Evidence row 1302

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.mailsecuritytools.com/v1/bulk-score"
    ],
    [
      "x402",
      "https://api.mailsecuritytools.com/v1/score"
    ],
    [
      "x402",
      "https://api.mailsecuritytools.com/v1/watch"
    ]
  ],
  "name": "api.mailsecuritytools.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "api.mailsecuritytools.com",
    "endpoints": [
      {
        "description": "Mail Security Tools API: Bulk email security score: up to 100 domains in one call. Scores up to 100 domains (comma/space separated) for SPF, DMARC, DKIM and MX from live DNS: per-domain score, grade and issues plus a summary (grade counts, missing DMARC/SPF, worst 10). Built for MSPs and agents checking a whole client or vendor list. Bad input 400 and widespread DNS failure 502, never charged.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example.com,example.org",
            "group": "query",
            "name": "domains",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.5",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Mail Security Tools",
        "tags": [
          "email",
          "email-security",
          "dmarc",
          "spf",
          "dkim"
        ],
        "url": "https://api.mailsecuritytools.com/v1/bulk-score"
      },
      {
        "description": "Grade a domain's email security: SPF, DMARC, DKIM and MX score. $0.01 USDC on Base per call. Returns a 0-100 score and A-F grade (SPF 30, DMARC 40, DKIM 25, MX 5) from live DNS, with findings and the top 3 fixes. Bad input 400, unknown domain 404, not charged. Don't use this for the exact records to publish; use /v1/fix-plan.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example.com",
            "group": "query",
            "name": "domain",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "4",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Mail Security Tools",
        "tags": [
          "email-security-score",
          "dmarc-check",
          "spf-check",
          "dkim-check",
          "domain-grade"
        ],
        "url": "https://api.mailsecuritytools.com/v1/score"
      },
      {
        "description": "Mail Security Tools API: Prepaid email setup watch: up to 25 domains for 30 days, webhook on change. Pay once, then each domain's SPF, DMARC, DKIM (common selectors), MX and score are re-checked about once a day for 30 days. When something changes or breaks you get an HMAC-signed JSON POST at your https webhook_url (event watch.changed, kind changed|broke, before/after). A watch.created POST is sent right away. Webhook only, no email. Free status at GET /v1/watch/{watch_id}. Bad input 400, never",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "items",
            "required": false,
            "type": "array"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://example.com/hooks/email-watch",
            "group": "body",
            "name": "webhook_url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.3",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Mail Security Tools",
        "tags": [
          "email",
          "email-security",
          "dmarc",
          "spf",
          "dkim"
        ],
        "url": "https://api.mailsecuritytools.com/v1/watch"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "api-mailsecuritytools-com",
    "integrationType": "",
    "isNew": false,
    "name": "api.mailsecuritytools.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.27",
      "currency": "USDC",
      "maxAmount": "0.5",
      "minAmount": "0.01"
    },
    "provider": "api.mailsecuritytools.com",
    "providerUrl": "",
    "serviceName": "Mail Security Tools",
    "tags": [
      "email",
      "email-security",
      "dmarc",
      "spf",
      "dkim",
      "email-security-score",
      "dmarc-check",
      "spf-check",
      "dkim-check",
      "domain-grade"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"3d47d8330a7e01bdd532697078aabfdeb98fd990e6fd7e5a98da44401acd73c9","id":1302,"kind":"listing","method":"baseline/1","observed_us":1793025253274048,"prev":null,"subject":"agentic_market:api-mailsecuritytools-com","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. 0x0dcdd7bcfc9644651b4844e33c9fd35c6a383761072ac40a879cc15a7be99888
2. 0x5a0dbec1f445fd6a5944896ad70b07a2a78f878c42406e9a4a70914afb08f26b
3. 0xd940d450dbf958182293f4d9ba9b01f6a180cbc18e56127cbc87c9c63c64153c
4. 0xe91fbfd31d3ce8571e79b3f7fec40dd3aff9eeb5b225571359941c6f3fe3867f
5. 0xfd601e28223b520db3610912c23f5634263bc5f8f66401279be61427d0a331b0
6. 0xc25792c07939f195e889bcff26a53cfec4eec70f86a1ba41c85e2e6d7b649be8
7. 0xbdd491dab6de81438ce0be1e99cc4a4f05816b99946c7337992a0528d05a883a
8. 0x2bf9e6c3e76457f7bf0940b3173f7892bf624688aa900d2b147fad3d403a058b
9. 0xb63e377fabcfa8dee525cf16e5292eb4bf823791d7d6cf20cfedff876058ba79
10. 0x6660c80902a0d0eb7e099a74231019f561e7aad745384cd90bc57b2aac09aef3
11. 0xce6314435eaa4c458576d2a1150a919748260a8a10f1eae96b7a8bc75ff32536
12. 0x362683225b724b8d2d652a95968c57a6f4199ed4f2ad60900fc3603492f17520
13. 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae