Evidence row 290721

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":290721,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793047515759179,"prev":null,"subject":"ca1de7c1-9b62-45ea-bc1c-ebd8ff1e04e1","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. 0xe4de95ab069c064eba0b2481fc12588f47603b737343c03d30bbc37902c0f4b9
2. 0xd74485336ba20b0dd53a90a25029adbe86db142f4aacdfb3a07a6353a138ab6a
3. 0x68407ff2331b08f65ed94592c82b57761b72f828f55bc1999222e28895ccb6af
4. 0xc97ea7c66c5e09afb8ab2024bfdb51e61d7c3ae21bf1516d377c6e11bfbaf032
5. 0xab9ee82ea7b67f3e99f4086d4dc6141561ce61f1a16c9fd865cacfd8a5fb7986
6. 0xea4f1f01bf9cdc3eb442cf12cdf4cbe8571fa7cccd0766821a916777ffadde55
7. 0xb3096ee74ed2ab618298a0ae51910f13cb7c4c613fb2963ace796618c8f5ba7f
8. 0xee363800ec8220e8771b01eee393d22ff744f9244a606a4772b178e1e2e45d79
9. 0x13310043ba03cba1d49faed238d6649837f256fc92211e77729a02015628249b
10. 0xae20f858f8c4842e59d76c7757bc2292fa50be5cf7697b284a497ee9ef7b2958
11. 0x29ce97b519f8e4dff85ae3006efb1220983d391295891bc9cbd27db51c46ec37
12. 0x2fc38b57208d692aab1ee89b6e26917df292126314027c27360c5644a63fd0bc
13. 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae