Evidence row 548732

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.lookproof.dev/v1/mail/dkim-discover"
    ]
  ],
  "name": "Lookproof",
  "owner_address": "0x5be2be9f95549a2d69951d24a2b3901d1df1bc05",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x5bE2bE9f95549A2D69951d24A2B3901D1df1Bc05",
        "scheme": "exact"
      }
    ],
    "description": "Try 27 common DKIM selectors (Google, Microsoft 365, Mailchimp, SendGrid, Mailgun, Zoho, Proton, Fastmail, Mailjet, Amazon SES and generic names) for a domain and validate every key found: type, size, revocation and testing flag. Use when an agent needs a domain's DKIM keys but does not know the selector. Finding none is a hint, not proof that DKIM is missing.",
    "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": "2026-10-27T12:40:11.574Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T12:40:11.346Z"
    },
    "resource": "https://api.lookproof.dev/v1/mail/dkim-discover",
    "serviceName": "Lookproof",
    "tags": [
      "email",
      "dns",
      "deliverability",
      "dkim",
      "selectors"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Try 27 common DKIM selectors (Google, Microsoft 365, Mailchimp, SendGrid, Mailgun, Zoho, Proton, Fastmail, Mailjet, Amazon SES and generic names) for a domain and validate every key found: type, size, revocation and testing flag. Use when an agent needs a domain's DKIM keys but does not know the selector. Finding none is a hint, not proof that DKIM is missing."
}

What the leaf hashes

{"body":"21e6c212afd9c614b0dbe7b122c879c149183f86c681666c4a206a9eb9e0c598","id":548732,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133321535738,"prev":null,"subject":"x402_bazaar:https://api.lookproof.dev/v1/mail/dkim-discover","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. 0x371b9e8943a1907e05b6f1a9e226b32796e814b0300e1106c21339e63e797001
2. 0xc2eeda913d4070d79b0ec9afc8c3bbb81bac5797e628e53a92b89a221eebbad1
3. 0xb1fffe0ce47851f8697a3e89ac062ece71e834ae6481ca3586508f7c47de1608
4. 0x6b97ab5a5aca4267c0484560207f495ab27e5eef5416913366f5caea8027f66b
5. 0x57491d2ebad8941dc22db9411cef4828541d9115ddad2984dce08419efd9941e
6. 0xf33f2d9756afdb0f025e72ad395bdec14a00ea7874bde66ed59ea24ffbf15276
7. 0x5d80adf54527fef6b9d53c6600243d7cbd314df69c85c5df103f8cf0b99c8061
8. 0x7441fa65f28f0c882f2d0775e781d354477d10622c1b26b423127f07bba1716c
9. 0xd720f781897184ad0d3ada7006e8f740d3c2d3b50b88d20c2c37c9b0c7b7d232
10. 0xa45c25d873acc747b6ae32fd0f6c4a6f18ce5162624d5d19a779a0e5df9cb0d3
11. 0x160b9e0a5f6c26ccb98c1f74a04e70c445fda00b5550757fe51e4055a32c3e7f
12. 0xdb9db1a3e6d5dbf0cebe03506aac88a6794bcc4c262bb265cd126434710b66f9
13. 0x5a6a2d80130a2a2e783e8f8096057d594b53c7bc148344100f2c40afa809745f
14. 0x42784d9809d120654630ee1b254a1dd90a2bbd3024aa180f1a59bbf53e9316e4
15. 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4