Evidence row 290802

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Fetch one public web page and return its readable content as compact Markdown (links and tables kept) plus title, meta description, language, canonical URL, OpenGraph/Twitter tags, JSON-LD structured data (products, articles, organisations, events), mailto emails and tel phone numbers. Use to read or summarise a page or pull its schema.org data. No JavaScript rendering.",
      "inputSchema": {
        "properties": {
          "include_markdown": {
            "default": true,
            "type": "boolean"
          },
          "max_chars": {
            "default": 8000,
            "description": "Markdown length cap",
            "maximum": 20000,
            "minimum": 500,
            "type": "integer"
          },
          "url": {
            "description": "Public http(s) URL",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "extract_page"
    }
  ]
}

What the leaf hashes

{"body":"1a5945b55d9a4adeab19970f3c1706aee9e356105dd477c662f5cbe3d72c0d79","id":290802,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793047552481512,"prev":null,"subject":"68adc12b-570f-4385-8b3f-2fed3e1c5025","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. 0xd3b70b1bccaf5819701ce3091321ae56287a84ae2c24ac8ddc8432f37ff390df
2. 0x03710d0bdbeafb09a17901ddab0eb46f2b80be4b35d81dd689ce3a962c3bce1f
3. 0xe0ed88fe9cf73ce3ede4b20b213285a054f44649e732ab146b926f3802f6e0c0
4. 0x4ff9d2990dedf3466ff994b461e4561cbe4012dc6ed8826f81ad463c7e0f146b
5. 0x522a895826c59459d667582762852378e8c3c8e6584d8f63fbdf3ce183101ac4
6. 0x25747847619b3fea6365eb16ef4564dec37c4e8dcd0f58f23a3913b84af2b067
7. 0xd3ef26691bdb34df541c3650190437e40eecec9611bf79d6efb46d34720df4f6
8. 0x78f361bed56bd3bc1681a15ca11ae0a1529b01c1edc72eacfee454828814220d
9. 0x12e4fa06b4e4b4c3b6f238829d354bf8a160a58ccc8f1a0b4f455518b8801abd
10. 0x0834e939cfa9df57864320cb906e871c291dd8cc7aa8327c208c14867fb03a20
11. 0x14362d8e1df4e5c0cf9c6949986f8f51c6a0b5605b593e145aade16c5f5c871a
12. 0x9f6b360f1992898cb3f17e45d0bf5a96f946d7eaf9705a57af03c151a407d239
13. 0x889eefefef2d4457fe6114f397df813a5cbb85011a6f40309b54ddcd4aba3bd1
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae