Evidence row 573357

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "PAID ($0.10 USDC via x402 on Base): Verified B2B Person Enrichment, Work Email Finder & LinkedIn-to-Email Resolver powered by Apollo.io. Accepts partial identifiers—(1) first_name + last_name + company domain or organization_name, (2) LinkedIn profile URL (linkedin_url), or (3) email (reverse email lookup)—and returns a deterministic JSON profile with deliverable work email, verification status, job title, seniority (founder, C-suite, VP, director), company firmographics (headcount, industry, founded year), and full employment history. Zero signup or API key required.",
      "inputSchema": {
        "additionalProperties": true,
        "description": "B2B Person Enrichment & Verified Work Email Finder (Apollo.io): Accepts flexible partial person identifiers—such as (1) LinkedIn profile URL only ('linkedin_url' or 'linkedin'), (2) work or personal email only ('email' for reverse email lookup), (3) name ('name' or 'first_name' + 'last_name') with company domain OR fuzzy company name ('domain', 'organization_name', or 'company', e.g. 'Meta' or 'meta.com'), or (4) Apollo person ID ('id')—and resolves a deterministic B2B executive/prospect profile with verified work email, job title, seniority, department, location, company firmographics, and employment history.",
        "properties": {
          "_x402_payment": {
            "description": "Optional x402 signed payment payload (if not passed via HTTP X-PAYMENT header)",
            "type": "string"
          },
          "company": {
            "description": "Alias for organization_name or domain (e.g., 'Meta', 'Stripe', 'instacart.com').",
            "type": "string"
          },
          "domain": {
            "description": "Company website domain or URL (e.g., 'apollo.io', 'stripe.com'). Also accepts a company name (e.g., 'Meta', 'Google') and automatically resolves the canonical domain.",
            "type": "string"
          },
          "email": {
            "description": "Known work or personal email address for reverse-email enrichment into full LinkedIn, title, firmographics, and career history.",
            "type": "string"
          },
          "first_name": {
            "description": "Target person's first name (e.g., 'Tim'). Optional if 'name', 'linkedin_url', 'email', or 'id' is provided.",
            "type": "string"
          },
          "id": {
            "description": "Optional Apollo.io person ID for direct profile hydration.",
            "type": "string"
          },
          "last_name": {
            "description": "Target person's last name (e.g., 'Zheng'). Optional if 'name', 'linkedin_url', 'email', or 'id' is provided.",
            "type": "string"
          },
          "linkedin_url": {
            "description": "Public LinkedIn profile URL (e.g., 'https://www.linkedin.com/in/tim-zheng') to resolve directly into a verified work email and company profile.",
            "type": "string"
          },
          "name": {
            "description": "Target person's full name (e.g., 'Tim Zheng'). Automatically split into first_name and last_name if needed.",
            "type": "string"
          },
          "organization_name": {
            "description": "Company or organization name (e.g., 'Apollo.io', 'Meta', 'Google', 'Stripe') if exact domain is unknown.",
            "type": "string"
          },
          "reveal_personal_emails": {
            "description": "Whether to include verified personal emails if a corporate work email is unavailable (default: false).",
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "enrich_person"
    },
    {
      "description": "FREE pre-flight discovery tool: Inspect live x402 pricing ($0.10 USDC on Base), deterministic JSON input/output schema, SLA latency telemetry, and recent verifiable Base settlement txHashes for Apollo.io B2B Person Enrichment & Work Email Lookup.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "get_enrichment_quote"
    }
  ]
}

What the leaf hashes

{"body":"0cb51c753b2c86f6d0870f1eba84ac4a9df83d3cde39e0df8037f58f618c6ee9","id":573357,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793141046031286,"prev":null,"subject":"5c042f98-2142-46eb-af78-1bf29afefe67","subject_kind":"endpoint"}

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. 0xc9fb981e040b5f47915592b660818b6e5a1beb9be8b005654fcb2c7fee6de59c
2. 0x4312c2ef02766bed60727ae2a3d1c135d0eb7d57d5cf2e25d148ce90bd39d65c
3. 0xbd6e79e5fc2738d95bf944f2adbc2f2555e5e0ffde5a1b6d2a60bf5de377e562
4. 0x08778b022f0ffce7b4e0d5b08b795535b9f4671dafb9b7f654aa063dd915c7ee
5. 0xd7a29cf53359a21c480b90274fa38377431a12b4e7b1e020ddb347300cf6334f
6. 0xae6ff2505ad12bfff0298f2cf7da55dc53355e96852b2a7ecbffccef8f6ee04e
7. 0xbd373337e4a230cf961273beb745fef320f3159e4bc06bcdf66d4269a67675fa
8. 0xb1774e1a6f178f48c4b2dd375a4a45ce228bf8edb9ca572e81ad50c18ba29baa
9. 0xfba10b42f7eb85eb170ce9ad5f6de0884a390a5fbab04ef5c9553aee7ea65194
10. 0x70be1cb0b69928aef504db8bee443a45d3f70036499af4631a01b842ed767c17
11. 0x031a5189f3cedc6cdc917093e3bc1856d6d43693459685f550cf8d6caf1cc0a8
12. 0x7142f07ffeddbd14ceabecb9ab27a468e9ab58a2fca5472c5c6a93f3e98f173e
13. 0x938752e9acd199cd15f468392bc2dd8eefc52293e7144e30b87b241ca6b2513b
14. 0xcc49fd573532e5a29f5be4033f62a2eff71456c020bd2258312b98e95cfe301e
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4