Evidence row 570918

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Find the RSS, Atom and JSON feeds a website publishes (validated by downloading and parsing each one), with feed title, type, last post date, post count and the newest posts. Use when you need a feed URL for a site or want to know if a site has a feed. Up to 5 sites per call.",
      "inputSchema": {
        "properties": {
          "max_items_per_feed": {
            "default": 3,
            "description": "Latest posts to include per feed (0-10)",
            "maximum": 10,
            "minimum": 0,
            "type": "integer"
          },
          "sites": {
            "description": "Websites, domains, section URLs (example.com/blog), Reddit/Medium/YouTube-channel/GitHub-repo URLs, or a feed URL. Up to 5.",
            "items": {
              "type": "string"
            },
            "maxItems": 5,
            "minItems": 1,
            "type": "array"
          }
        },
        "required": [
          "sites"
        ],
        "type": "object"
      },
      "name": "find_feeds"
    },
    {
      "description": "Get the newest posts of one website from its main feed: title, URL, published date, author, plain-text summary (max 300 chars), categories and image. Use to catch up on a blog, news site, subreddit, YouTube channel or GitHub releases without scraping pages.",
      "inputSchema": {
        "properties": {
          "limit": {
            "default": 5,
            "description": "How many posts (1-10)",
            "maximum": 10,
            "minimum": 1,
            "type": "integer"
          },
          "site": {
            "description": "Website, domain or feed URL, e.g. \"github.blog\"",
            "type": "string"
          }
        },
        "required": [
          "site"
        ],
        "type": "object"
      },
      "name": "latest_posts"
    }
  ]
}

What the leaf hashes

{"body":"a31d9329c29a3e7e3894a1efac4caa57ceedae281ffbd00cc21d5c127deb194f","id":570918,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793139979182868,"prev":null,"subject":"f1faa1fd-755f-425c-9136-66203e2fe01b","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. 0xe71f762a91a3b803acc004d4173feede13b5f5b01b8c861fccb4fc1dc4d62719
2. 0x622b7cb56834635886d82f5a12738063db3cea6b633561197d96e3afd6369c23
3. 0x13911029a47e71634a151f39567fb6dcdef8478c6bc6548694c881a6eeeecb1f
4. 0x1503172a857d3e9f29d04b0d858668968b82e23e45a9c4da13d6b029198905b0
5. 0xb317a25bf9b31aee1fc3537d7ed71b78aa2317f5b0683761c3ae761970e42a4f
6. 0xf4d9b2c30074fdbe91d0d1c0b1e02ab90adbe5b4f7b1f747b9ac133faceda15d
7. 0xf992906ab32791b1a84bfef0f01181c88885b06bc56fbf33fa50b349777a5caf
8. 0x4e83f422d4de4e1b87da4991fbfd7cc1bb900d0d3327e72deb2e9c7c8992cca3
9. 0x2cb9c37da551f614e3e1e95f719893eb04e9b2206546035e434bccf4ee25fe9b
10. 0xae45a0b127be15a79b0a29d4da96c66c7de866604dc96ff1ebad427f8e281dce
11. 0x71c8691e7266a630f55422792837d4ddf268c83444f68d63c646c42b70b5ded5
12. 0x4f9b484326a98846a2342f967ce1e64ee9fa304288bb4355ab666475eb77b61c
13. 0xab6eb305329046d5ccb835dd8ca955f794e3ca110379a94dbdc780d016448561
14. 0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4