Evidence row 294899

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Retrieve a full research article by its path. Use paths from search results.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "format": {
            "default": "markdown",
            "description": "'markdown' for full article, 'summary' for metadata + first paragraph",
            "enum": [
              "markdown",
              "summary"
            ],
            "type": "string"
          },
          "path": {
            "description": "Article path, e.g. 'age-reversal/categories/01-epigenetic-reprogramming.md'",
            "type": "string"
          }
        },
        "required": [
          "path"
        ],
        "type": "object"
      },
      "name": "get_article"
    },
    {
      "description": "Get the most recently updated research articles.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "description": "Optional filter by top-level category",
            "type": "string"
          },
          "count": {
            "default": 5,
            "description": "Number of articles (default 5, max 20)",
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "get_latest_research"
    },
    {
      "description": "Get the full hierarchical topic tree from grandpasai.com with page URLs.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "get_topic_tree"
    },
    {
      "description": "List all research categories and subcategories with article counts.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "list_categories"
    },
    {
      "description": "Full-text search across Grandpa's AI research corpus. Returns ranked results with titles, summaries, and article paths.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "description": "Optional filter: 'age-reversal', 'artificial-intelligence', 'humanoid-robotics', 'space-colonization', or 'custom'",
            "type": "string"
          },
          "maxResults": {
            "default": 10,
            "description": "Maximum number of results (default 10, max 25)",
            "type": "number"
          },
          "query": {
            "description": "Search query — words or phrases to find in the research",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_research"
    }
  ]
}

What the leaf hashes

{"body":"1333e0d2f09f2744a7d8e0a97fd36210ca3c9f82253a9c571882bdf32e0f930e","id":294899,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793050475877835,"prev":null,"subject":"e499047f-5439-4ed4-93a6-4ee976ff7561","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. 0xa008cbd4867347fb4f72f2b52824cf60a5b44a56d402b7f1a1581c0eec93f068
2. 0x0bd989382d77bf0a59eff52b48b44fa58a2cc10026ea753ff78936d784bcd588
3. 0x4d0efe66db81a78c71c9a2820380601094c750c4c075f945678dd74e82961ac6
4. 0xecbe3ab9043d0e249441778d67918577c9fd4dea392c7b7b7c6eb19c488dc5cb
5. 0xacd1477bb10ce74a2b33511e3294b29c2d95b82b033b0f9685b96dd70f3e0f21
6. 0x95fcf6612f2324b002c6671200958e3ae8242b0207988b8cf3b5a7223c8eddb7
7. 0xd795de61cd6741561a13aeee5b7250bc7f35e9860af64a1476d8a30b480e3828
8. 0x582379f374be27b108e54698f75494a0db8e80eca260ebe30579168e11ae9df4
9. 0x918fe223c638311c0f301ceacc89695376b6ee455c15c2dbc34fc1baa1410306
10. 0xcf091ffdbe96bdd26d17022c3444ccf611753e061d394098c18b7fd07c41335b
11. 0x201e001c6e19ae71acc15269442af8d1874e41df9926feb22cbf8a2b7fd3180b
12. 0x6367dad81ab5c2e6f424ad3e06310c9b75079293d62a08dfbde98ef993c35229
13. 0xf8d3e004d9a208d2c5e82ab676956d80f8a3c78387c61dad15a3a8269efee0d8
14. 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae