Evidence row 68188

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.probekit.dev/v1/mail/mta-sts"
    ]
  ],
  "name": "ProbeKit",
  "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": "Check a domain's MTA-STS setup (RFC 8461): the _mta-sts record, the HTTPS policy file with certificate check and no redirects, mode, max_age and whether every MX host is covered, plus the TLS-RPT record (RFC 8460). Use when an agent must tell whether inbound mail is protected against TLS downgrade, or why senders report MTA-STS failures for a domain.",
    "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": "2026-10-25T18:46:56.685Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-25T18:46:56.442Z"
    },
    "resource": "https://api.probekit.dev/v1/mail/mta-sts",
    "serviceName": "ProbeKit",
    "tags": [
      "email",
      "dns",
      "deliverability",
      "mta-sts",
      "tls"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Check a domain's MTA-STS setup (RFC 8461): the _mta-sts record, the HTTPS policy file with certificate check and no redirects, mode, max_age and whether every MX host is covered, plus the TLS-RPT record (RFC 8460). Use when an agent must tell whether inbound mail is protected against TLS downgrade, or why senders report MTA-STS failures for a domain."
}

What the leaf hashes

{"body":"81be0ae64e4e930947f2dd359dfc0f21a54b0d804705ac1bbbd7e73e229fad44","id":68188,"kind":"listing","method":"baseline/1","observed_us":1793025466275268,"prev":null,"subject":"x402_bazaar:https://api.probekit.dev/v1/mail/mta-sts","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. 0xc569b2c9ccc112d528b6edd3524abfc58439d6c944454ecd6a838c5a51e234ce
2. 0x07e43630f238f51211400fa79141f25bf4acccb5201e99ec82b20b00c9520369
3. 0xb84631a84d10bb4b435c1270a3ea24073e19bc93e4d7793844e34e338219e5d4
4. 0xb5d9369457dff719f5386b04fa9800dc50946efd26872df58516ea144d3da245
5. 0xd49cc76a75f3ff48c76a19c3857ee8f5ad0f355d5b362c5f30f25c2479edf3a6
6. 0x1535e4af541c323528bc9ae3999d365d184babe59249b5476e85505994348d5c
7. 0x21b093646aef382c323afbcf09c7581b822f78092ca9c9f2ec150e4f07a07424
8. 0x4d2dc27cb414ac2add9358bbe2a2872a4bef57860e87d61f34770e25c49b369c
9. 0x8a6ff25e215f3f57bb93d8e11f9934472c8cb841360fc66ab4f6a19147b064b7
10. 0x898f645f86c84a3076cc9b37a95ad7e2490fbce031f5f2e0257dd07699f9e829
11. 0xd2a07d39f43cc6c0a549d9e0f8d8244992bef3f66efa78aea10852590e0fc7dd
12. 0x4d1a020de7fc0aa076daeb62ebb904d51ac6c607b605eb63a7855f34d7b69f1b
13. 0x641fba1f23ec69d96721e34ace1926954d835b9614cb5eae215a069c056399b8
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae