Evidence row 305354

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Explains one accessibility rule (an axe-core rule id such as image-alt or color-contrast): what is wrong, why it matters for customers, who is affected, how to fix it in code and on Shopify, WooCommerce, PrestaShop or Shoptet, and the WCAG 2.2 / EN 301 549 clauses. Free, no API token needed.",
      "inputSchema": {
        "properties": {
          "locale": {
            "default": "en",
            "description": "Language of the card.",
            "enum": [
              "en",
              "uk",
              "de",
              "pl",
              "cs",
              "ro",
              "ru"
            ],
            "type": "string"
          },
          "platform": {
            "description": "Only the tip for this platform, for example shopify or woocommerce.",
            "type": "string"
          },
          "rule": {
            "description": "axe-core rule id, for example image-alt.",
            "type": "string"
          }
        },
        "required": [
          "rule"
        ],
        "type": "object"
      },
      "name": "explain_rule"
    },
    {
      "description": "Explains a WCAG 2.2 level A or AA success criterion (for example 2.4.7) in plain words: what it asks, examples, how to test it by hand and what automated checks can and cannot find. Free, no API token needed.",
      "inputSchema": {
        "properties": {
          "criterion": {
            "description": "WCAG success criterion number, for example 1.4.3.",
            "type": "string"
          },
          "locale": {
            "default": "en",
            "description": "Language of the text.",
            "enum": [
              "en",
              "uk",
              "de",
              "pl",
              "cs",
              "ro",
              "ru"
            ],
            "type": "string"
          }
        },
        "required": [
          "criterion"
        ],
        "type": "object"
      },
      "name": "explain_wcag_criterion"
    },
    {
      "description": "Searches the Pandus library of accessibility rule cards (the axe-core rules Pandus checks, explained for business owners) by words, an axe rule id or a WCAG success criterion such as 1.4.3. Free, no API token needed.",
      "inputSchema": {
        "properties": {
          "locale": {
            "default": "en",
            "description": "Language of the texts.",
            "enum": [
              "en",
              "uk",
              "de",
              "pl",
              "cs",
              "ro",
              "ru"
            ],
            "type": "string"
          },
          "query": {
            "description": "Words, an axe-core rule id (color-contrast) or a WCAG criterion (1.4.3).",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_rules"
    }
  ]
}

What the leaf hashes

{"body":"2b423e353d5d68adf4141e8a9c9c1104b2e794b425d3ff9a62bd9153edaea331","id":305354,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793056411733049,"prev":null,"subject":"c1790aa6-f188-4f52-9cee-b1e17884b6c8","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. 0xd1900ae449fa114e719986f7a19679fd4a99022d1ca4c5266ff8b7491d485447
2. 0xd8e18e9767dc5dd14588ef4a020ac4ac8cb3b21dd68dc0f9745a7cfc055f53f3
3. 0xe8e23ffe7bd4184b660173a042ec16f2320efc26681292d41b502d8ec048933e
4. 0xf5accee2f8b3bce0b19b4dc4fcaeb3706474c3e66e3618bb514806eac00a6acd
5. 0xb83407d51d8f9bcd4f0a4bca86f07823b738bf182f43e6df83f5f9cb546a605c
6. 0x042b0e822861b37dd388ceeac8d023b89d5b2e586fa7cce2de67460f62f3fff8
7. 0x5a919f34bd871ea2a498b373b8dc94b7485dbcadbfda4e1c794cb6c3997d2209
8. 0xeee2f9cb76f85954a1760de31b4573c2824574873a17a5250bfc362cafa25191
9. 0x24aa5cec7ee3a63ea52a8186728f7bb1bf9ada46b07c199990e9b7c0c368b7ac
10. 0xd03ba161f40c51580284bcf2e65fb1818a9cf130ec62c36d7043b982e4e3abee
11. 0xf2fdee89378769052782dfd25aeff4865ec268617aa70e6d5f36f0b04808af0c
12. 0xa4ec009cd8db00b48fa2e4df84088950b4d34c37254de09f5e3789441c0c5e73
13. 0x889eefefef2d4457fe6114f397df813a5cbb85011a6f40309b54ddcd4aba3bd1
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae