Evidence row 565955

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Use when you need the latest posts or headlines from a site, blog, newsroom, podcast or subreddit: give a feed URL or just the site URL (the RSS/Atom feed is auto-discovered from the page) and get normalized items with title, link, publish date (ISO 8601), author, summary, image and categories, newest first as the feed lists them. Paid tool: x402 USDC on Base, $0.002 per successful call; call without payment to receive the PaymentRequired object.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "default": "20",
            "description": "Max items (1-100).",
            "type": "string"
          },
          "url": {
            "description": "Feed URL, or a site/page URL to auto-discover its feed.",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "feed"
    },
    {
      "description": "Use when you need the outgoing links of one page (crawling, SEO audits, finding a contact/pricing/docs page, link building): fetches the URL live (respects robots.txt) and returns every http(s) link resolved to an absolute URL, deduplicated, with anchor text (or image alt), internal vs external, rel nofollow/sponsored/ugc, target=_blank and occurrence count, plus internal/external totals. Filter with type=internal|external. Paid tool: x402 USDC on Base, $0.002 per successful call; call without payment to receive the PaymentRequired object.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "default": "500",
            "description": "Max distinct links (1-2000).",
            "type": "string"
          },
          "type": {
            "default": "all",
            "description": "Which links to return.",
            "enum": [
              "all",
              "internal",
              "external"
            ],
            "type": "string"
          },
          "url": {
            "description": "Public http(s) URL of the page.",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "links"
    },
    {
      "description": "Use when you need a link preview or page metadata: fetches the URL live and returns title, description, site name, canonical URL, language, Open Graph and Twitter card tags, preview image, favicon, author and publish date, RSS/Atom feeds, robots meta and JSON-LD (schema.org) types, after following redirects. Paid tool: x402 USDC on Base, $0.001 per successful call; call without payment to receive the PaymentRequired object.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "url": {
            "description": "Public http(s) URL.",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "meta"
    },
    {
      "description": "Use when you need to read one public web page: fetches the URL live and returns its main readable content as clean Markdown (or plain text), with navigation, ads, cookie banners and boilerplate removed, plus title, byline, publish date, language and word count. Respects robots.txt. Server-rendered HTML only (no JavaScript execution). Paid tool: x402 USDC on Base, $0.003 per successful call; call without payment to receive the PaymentRequired object.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "format": {
            "default": "markdown",
            "description": "Output format.",
            "enum": [
              "markdown",
              "text"
            ],
            "type": "string"
          },
          "images": {
            "default": "true",
            "description": "Keep images as Markdown image links (true/false).",
            "type": "string"
          },
          "links": {
            "default": "true",
            "description": "Keep hyperlinks as Markdown links (true/false).",
            "type": "string"
          },
          "maxChars": {
            "default": "50000",
            "description": "Cut the content at this many characters (1000-200000).",
            "type": "string"
          },
          "url": {
            "description": "Public http(s) URL of the page.",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "read"
    },
    {
      "description": "Use when you need the list of pages a site publishes (to crawl it, find recent posts, or audit SEO): give a site URL (the sitemap is discovered from robots.txt Sitemap: lines, then /sitemap.xml, /sitemap_index.xml, /wp-sitemap.xml) or a sitemap URL directly. Returns the page URLs with lastmod, changefreq and priority; for a sitemap index, returns its child sitemaps and (expand=true, default) the URLs of the first child sitemaps up to the limit. Gzipped sitemaps supported. Paid tool: x402 USDC on Base, $0.002 per successful call; call without payment to receive the PaymentRequired object.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "expand": {
            "default": "true",
            "description": "For a sitemap index, also read the first child sitemaps (true/false).",
            "type": "string"
          },
          "limit": {
            "default": "1000",
            "description": "Max page URLs returned (1-5000).",
            "type": "string"
          },
          "url": {
            "description": "Site URL (e.g. https://example.com) or a sitemap .xml/.xml.gz URL.",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "sitemap"
    }
  ]
}

What the leaf hashes

{"body":"bfc8aa410360a71ba17a74483182a482fdecc2a9567af4f5ce68e8b631c9c8a0","id":565955,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793138304477026,"prev":null,"subject":"032d1d96-95c8-4328-af0d-951f8c329a84","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. 0xa345fd231648d143db3e05e98a8d80651101b42075dd4ad6fb8a11285b7a771a
2. 0xdac07ef5feea6d8c0d5cc137a49fea7bc9fbf80d6bad8f9e09944ad448277bff
3. 0x8b6f60f203b4b5162f3ebf9a656aa6cd079d06d10a9387b51c923f33020d0401
4. 0xadae63cf5e16b1e96b745d8030c4dae780c636aa112bdc491bba67b4b89c9540
5. 0x77e55309e1aa5fcc4bd48c29af3a2f79fc07379066753aca2c8b27e74e167894
6. 0xee677f9f2c6170f00727ab2dc52da04b3c5000558f688a0b294f5d77bb85990b
7. 0x9ae6a222f18a9e45e5172e69a02be4f1255c5367d018aba1ca23845bf72ee658
8. 0xafcd1009abb58daa83aa185740ce2086309db406595a8c1d1caf27cc20482929
9. 0x49e5a66bd20ea337de1c33d5c34fea416e462f2140d949d5bb1c5c0d06b98d04
10. 0xa0ea68059b84d3e8082a97b6f66d61d00092b368cef47b86fa4b782fde336acf
11. 0xd9929b92c66c9433d68fc7d48eddf234ae765144f98d397c91dd32e9124ee876
12. 0x0c9efc71bd73a056aab018d34b600797c2287eaa0df0398c8404046e9420d684
13. 0x87816aee66e8f6e0f1e55ea83733bb58cf9612d36c45fd5b7fc5d6f4484b78fd
14. 0x0644f7e2a4b5bf9b66f185cc3fbb766d456ad94490183852f4c6db5855114cc5
15. 0xa3fff4662cd48659f5bafd0612931759a90e53a7b4209ed8f26f6594a07bb547
16. 0x64c405a28e8819716221eb2529fe4ce277ab08025e17e685cbd5ece75ceb75c7
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4