Evidence row 217406

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Estimate how many invited guests will attend (adults vs children) and the food, drink, cake, favor and plate quantities to buy, with standard buffers. Use when sizing the shopping list from an invite count. Do NOT use for spending (use party_budget) or a dated to-do plan (use party_timeline).",
      "inputSchema": {
        "properties": {
          "children_pct": {
            "description": "Percent of attendees who are children, 0-100, default 0",
            "maximum": 100,
            "minimum": 0,
            "type": "number"
          },
          "expected_decline_pct": {
            "description": "Percent of invitees expected to decline, 0-100, default 15",
            "maximum": 100,
            "minimum": 0,
            "type": "number"
          },
          "invited": {
            "description": "People invited, whole number 1-1000, e.g. 40",
            "maximum": 1000,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "invited"
        ],
        "type": "object"
      },
      "name": "headcount_plan"
    },
    {
      "description": "Allocate a total party budget (USD) across seven categories (venue, food and drink, cake, decorations, entertainment, favors, contingency) by spending style, with per-guest spend and saving tips. Use when deciding what to spend before booking. Do NOT use to estimate attendance or food quantities (use headcount_plan).",
      "inputSchema": {
        "properties": {
          "budget": {
            "description": "Total party budget in USD, positive, e.g. 600",
            "type": "number"
          },
          "guests": {
            "description": "Number of guests, whole number 1-500, e.g. 30",
            "maximum": 500,
            "minimum": 1,
            "type": "integer"
          },
          "style": {
            "description": "Spending style that sets the category percentages: 'budget', 'standard' (default) or 'premium'",
            "enum": [
              "budget",
              "standard",
              "premium"
            ],
            "type": "string"
          }
        },
        "required": [
          "budget",
          "guests"
        ],
        "type": "object"
      },
      "name": "party_budget"
    },
    {
      "description": "Generate a supplies and prep checklist grouped by area (food and drink, decorations, music and activities, practical, safety) for a home or venue party, with extra items for keywords like pool, bbq, costume, outdoor, kids, alcohol or potluck. Use when preparing what to buy and set up. Do NOT use for a dated plan (use party_timeline).",
      "inputSchema": {
        "properties": {
          "extras": {
            "description": "Optional keywords that add themed items: pool, bbq, costume, outdoor, kids, alcohol, potluck, e.g. [\"bbq\",\"kids\"]",
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "venue": {
            "description": "'home' for a party at home, 'venue' for a hired venue or hall",
            "enum": [
              "home",
              "venue"
            ],
            "type": "string"
          }
        },
        "required": [
          "venue"
        ],
        "type": "object"
      },
      "name": "party_checklist"
    },
    {
      "description": "Build a dated countdown plan for a party, with task lists at 6 weeks, 4, 3, 2 and 1 week, 3 days, the day before and the day itself. Use when the date is set and the host needs to know what to do when. Do NOT use for spending (use party_budget) or a categorized supplies list (use party_checklist).",
      "inputSchema": {
        "properties": {
          "event_date": {
            "description": "Party date YYYY-MM-DD, e.g. 2026-12-20",
            "type": "string"
          },
          "event_type": {
            "description": "Optional event label added to the T-21 tasks, e.g. 'birthday', 'bbq' or 'kids party'",
            "type": "string"
          },
          "guests": {
            "description": "Optional guest count 1-1000; adds a cake-sizing task at T-14",
            "maximum": 1000,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "event_date"
        ],
        "type": "object"
      },
      "name": "party_timeline"
    }
  ]
}

What the leaf hashes

{"body":"59a6375616275e1bd6a3fe35d2453542d230c033c62339c3fc94bc2bbf8406b0","id":217406,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793026539747602,"prev":null,"subject":"fd34951b-c140-4228-bd99-5e034ef7e8dd","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. 0xe35be70c81da9938e8eef5cacd157425a9c88b7ce48e990a57c1c74d8e1767a4
2. 0x76e7ca42a248f3f9a9ff824f71581579a666d2bb13dbcadef986d58020b4c8fe
3. 0xd04200e6f55608061b8821cf1c26b7df54e677f987f0359f774f666ff22abb49
4. 0x520dc8b02750cfdf93e20770003441ed4cdbc3fa8a736d866841865f330beb0a
5. 0xd78799ceb8add3a57a5da51e12c1f140ec2cdc588b26c079dfa79af03694904c
6. 0xe7491ae0b3fb3676f1b26c8c7bb2957828b89a322b6496ab60413478681b5dc9
7. 0x6eec0ce4e94fc22351f3f589d15e81f8ca67556555ec4084fa7361c88c524403
8. 0x07ec84e1934da207fd0d951d13d9d9c8c51f2380ef0fb0036d4288262c996af2
9. 0x36d8bacd2c79197358e1bd6d4ab712e5271c8a222b6f14605cbc9d5f2df416f6
10. 0x524cdad3ff21631a037fd9cf4afb42f4fe79c72ee7a2da0b514327762fb35ecc
11. 0xb545b804be0d2933a674be6ac915c6c6235897d0274e66143aa7cf879b9d86a3
12. 0x8e135936797442c4eea61915f2c9f8f6df06e1322204cd0e6986ada3e54c77cc
13. 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae