Evidence row 237048

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "One briefing as structured JSON: lead story, ranked stories and research items with summaries, why-it-matters and key points, plus when it was ranked.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "key": {
            "description": "briefing key from list_briefings, e.g. 'ai'",
            "type": "string"
          }
        },
        "required": [
          "key"
        ],
        "type": "object"
      },
      "name": "get_briefing"
    },
    {
      "description": "One rendered page of a briefing as a 480x800 1-bit PNG (page 0 is the front page; story pages follow). Made for e-ink and small displays.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "key": {
            "type": "string"
          },
          "page": {
            "default": 0,
            "maximum": 32,
            "minimum": 0,
            "type": "integer"
          }
        },
        "required": [
          "key"
        ],
        "type": "object"
      },
      "name": "get_page"
    },
    {
      "description": "List the briefings available (AI, Frontier Labs, Markets, US Sports, European Football, US News, World News, Crypto & Onchain hourly; Grants & Funding and Noticias Lentas (simple Spanish, B1) daily).",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {},
        "type": "object"
      },
      "name": "list_briefings"
    }
  ]
}

What the leaf hashes

{"body":"2d46e1b30c9a48e5d198c8364cb5b8df665999e2a7b8f23af1b922df65c76f51","id":237048,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793029139898542,"prev":null,"subject":"7361a580-84d0-4d5a-ab69-a5c32403078a","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. 0xcee593d909bf6a6706c9e3fd7a44c9489ed538ac3fb21f936cd04aa14c448c96
2. 0x60e8cbad83b9d3da26bad6e37da753d61d28299feb133ac9b7e20f6213fa065e
3. 0xfeb19b403579d0988f0e733ca68a4423b66e9a7eabfeb170a33cb99663949ab7
4. 0xfabf8bc814600cb6b9a96286bbfb45f076f320db3b0b16ac073f0f94c355e70b
5. 0xa20f69e87cda5f628345102ce3550cc81fac5dc7782ecfe307d4d73abaff8b51
6. 0x634f17225a11d638a30d058ade235a754bb257281ee56c4dedb7ecca498dc0e8
7. 0x271de13c6092d6fee22b98c2ef77661fed7aa7758a268593bf9d51291949d91a
8. 0x9745c1bef1d820bc6468da48e2050968265dd4a67922a6da749751015763d84e
9. 0x620e46a467bb6ea328be9baa498db8c9a6b6f5095a07956301edab68c1ef1f7b
10. 0xe105839525c4828b89b7d05e44f371385eb52639386c098d62734be5b4a1ce05
11. 0xd57a32d9d2666c4270544dcb78bbea2f4774705d3879a86973628e2542543e62
12. 0xa45f4438c9296b0ba586fc2eec9f0202e5d3c61a1d3adc975b80f6a1f4a5ca57
13. 0xe43762a621da83c0b4b63f549cd2e19c428ac702bfc1038d70233867b06c447f
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae