Evidence row 548730

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.lookproof.dev/v1/mail/mta-sts"
    ]
  ],
  "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": "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": "2026-10-27T12:40:15.686Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T12:40:15.459Z"
    },
    "resource": "https://api.lookproof.dev/v1/mail/mta-sts",
    "serviceName": "Lookproof",
    "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":"0b6bacc7c4bbdba6b176295af9f306c84a1e3e667694aa821004d8f0eee0c000","id":548730,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133321531700,"prev":null,"subject":"x402_bazaar:https://api.lookproof.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 2026-10-27 (273461 rows).

1. 0x25fc13a7da6d5a3241094eda826f5f009dbbae30334db349834abfdc367df6c2
2. 0x72f9bd5de17cb25472af2fff937b36e6916672f0a19a9ea3f29af57cbe49fab7
3. 0xe4d5995d92e13ca746005b7596d89c8711b1de211176a614ff478b9f90772033
4. 0xec6fc51caa1e7e20790358a014e7aaec34c369ee35949fc8b3a0cffb7582d23a
5. 0x39f5def509efa89bfd0a0e1458594279b6879f70ef2e53217ae32b5f0d26bdbf
6. 0x3bf4f764b9ed9cef0d37634874ba9fc309c5495b23d01ba13f52dcf2c29ae031
7. 0x6c5d3264645cf18b4fda339342267897b91a79875a34113e5d5154afba0af8fb
8. 0x4a5358559c081164f0b7f9bf5f4e50c2bf8ab88fba1b5647f70b261c466507ba
9. 0x573b78390978cfad6f776afa7e56c307de67e1663da8c72f36b9c136a7f5836e
10. 0xd2b46af5d576579f388a5f8e3d4ee40ea1d1a94cdd99f416479167bfe3be5f5a
11. 0xb74d1e1417c2953e5b3c2385126d77946e4effdefe4584289b6f7f7b0a99d30c
12. 0x442ef05dbe7931d22c60e72d459fdb2874e7d0eab89c16f41f0a865bf55610d6
13. 0x1a710d4f8e6092d584b581d8599ff9183c0008f9275cf0601c925b43b4e84ae6
14. 0xe8ee6f6ed50253c5ee2d1aa85a4b1a38ce94bca7f3b72fd1850f496152dbe285
15. 0xa383a1cfe9b3f6af67eb4c7642564b9424d46d7fca90e7ba175d549f8b67dd0c
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4