Evidence row 303811

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Check the progress of a bulk verification job started with verify_bulk. Free. Returns status (pending, processing, completed, failed), percent progress, and — once completed — the summary counts (deliverable, undeliverable, risky, unknown, catch-all). Report the summary to the user; when they need the result for each address, call get_bulk_results. The full result file can also be downloaded from the ClearBounce dashboard.",
      "inputSchema": {
        "properties": {
          "jobId": {
            "description": "The jobId returned by verify_bulk",
            "type": "string"
          }
        },
        "required": [
          "jobId"
        ],
        "type": "object"
      },
      "name": "check_bulk_status"
    },
    {
      "description": "Return the remaining verification credit balance for the account that owns the API key. Free.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "check_credits"
    },
    {
      "description": "Find a person's business email address from their full name and company domain. Returns candidate addresses with confidence scores, based on published sources and common company address patterns. Finding is free, but candidates are pattern-based guesses until verified. After showing the candidates, tell the user that confirming deliverability costs 1 credit per candidate checked, and ask before verifying. With approval, call verify_email on candidates one at a time starting from the highest confidence, and stop at the first deliverable result.",
      "inputSchema": {
        "properties": {
          "domain": {
            "description": "Company domain, e.g. \"northwindtraders.com\"",
            "type": "string"
          },
          "name": {
            "description": "Full name of the person, e.g. \"Jane Porter\"",
            "type": "string"
          }
        },
        "required": [
          "name",
          "domain"
        ],
        "type": "object"
      },
      "name": "find_email"
    },
    {
      "description": "Get the per-address results of a completed verify_bulk job: status, sub-status and score for each address. Free — no credits. Use this when the user needs to know which addresses passed or failed; do not re-verify them with verify_email. Optionally filter by status, and page through large jobs with offset (up to 500 results per call).",
      "inputSchema": {
        "properties": {
          "jobId": {
            "description": "The jobId returned by verify_bulk",
            "type": "string"
          },
          "limit": {
            "description": "Results per call (default 200, max 500)",
            "type": "number"
          },
          "offset": {
            "description": "Skip this many results (default 0)",
            "type": "number"
          },
          "status": {
            "description": "Only return addresses with this status",
            "enum": [
              "deliverable",
              "undeliverable",
              "risky",
              "unknown"
            ],
            "type": "string"
          }
        },
        "required": [
          "jobId"
        ],
        "type": "object"
      },
      "name": "get_bulk_results"
    },
    {
      "description": "Verify a list of email addresses (2 to 10,000) as one bulk job using the full ClearBounce bulk pipeline — per-domain caching and greylist retries give better accuracy than verifying one by one. Costs 1 credit per unique address; duplicates are removed for free. Returns a jobId immediately (the job runs in the background, roughly 1-10 minutes depending on size). Use check_bulk_status with the jobId to get progress and the final summary. Before starting a large list, confirm with the user that spending that many credits is intended.",
      "inputSchema": {
        "properties": {
          "emails": {
            "description": "The email addresses to verify (2 to 10,000 items)",
            "items": {
              "type": "string"
            },
            "type": "array"
          }
        },
        "required": [
          "emails"
        ],
        "type": "object"
      },
      "name": "verify_bulk"
    },
    {
      "description": "Verify a single email address in real time with a live mailbox check. Returns status (deliverable, undeliverable, risky, unknown), a sub-status reason, a 0-100 quality score, and detailed checks (syntax, MX records, disposable, role-based, catch-all, typo detection). Costs 1 credit per call.",
      "inputSchema": {
        "properties": {
          "email": {
            "description": "The email address to verify, e.g. jane@example.com",
            "type": "string"
          }
        },
        "required": [
          "email"
        ],
        "type": "object"
      },
      "name": "verify_email"
    }
  ]
}

What the leaf hashes

{"body":"a72f8c99a0b3ce115cb714fb1fe612edc69d408eae7f55fe33f7a6707a07d4a9","id":303811,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793055562177651,"prev":null,"subject":"f78d49ef-ff08-4b5d-81d2-0d21bb6782bf","subject_kind":"endpoint"}

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. 0x8019591f0f11eebcf994dbf93b5a05dadbbdd0bf104ec667bf6282321624c71a
2. 0x1484aaaac37d180a4636e4fe45665c4503accb39bd7567b9089a50c4567c004a
3. 0xa2056f250337dd196ebf8876c92b2f1fe023d57fa74d4fd7e09a94dfacef1b55
4. 0xebab755b749f2d9a17b55aa881573b7c8dcdd6f44498e899e61032771b1441f0
5. 0x9a2dc094dc6fb274d352771f7c8a190d54dbfbfc60c4823657dcc2efdb95b9ba
6. 0x23d520456fd49ef3b53608557200abd0c2aa1509075f03df9e92f5417abc131a
7. 0xb3890022a1cf0b99e1297179c1074d8251c8f30a925ecc05f19fa6166ef0bea2
8. 0x7ce231718661b4a86c9a6d35ed8c55a8bd6fc2e3a7cd92be547cbc5071262ad4
9. 0x446341aac5252a350e04f43c2a957a932bda3f6c5cf9e71dc0f70c46c81ffbdb
10. 0x4ac6e7b8710a19dd69c1ac61f6e5bc5b40663b9f632b7d8a1515e0c4fc86564d
11. 0x94ff6a1838bb06ac09899310e3d37518c2cdbae79f32eb90e1b61eb995aed881
12. 0xb9c4107c5cbaf0844324e5ba287c90e0643bb7b9e48e7877adda9372132cf0ea
13. 0x4d2ee986a690e903126f449b4e9e62d5572b350357ab4496a83488949b131c29
14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae