Evidence row 308049

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Extract text from a digital PDF into page-numbered JSON with SHA-256 hashes. No account or API key. 0.005 USDC on Base per successful document via x402. Maximum 2 MiB and 25 pages. No OCR, summaries, URL fetching, or verification of document claims.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "pdf_base64": {
            "contentEncoding": "base64",
            "contentMediaType": "application/pdf",
            "description": "Standard padded base64 of PDF bytes, maximum 2097152 bytes. No URL or data-URI prefix.",
            "maxLength": 2796204,
            "type": "string"
          }
        },
        "required": [
          "pdf_base64"
        ],
        "type": "object"
      },
      "name": "pdf_extract"
    }
  ]
}

What the leaf hashes

{"body":"4092262df783a88d3f0296027f22b1178a66bb3a86fee44d137c5c8ea0ec53cd","id":308049,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793058030812782,"prev":null,"subject":"c19fc6d8-6a33-4364-8f37-939867d87167","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. 0xd0c309d4872da906bb383ce3ff4528664bdb4787a4e9da4f85567b391ecf18b3
2. 0x59c347e93c747ec9c0ce67ca2066495a614f3c4643c832480cb1dd90218a07c9
3. 0x46187098aa7ec37287409842cfbd71135a8216933b3943ca82a2ed90e86adea9
4. 0x6a2fabb64ab4a276544fb14d800886852c14bb7a2adfc44c0cc8f72a2b9ab218
5. 0xf6fe56d6a972621e0ef5998e6ca9be0ca17c4e36f560ac677610f350cf9d764e
6. 0x97f836ae4b83d385f0e949a204045ebaeea134ca5d251f9fd40d7c487088c863
7. 0x42893d08e26f3eaf560f8598e171cf115846bfbad49b63208e83180d21e15516
8. 0xe0389ff9f811fd32622c9111f0174f4df415974000fcd4f976f61883b3f39cc3
9. 0xa0d616381ed0c5c291a07abe0af20c8c7fbe3ccaa464a8d253b56a1b36373a26
10. 0x0f53b93a25a2f186fd221bd4e152ef492b0cc841c0b870210a5fd6038ba3602e
11. 0xcbb746ffeda31ff1f1b0d9f74705fed23a3c2abac5d325d65e8e867a7b5e6307
12. 0xa4ec009cd8db00b48fa2e4df84088950b4d34c37254de09f5e3789441c0c5e73
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