Evidence row 247298

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.mailsecuritytools.com/v1/bulk-score"
    ],
    [
      "x402",
      "https://api.mailsecuritytools.com/v1/email-check"
    ],
    [
      "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": "Validate an email address: syntax, MX, disposable and role account. $0.01 USDC on Base per call. Returns a verdict of ok, risky or undeliverable without sending mail. Bad syntax returns 400, not charged. Don't use this for confirming a mailbox exists; no SMTP probe is made.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "jane@example.com",
            "group": "query",
            "name": "email",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "Mail Security Tools",
        "tags": [
          "email-validation",
          "email-verification",
          "disposable-email",
          "mx-check"
        ],
        "url": "https://api.mailsecuritytools.com/v1/email-check"
      },
      {
        "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": "5",
          "l30DaysUniquePayers": "4"
        },
        "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": "0.205",
      "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-validation",
      "email-verification",
      "disposable-email",
      "mx-check",
      "email-security-score",
      "dmarc-check",
      "spf-check",
      "dkim-check",
      "domain-grade"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"c617939021c101b7d0e622c801196d2365423c7487a9ba50863399b9d98e807a","id":247298,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793029276964982,"prev":27156,"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. 0x5aee8162fda15654ee840414364fd517f7c9ed4466ea3ce57b096be5b0541956
2. 0x2a6632a4f6c85c6586990281fb89ee0c387300731875b4fb3d6b6e5952b3fa2a
3. 0x6029cc64728a8ade70e3e3de23fe2fc1541dfd2d06cdb79a38dc3ce4012b54cb
4. 0xbe1487c0ea542e782e838e02fb8cba012f24f6ca541bccbffb8b887271dec4fc
5. 0x9e66b76d8ac038ef67c36dec7188ca5cf2f9b5a155774c60a985ed7f4f0c6ae2
6. 0x5287df431007d6907d4bddbbaf7b5627929ce727b733fb9a97456bd891c9a678
7. 0x13af702abad50f43be231760ee4a15420165f1e845fc70b09c9ff99f6315b9af
8. 0x110e04ad88a0fd5adb92a40afb71e63252a0c5f46dc08391791baba25a3f1060
9. 0xee86540c4d23580b0600fce1441629b77f6bd5e53732926077aac2e4d637d1ef
10. 0xd973b6f369dcc849706ecbfa8b548968c407c61af9d74df524ebe4f47698f455
11. 0x31cff173ca81a1fa9b4d9989ccba135fa83af9284e85748cedd858f7cc6cb7c0
12. 0xc4c7772b121e7eab8b40f10646f850453150d76d672e4926bf2534db20273157
13. 0xc8abb13c711b67d9f1ef145286ed450a0f5566f054a4b290ea3d711873bcbe20
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae