Evidence row 278951

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://fda-iom-api.canvas-cart.workers.dev/section/:id/full"
    ]
  ],
  "name": "fda-iom-api.canvas-cart.workers.dev",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "fda-iom-api.canvas-cart.workers.dev",
    "endpoints": [
      {
        "description": "Full text of one section of the FDA Investigations Operations Manual (IOM). Get the id from GET /search?q=<keywords> or GET /chapter/:id. Use this when you need the complete, verbatim text of a specific IOM section for inspection-readiness or regulatory research, not a summary.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "chapter-05--5-1-1",
            "group": "path",
            "name": "id",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://fda-iom-api.canvas-cart.workers.dev/section/:id/full"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "fda-iom-api-canvas-cart-workers-dev",
    "integrationType": "",
    "isNew": false,
    "name": "fda-iom-api.canvas-cart.workers.dev",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.01",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.01"
    },
    "provider": "fda-iom-api.canvas-cart.workers.dev",
    "providerUrl": "",
    "serviceName": "",
    "tags": []
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"71aa896954f2283e90e5cb01de5568b0daa8723c82751b14d1f6a020ebfef970","id":278951,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793042090300329,"prev":272063,"subject":"agentic_market:fda-iom-api-canvas-cart-workers-dev","subject_kind":"source_record"}

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. 0xbf3503d966603c56c8f6879c0f585c22a241d58eab4340606e508c33412227c8
2. 0x00b78246c30c0c539597c869d58d8a2d44bf618c142d233146a9b15389bd90ab
3. 0xbbfe8e382fe6db335d9e149984321e5b2cbb65bd183e9dd74de314dbd23d9c06
4. 0x9fd87eb2c5b80e335dfed85a7345ff4558922d71d2abf6c50313be46c500de80
5. 0xfdd99994bae6cc60cb81d91d3e1b3e0f1fe1d1fed0a4bb074c6dc561f75e9d94
6. 0xc0a0e40673b1dfe568775604796e597571c29defa350f2b08dd59fce5b702f2d
7. 0xc921d4b793165a36744cf05533ff6d1742e8f365c6f19e6d86fca3826c8d4409
8. 0x0d2e6fbdf97a1c9ce64178f0b4215b7c82798017f2f4fc5e2fc5a95705a9865b
9. 0xfff3b8d4ca0c8dc5bf99db7a40143208561010865caf02e27e1c37ceae1c15dc
10. 0x48d04da54de88082e11aa43e473de1dfd941bdfb166e542aa1c13b29e3d7754a
11. 0x0decbdcd600e934c38d679c1b99f27ba6676644e856ed6ba36bca74feb432866
12. 0xc520305226daa0caf1c2416854f726ec072c950c1903497b2a1e88b0c6f406da
13. 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae