Evidence row 821

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.biotechcatalystsentinel.com/v1/catalysts/upcoming"
    ],
    [
      "x402",
      "https://api.biotechcatalystsentinel.com/v1/events"
    ]
  ],
  "name": "api.biotechcatalystsentinel.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453",
      "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
    ],
    "category": "",
    "description": "",
    "domain": "api.biotechcatalystsentinel.com",
    "endpoints": [
      {
        "description": "PDUFA dates a company put in an SEC filing, not a calendar of every US-listed biotech. Each date is grounded in a verbatim filing quote, cited to its EDGAR accession, and scored against the FDA decision. Use when you need the next 1-365 days of those disclosed dates, whole feed or one ticker. Accuracy and coverage are free at GET /v1/accuracy. Flat price per request.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 200,
            "group": "query",
            "name": "limit",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 365,
            "group": "query",
            "name": "within_days",
            "required": false,
            "type": "number"
          }
        ],
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "57",
          "l30DaysUniquePayers": "7"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://api.biotechcatalystsentinel.com/v1/catalysts/upcoming"
      },
      {
        "description": "Change stream for PDUFA dates a company put in an SEC filing: every set, extension and resolution of every tracked catalyst, with the outcome (approval or CRL), the filing quote and its EDGAR source, as a since-cursor feed. Use when you mirror those disclosed dates and need changes as they land, not a snapshot. Accuracy and coverage are free at GET /v1/accuracy. Flat price per request.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 100,
            "group": "query",
            "name": "limit",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 0,
            "group": "query",
            "name": "since",
            "required": false,
            "type": "number"
          }
        ],
        "pricing": {
          "amount": "0.05",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://api.biotechcatalystsentinel.com/v1/events"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "api-biotechcatalystsentinel-com",
    "integrationType": "",
    "isNew": false,
    "name": "api.biotechcatalystsentinel.com",
    "networks": [
      "Base",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.035",
      "currency": "USDC",
      "maxAmount": "0.05",
      "minAmount": "0.02"
    },
    "provider": "api.biotechcatalystsentinel.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": []
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"8bb69c9e248d90d672346793573ff12884760c832704b721e836e3c28aab4931","id":821,"kind":"listing","method":"baseline/1","observed_us":1793025239412548,"prev":null,"subject":"agentic_market:api-biotechcatalystsentinel-com","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. 0xa71d024eeaae8694851d33533b2d99fbfa9d7b8c654fd00ea4084edd098d4d3c
2. 0x20b5ef97cfcd7d0bbd195139159e43eec4d909962652dc9b6555a49d0b925c07
3. 0xbdf5faf00f3a44aa80fbd7f9fd6e142b93aa2ffac8235c9ba645bdb0c80366d7
4. 0x0ebd683f493591a15944b80d009aa9a20a194a8cea28483aae6556ab2ce12751
5. 0x2d3122d921d7900494b413f7e21e161b680ccb60b9c7c979509f74194236bf5b
6. 0x49c3f677ba5cda0df6ceb5673c7f7b61b206439bc419e12056187167c8dd479a
7. 0x2f3bd5e2d7ed2dbcc33c6f47656dd174149088893c940a19a49017366ee85726
8. 0x485cb188905d19e0dca585d231f117b16417d7d9ab4afe2e4506135680070bde
9. 0x8a42d9ca233eeab189f3f26e997112580bb65b31f6fb467e8ac2dfd68ea759fb
10. 0xc6522fc337627b139352697525c95afa35480881a993f2a3b3ab321aa6e7ac50
11. 0xfd7db9a5ff472cfefafacbeb7f7f7dc6fc7e28e7e0d99e3b79d231f0d5f46aee
12. 0x1e464fcb484a1e782f9fe44be5118a9de934eb533c96ba10fc7d20e3a3e4711c
13. 0x292ebdce6b8d3d7ef08ad646a0fd97dee9313ab55c1a350807d9f3013794c37a
14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae