Evidence row 407500

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":407500,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793080248972145,"prev":297502,"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 2026-10-27 (273461 rows).

1. 0xcd7c3b1e4150f81bc52ac1021de8300608d0836db9298fe5ff9be12dfcbaad0b
2. 0xe0416901dd1f62ec66eac855843fe31d69d92c68d2f5eee446c852e39f59b684
3. 0x022f07397f96461a76d8cc4f3fdf20972647c1f1cc7e75f61c93d10cfdd1a431
4. 0x6c9c38c373930adf294066bd69492e3a9aa0dc8f17edb36dd70424bc95ea5ed0
5. 0x966c8cf34980f4e6b88b4d7a034b6aec0934b0ca28e1e338a56cf2f28c45d5fa
6. 0x9fc1768eb2235fd50b3cbb7b3490d31cc8e841fa7697846032bf83548e276bc3
7. 0xa546d3c65d45c7caa4ff4d0f6d2ec04557423faf671a1bc3c41d52109683a337
8. 0x49f5d68c1a9fc7e8caa29479da4d86b4eb12f2bc9734fe193bb798c542be0f22
9. 0x69952a1f20a235072f47363543ca4ef9bba308d28872d6ef429a1a4079766234
10. 0xcb52c2419f740ae43dfba57f29f05efee950cf2cc8aef6a5fabe1be0b3842bf8
11. 0xf6faea553d6354c2881afaf6cc13a2f3a8290ee9597618bbe3c61a828c5e4c23
12. 0x6c0803f2d7123e0bcd2a148e9fde0f429f31dc964ced287e760ee656fcd9912f
13. 0xeb77e9d1884bf470f4a13a5869956a83ac37957112a29ccb9e63ddf7791b5a0b
14. 0xcc49fd573532e5a29f5be4033f62a2eff71456c020bd2258312b98e95cfe301e
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4