Evidence row 523248

What was observed

{
  "count": 7,
  "tools": [
    {
      "description": "Create a short link with its own link preview. Optional custom slug, and optional A/B variants (each with a title, description, imageUrl or templateId) to test which preview gets more clicks. Returns id, shortUrl and variants. Use the id with get_link_stats.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "destination": {
            "format": "uri",
            "maxLength": 2048,
            "type": "string"
          },
          "slug": {
            "pattern": "^[a-z0-9][a-z0-9_-]{0,63}$",
            "type": "string"
          },
          "variants": {
            "items": {
              "properties": {
                "description": {
                  "maxLength": 500,
                  "type": "string"
                },
                "imageUrl": {
                  "format": "uri",
                  "maxLength": 2048,
                  "type": "string"
                },
                "params": {
                  "additionalProperties": {
                    "maxLength": 1000,
                    "type": "string"
                  },
                  "propertyNames": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "templateId": {
                  "maxLength": 100,
                  "type": "string"
                },
                "title": {
                  "maxLength": 200,
                  "type": "string"
                }
              },
              "type": "object"
            },
            "maxItems": 3,
            "type": "array"
          }
        },
        "required": [
          "destination"
        ],
        "type": "object"
      },
      "name": "create_short_link"
    },
    {
      "description": "Use AI to design a new OG image template from a website's brand (logo, colors, fonts) taken from a URL. Returns the chosen layoutId (a built-in template id usable with generate_og_image), the variables to pass, and the extracted brand kit. Counts against the plan's AI quota.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "url": {
            "format": "uri",
            "maxLength": 2048,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "create_template_from_url"
    },
    {
      "description": "Render a 1200x630 Open Graph image from a template id (see list_templates) and text params such as title and subtitle. Returns the permanent image URL to put in og:image, and whether it was already cached. Optional exp (Unix seconds, paid plans) makes the signed URL expire; leave it out for an og:image URL.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "exp": {
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "params": {
            "additionalProperties": {
              "maxLength": 1000,
              "type": "string"
            },
            "propertyNames": {
              "type": "string"
            },
            "type": "object"
          },
          "templateId": {
            "maxLength": 100,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "templateId"
        ],
        "type": "object"
      },
      "name": "generate_og_image"
    },
    {
      "description": "Get click analytics for a short link by id (from create_short_link): totals plus breakdowns by day, country, device, browser and referrer. Optional from/to dates (YYYY-MM-DD).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "from": {
            "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
            "type": "string"
          },
          "linkId": {
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[\\w-]+$",
            "type": "string"
          },
          "to": {
            "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
            "type": "string"
          }
        },
        "required": [
          "linkId"
        ],
        "type": "object"
      },
      "name": "get_link_stats"
    },
    {
      "description": "List the OG image templates the workspace can render (built-in and custom) with id, name, version and dimensions. Call this before generate_og_image to pick a templateId.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "list_templates"
    },
    {
      "description": "Force social platforms to re-fetch a page's link preview after you changed its OG tags or image: bumps the og:image cache-buster, re-scrapes Facebook, and returns the LinkedIn Post Inspector link and the X cache note.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "url": {
            "format": "uri",
            "maxLength": 2048,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "refresh_preview"
    },
    {
      "description": "Scan a public web page and report its link-preview (Open Graph / Twitter Card) metadata, previews per platform, and issues with fix suggestions. Use it to answer 'why does my link preview look wrong?'.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "url": {
            "format": "uri",
            "maxLength": 2048,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "scan_url"
    }
  ]
}

What the leaf hashes

{"body":"c50d301ec61d2d751d1b0214ca051ccf8fda9c435c27d7f65fc7056777ffb638","id":523248,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793124231025297,"prev":null,"subject":"36d1451b-3691-499e-9b60-31c08374b8f6","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x8ad667e45f670b8aee61f1ca8fc05f3ab72bc079f429852253ae498973cf4428
2. 0xcd5c60552274791344cff9677ca31302e3e825bcfd22b44cc5cc955c7583d89c
3. 0x42818ede67f31a219f6b43e7cb675aa58ed0e8f4cbdfc63b4fd6800cc40efac0
4. 0xe5f9af096b387915d4d215a66b295b14fe23a8ac2506afc0ac07b59c9fcff2f8
5. 0x5079d74d92fd4a70ccff5a2933ea3a163a298f61cb5376e4463df77bfad470bc
6. 0xea918033be9c0cda086c878907afc5980e5b8754b319f48f9a350977ef97db03
7. 0xadcb139e550192ec1a7c785f3f9ce10c7dfdbe30550a70268f500b0b461c37ed
8. 0x86e54b7a8743f5038e2c1ecb4be80d48b7871dc41ae89659226af9571a8a4834
9. 0xde8e4b8aca7df97f2dbbeb6adba84353a91ca19ee2ddfd2ae4ef15e56b7e3b69
10. 0x215901fa5df1301acd35e6214697f9d1caa7039adbe3e43bdb0aea727b670dc4
11. 0x0e491e41680f12f7d8bdf222ee07202258510c3550459071f98f077368a5cd2f
12. 0x30c799f301803795a41119ff9181a1ecb65705ab464b7ef061de2b33772eca73
13. 0x6251e2be57e8d16b82579481d181c265d75096882014489550b74a728741f2f1
14. 0x4964f0806efde5ed25f60da2b45d78cd2e0f07d67e64aad2822f6016ad973c47
15. 0x3c500ec3d3edf0c74b87a6ca8fcd77656bfbe03db3d478bd0c184d0c88839c6b
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4