Evidence row 296883

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Adds a website to OhSnap so it is checked around the clock and the user is alerted when it goes down or comes back. Free accounts can monitor 5 sites every 5 minutes; Unlimited allows any number every 30 seconds. Pass alert_email if the account has no alert channel yet, otherwise the website will run silently. SMS, WhatsApp, Slack and Telegram alerts are configured in the OhSnap dashboard.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "alert_email": {
            "description": "Email address for down/up alerts. Used only if the account has no email alert channel yet.",
            "format": "email",
            "maxLength": 254,
            "type": "string"
          },
          "check_frequency_seconds": {
            "description": "Seconds between checks. Raised to the plan minimum (300 on Free, 30 on Unlimited). Defaults to 300.",
            "maximum": 86400,
            "minimum": 30,
            "type": "integer"
          },
          "name": {
            "description": "Display name. Defaults to the hostname.",
            "maxLength": 100,
            "minLength": 1,
            "type": "string"
          },
          "url": {
            "description": "Website URL or bare domain to monitor.",
            "maxLength": 2048,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "add_monitor"
    },
    {
      "description": "One-off check of whether a website is up right now, from OhSnap's probe network. Works without an account. Use when the user asks \"is my site down?\", \"is X up?\", or wants a status code, response time, or the reason a site fails (DNS failure, SSL error, timeout, HTTP error, Cloudflare edge error). Results are cached for 60 seconds per site, and each user can run 10 checks per minute.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "url": {
            "description": "Website URL or bare domain, e.g. \"example.com\" or \"https://example.com/shop\".",
            "maxLength": 2048,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "check_website"
    },
    {
      "description": "Returns recent outages for one monitored website: when each started and ended, how long it lasted, and the error. On the Unlimited plan each incident includes an AI diagnosis in plain language; on Free it is marked ai_locked.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "days": {
            "description": "How far back to look. Default 30, max 90.",
            "maximum": 90,
            "minimum": 1,
            "type": "integer"
          },
          "limit": {
            "description": "Maximum incidents to return. Default 10.",
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "website_id": {
            "description": "Website id from list_monitors or add_monitor.",
            "maxLength": 64,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "website_id"
        ],
        "type": "object"
      },
      "name": "get_incidents"
    },
    {
      "description": "Lists every website this OhSnap account monitors, with its current status (up, down, warning, pending), last response time, and check interval. Use to answer \"are my sites up?\" and to find a website_id for other tools.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "list_monitors"
    },
    {
      "description": "Sends a clearly labelled test DOWN alert through every alert channel linked to a website (email, SMS, WhatsApp, Slack, Telegram), so the user can confirm alerts reach them. Limited to one test per website per minute.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "website_id": {
            "description": "Website id from list_monitors or add_monitor.",
            "maxLength": 64,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "website_id"
        ],
        "type": "object"
      },
      "name": "send_test_alert"
    },
    {
      "description": "Returns the OhSnap account this MCP key belongs to: email, plan (Free, Unlimited, Agency), the monitor cap, and the fastest allowed check interval. Call before add_monitor to explain plan limits up front.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "whoami"
    }
  ]
}

What the leaf hashes

{"body":"01de98ed379720fb35d95995429871821fa042196d2f3a214d96d205b8c273a7","id":296883,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793052060414977,"prev":null,"subject":"d7b19f29-6bfe-496f-bb1f-a0a3eb94b55d","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. 0x492b027ac1fb9b9342336fcad15d02f8a46dadba78e9c9c35c6082de590ddfd6
2. 0xc3f463d0230bf2af8eba741f328ebf9754c70561f2eb2f4a34f14b42a5a5a570
3. 0xfc04ac029fa539e4e2f96b40354358ffba01b5fe7b3b28b0b14136abc911664f
4. 0x060926c5271d66ed01299a7678d4837bb3570607c83b608ce2e6c907f60dffa8
5. 0xa06e9396ea017123413248d7bb75d5d6515a6abefa8a77dfd00b64caa707a44b
6. 0x9c73341f5c1ef736edbf3a881035fc9b514eb703fda04a6dbc2fcd747017a6d3
7. 0x5db15b0f640db361ce4e7fd848035fdd06ce7a9723f2076ec1d421c089e7802c
8. 0xc7030292d06775814630ce84a84f8aace027d708bd27b383e364a8af1e25fd7f
9. 0x7541cd1918e38f4a0f6add627a7846433315f4898be3452c4fe4e6121a5b9747
10. 0x1c31b9fd609755e3d960fab27bd2b1eb3a2104f15e3f9261a56d30e3613f4c01
11. 0xa40c09a143bc388ccac821ec3854902941c513470a57a806c98060a6d63aedf9
12. 0xee7d5711cd2515f4b08f3e4041d3d56304f9db6bffd82d82746f0f4ea43b8f26
13. 0xb86fa861d04737cb507e721eefbb066d26528fdb6017b1145c18d1223b93ee21
14. 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae