Evidence row 2552020

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Get docs, install command, usage example and full source for one Facade item. Pro sources require a license key in the Authorization header.",
      "inputSchema": {
        "properties": {
          "name": {
            "description": "Item slug as returned by list_components, e.g. 'hero-local-business' or 'booking-slots'.",
            "type": "string"
          }
        },
        "required": [
          "name"
        ],
        "type": "object"
      },
      "name": "get_component"
    },
    {
      "description": "Return the shadcn CLI command that installs one or more Facade items into the current project.",
      "inputSchema": {
        "properties": {
          "names": {
            "description": "One or more item slugs to install in a single command.",
            "items": {
              "description": "Item slug, e.g. 'open-now-badge'.",
              "type": "string"
            },
            "minItems": 1,
            "type": "array"
          }
        },
        "required": [
          "names"
        ],
        "type": "object"
      },
      "name": "get_install_command"
    },
    {
      "description": "List Facade components and blocks (animated React + Tailwind sections for local business, real estate and agency sites). Filter by kind, category, tier or a text query. All filters are optional; without any filter every item is returned.",
      "inputSchema": {
        "properties": {
          "category": {
            "description": "Registry category, case-insensitive. One of: Buttons, Cards, Conversion, Data, Feedback, Forms, Hero, Layout, Local business, Media, Navigation, Real estate, Sections, Text.",
            "type": "string"
          },
          "kind": {
            "description": "'component' for single UI pieces (badges, cards, inputs), 'block' for full page sections (hero, pricing, FAQ).",
            "enum": [
              "component",
              "block"
            ],
            "type": "string"
          },
          "query": {
            "description": "Free text matched against name, title, description and tags, e.g. 'pricing', 'hero', 'booking'.",
            "type": "string"
          },
          "tier": {
            "description": "'free' for MIT licensed items anyone can install, 'pro' for items that need a license key.",
            "enum": [
              "free",
              "pro"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "list_components"
    },
    {
      "description": "Suggest an ordered list of Facade blocks to build a complete page for a business type (e.g. 'plumber', 'real estate brokerage', 'dental clinic', 'marketing agency').",
      "inputSchema": {
        "properties": {
          "business": {
            "description": "The kind of business the page is for, in plain words, e.g. 'plumber', 'hair salon', 'real estate brokerage'.",
            "type": "string"
          }
        },
        "required": [
          "business"
        ],
        "type": "object"
      },
      "name": "suggest_page"
    }
  ]
}

What the leaf hashes

{"body":"45c074bb2292c1234b8b0ea14c674061651b65ea8a264f16e05c13b6b222c381","id":2552020,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793693522187842,"prev":null,"subject":"dae55302-cec2-401e-9d13-292ab07868b8","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0x999856605fdbcdc81e4c7859e4bac6048e736fe927999008d689b0f6ca7558bf
2. 0x6b573a05d4fa4243657fb15f743c510259b435e33f8873588fb10b1b267658e4
3. 0x14a8db5ac789affd19de04487e0d1a8ae1d8c79c9d7fac48e78eb533564bb082
4. 0x4d09b289884d7b07dd32f790d19f047edde7593bcd01ea1131975a374fb49a7a
5. 0xe3953ffda2d434f54da42715ee9bece3a509311839b956cfa9dbbeb789ff7e69
6. 0x4757094189896768adce780716e4083b323c18b1964ba796c624ae7c3e3b1dfa
7. 0x16417a76f3bc720612dc463ad4389348a609911de741e30b59c34bf10fd301d1
8. 0x61f98cb7654b709253ca9400c17e15072014ece0f55141ef801025945a2b2d9f
9. 0x79b3c584173e8ee4e8c775707ded7c43660dab53975b5ea3f190a199f217c608
10. 0x7dc8b047bef90d12a5b2c83f8c61528f0e6ad135692b306ac2d44e847250046d
11. 0x757397e6a07acc3355e9da40f57a9ba6feda5e5823229042f0965367944e9835
12. 0xe96c3e9661ba818444523b64b69e1c93799e202d182e14e10495bf7bc6acf0d6
13. 0x047541275fbded65ddbf146d04bc8eb09e9b534f8e8c3e57ae4e8bfffd8bcb21
14. 0x7657cb1e96189305f3276517cf3716f7cacdef06e4b876b60d2c0bd8b60fda96
15. 0xbdd3407977f70b26d0af6e874d984fe982a78bf95057b70049009db10e525ebc
16. 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7