Evidence row 562576

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Get full structured details for one resource by type + slug. Works for all resource types: app, mcp, skill, prompt, plugin, learning, workflow. Use the search_* tools first to find the slug.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "slug": {
            "description": "Resource slug from the search_* tools",
            "type": "string"
          },
          "type": {
            "description": "Resource type, e.g. 'mcp', 'prompt', 'skill', 'plugin', 'learning', 'app'",
            "enum": [
              "app",
              "mcp",
              "skill",
              "prompt",
              "plugin",
              "learning",
              "workflow"
            ],
            "type": "string"
          }
        },
        "required": [
          "type",
          "slug"
        ],
        "type": "object"
      },
      "name": "get_resource"
    },
    {
      "description": "Get full structured details for one tool by slug: description sections, features, categories, website, pricing model and last-verified date. Use search_tools first to find the slug.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "slug": {
            "description": "Tool slug, e.g. 'chatgpt'",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_tool"
    },
    {
      "description": "Search VaneTools' curated MCP (Model Context Protocol) server directory. Returns slug, name, one-line tagline, category, website and detail page URL.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "description": "Filter by top-level category slug: coding, productivity, creatives, video-audio, business, research, entertainment",
            "type": "string"
          },
          "limit": {
            "description": "Max results (default 10)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Keyword to match against name/slug/tagline",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_mcp_servers"
    },
    {
      "description": "Search the VaneTools plugin directory (editor and agent plugins). Returns slug, name, tagline, category, website and detail page URL.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "description": "Filter by top-level category slug: coding, productivity, creatives, video-audio, business, research, entertainment",
            "type": "string"
          },
          "limit": {
            "description": "Max results (default 10)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Keyword to match against name/slug/tagline",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_plugins"
    },
    {
      "description": "Search the VaneTools curated prompt library (prompts for writing, coding, marketing and more). Returns slug, name, tagline, category and detail page URL.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "description": "Filter by top-level category slug: coding, productivity, creatives, video-audio, business, research, entertainment",
            "type": "string"
          },
          "limit": {
            "description": "Max results (default 10)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Keyword to match against name/slug/tagline",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_prompts"
    },
    {
      "description": "Search VaneTools' AI learning resources (tutorials, guides, handbooks and courses). Returns slug, name, tagline, category and detail page URL.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "description": "Filter by top-level category slug: coding, productivity, creatives, video-audio, business, research, entertainment",
            "type": "string"
          },
          "limit": {
            "description": "Max results (default 10)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Keyword to match against name/slug/tagline",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_resources"
    },
    {
      "description": "Search the VaneTools Agent Skills directory (reusable skill packages for AI coding agents). Returns slug, name, tagline, category and detail page URL.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "description": "Filter by top-level category slug: coding, productivity, creatives, video-audio, business, research, entertainment",
            "type": "string"
          },
          "limit": {
            "description": "Max results (default 10)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Keyword to match against name/slug/tagline",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_skills"
    },
    {
      "description": "Search the VaneTools bilingual AI tools directory (~34k tools). Returns slug, name, one-line tagline, category, website and detail page URL.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "description": "Filter by top-level category slug: coding, productivity, creatives, video-audio, business, research, entertainment",
            "type": "string"
          },
          "limit": {
            "description": "Max results (default 10)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Keyword to match against name/slug/tagline",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_tools"
    }
  ]
}

What the leaf hashes

{"body":"8faab8755763f5aea80944e3e940cadd94e0f02b6401e5a94b186e4c3d4d48bd","id":562576,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793137435006246,"prev":null,"subject":"0d9ed4df-363c-4af4-9a1e-8729869716ce","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. 0xef7dd791ad0d9f24789f12bdd7ddd4eb6c43766f97f7ca7fc4ca65a107bdc763
2. 0x912f5d8c1d1f5e72e95b5824def0bc5d8edc78612849856c18017aa537f5189d
3. 0x753cbc0e2dd1c780ae102da320adc99764118bfe3797bdcbc08a36f9296dcf52
4. 0x8d65a69eb81d36ea460e5b509900c2181644cfebc1e77459c58529b64def489e
5. 0xee8160b65522d30ac45319b1656eb4555ba9dde81eeb2b3e174337bbfbacb469
6. 0xa2f1f292456e3e6cb76aa4f52c44993b33013de7e53875fc6781aba9a0a11bfd
7. 0xa2538c63dcd25fb4acf73dbc1da4d01ae66b82829f7bef42c742a95dd40dbbb2
8. 0x6d614b3ac1c812ebeccb14e6a69f03ec62eb96e4a1139e7d6791dc71a82e79b8
9. 0x6cf3421fda53cd4c4eaf0d3b8fef47c6d6ad61ca40fcbf3404656db955934f70
10. 0xa2f7ee67cd3d18eb6a574f673a6de5baa7d1c805f36fc95b0d45b03af8e8f907
11. 0x1b4399bae757271424da8a4da03b907adf56af6574a865598cf68ad834ce7e01
12. 0xc0448a83784154aec794ac7a249e46b6f618529dfd246ef492240c5d9b62d921
13. 0xe0ddf3e1c8349b7fe55d4b2a6864486a77de3e3c0e371df44d69aeb837cfd79c
14. 0xce1471491ffb52101d7cd9884cca0fb37a9496f6e8250375054907d24a35d04f
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4