Evidence row 303972

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Creates a styled QR code for a link, text, email address or phone number and returns the image, a print-size PNG link and a link to edit it in the LNX QR studio. Choose a style and an optional frame with a short call to action (e.g. \"SCAN FOR MENU\").",
      "inputSchema": {
        "properties": {
          "background": {
            "description": "Optional hex background color, e.g. #ffffff. Must be light.",
            "type": "string"
          },
          "color": {
            "description": "Optional hex color for the code itself, e.g. #1e3a8a; overrides the style's colors. Must be dark.",
            "type": "string"
          },
          "content": {
            "description": "What the code opens: a URL, a text, an email address or a phone number (max 900 characters).",
            "type": "string"
          },
          "content_type": {
            "description": "url (default), text, email (opens a new email) or phone (starts a call).",
            "enum": [
              "url",
              "text",
              "email",
              "phone"
            ],
            "type": "string"
          },
          "email_body": {
            "description": "email only: prefilled message.",
            "type": "string"
          },
          "email_subject": {
            "description": "email only: prefilled subject.",
            "type": "string"
          },
          "frame": {
            "description": "Frame around the code. none (default) or outline have no text; label-bottom, label-top, button, solid-card, ticket, tag, bubble, banner, arrow, corners, minimal, phone, double show frame_text.",
            "enum": [
              "none",
              "outline",
              "label-bottom",
              "label-top",
              "button",
              "solid-card",
              "corners",
              "ticket",
              "tag",
              "minimal",
              "phone",
              "bubble",
              "double",
              "banner",
              "arrow"
            ],
            "type": "string"
          },
          "frame_font": {
            "enum": [
              "Inter",
              "Bebas Neue",
              "Oswald",
              "Playfair Display",
              "Archivo Black",
              "Righteous",
              "Space Mono"
            ],
            "type": "string"
          },
          "frame_text": {
            "description": "Call to action shown in the frame, max 24 characters, e.g. \"SCAN ME\", \"SCAN FOR MENU\".",
            "type": "string"
          },
          "style": {
            "description": "Design. classic = plain black squares; rounded / dots = soft black shapes; violet, peach, forest, sunset = color gradients; sand, sky, rose, mint = single brand-like colors; ink-dots = black dots.",
            "enum": [
              "classic",
              "rounded",
              "dots",
              "violet",
              "peach",
              "forest",
              "sand",
              "sky",
              "sunset",
              "rose",
              "ink-dots",
              "mint"
            ],
            "type": "string"
          }
        },
        "required": [
          "content"
        ],
        "type": "object"
      },
      "name": "create_qr_code"
    }
  ]
}

What the leaf hashes

{"body":"03c4c3eab71759918d95ac9950d36ad64c184386132e246c276fd6f43880ad13","id":303972,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793055657506628,"prev":null,"subject":"86af5069-8459-441d-86da-5ea2d60774b6","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. 0xe75bf3a7b1a6042b7e26656c7bffa1192133ad07e93719390fc959f0b750b306
2. 0x3fd0ccc0d20448af1f8055e6ebc2b762760ed2d0c6bc68687fd3ad479e205de8
3. 0x1569c9379fe4d27e854bdf9ece23443e4303d20d3d06f9c866ebf1af3b19e88a
4. 0xfc20ac98886b2826227adc54fb3e8534324d0501734ae6d4e5f285239de83515
5. 0x42c0555cb8a4294411a38a2de1de3cb57d3f195712ffc2839dc772ce758b5136
6. 0x08b32df699015611d8d94609d1647cc0d11d4d1a140831c05c0767801c087f27
7. 0x07257184309710670fbd25da45ab86cee6af3a535ca55b517534ca4e8be76f58
8. 0x49fc16891648636612ed5bc25f23ee5c444b2c5d126d8c4c2c8c9e21606fce2b
9. 0x7ac3b0988445398aa46dab8c66370eba9af298b98f0fbd41fe2bb0ed965c3be1
10. 0x7deeb175e21dc795de5c6a6747c18815aec2ac086521557682cc9d301183bd2e
11. 0x59e039ae04bb13d1c4f6760e5371456ed0590ed6a27668ea3df8a519b5fd4655
12. 0xb866b513dd861c870688f5d1a8e434b170eaa2fafb0961d6a674d452b8e58381
13. 0xafcc1fe54cfe00a3a1de33df127340075f22433bb89848bbc81499cd7aca5b2b
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae