54a24d58a51e98be31e70dd57
13. 0x72d49c3472216d5e76117068ea9a2a5f617bdb2ffda241f677ce8098a0219dfc
14. 0x077edf0f29e2a3aa19c876439830696b88f0236fd0b2a3c43c76f38cdd29bb2b
15. 0x73341bb09dd901ca47f26173883431496e3d98d6b0fb5b89f36218126d46c5d4
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4