← The evidence ledger
Evidence row 65232
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.biotechcatalystsentinel.com/v1/events
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 6d93f998002483bdce563a6ef524200334cc1b9f99e30bf85ea039a999ba503e
- Leaf
- 0xbcee82277e2189677c6527bad3edc20636c0f72a09fd39a2f560f14309317800
What was observed
{
"endpoints": [
[
"x402",
"https://api.biotechcatalystsentinel.com/v1/events"
]
],
"name": "api.biotechcatalystsentinel.com/v1/events",
"owner_address": "0xcd8975137d48ed9bfd1c299a62c01420b860070d",
"raw": {
"accepts": [
{
"amount": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xcD8975137D48ED9bfD1C299a62c01420B860070d",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "3gM4YDDPAi7w1di7rHAAaHc5T1tR7NRXzLWzPPN4ZRaM",
"scheme": "exact"
}
],
"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.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 100,
"since": 0
},
"type": "http"
},
"output": {
"example": {
"data": [
{
"accession": "0009999001-25-000090",
"application_number": "BLA999901",
"applied": true,
"attestation_uid": "0x1111111111111111111111111111111111111111111111111111111111111111",
"authority": "llm_high",
"catalyst_id": 990001,
"company": "Sample Therapeutics, Inc.",
"confidence": "high",
"date_changed": true,
"date_confidence": "confirmed",
"days_to_date": null,
"delta_days": null,
"detected_at": "2025-11-03T13:41:09.000000+00:00",
"drug_name": "SAMPLIMAB",
"event_id": 990101,
"event_type": "new_date_assigned",
"filed_at": "2025-11-03",
"indication": "sample indication (moderate-to-severe examplitis)",
"merged_into": null,
"new_date": "2026-04-18",
"new_date_upcoming": false,
"outcome": null,
"prior_date": null,
"source_quote": "The FDA has assigned a PDUFA target action date of April 18, 2026 for SAMPLIMAB. [FICTIONAL SAMPLE — not a real filing sentence]",
"source_url": "https://www.sec.gov/Archives/edgar/data/9999001/000999900125000090/0009999001-25-000090-index.htm",
"ticker": "XSMPL",
"tickers": [
"XSMPL",
"XPRTN"
]
}
],
"meta": {
"has_more": false,
"limit": 100,
"next_since": 990106,
"total": 1
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
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"default": 100,
"description": "Maximum number of events to return (1-500; default 100).",
"maximum": 500,
"minimum": 1,
"type": "integer"
},
"since": {
"description": "Cursor: return only events with an event_id greater than this (0 = from the start). Pass the last event_id you saw to page forward.",
"minimum": 0,
"type": "integer"
},
"ticker": {
"description": "Optional server-side filter: only events whose record is filed by this ticker's issuer or exposes it as a co-filer in tickers[] (case-insensitive). Composes with since — limit counts matched events, so a filtered backlog drains without gaps. Unknown ticker returns an empty 200. Does not change the price.",
"maxLength": 12,
"minLength": 1,
"pattern": "^\\S+$",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"description": "One row per state change, oldest-first while draining a `since` cursor. `tickers` lists every co-filer exposed to the decision.",
"items": {
"properties": {
"accession": {
"type": [
"string",
"null"
]
},
"application_number": {
"type": [
"string",
"null"
]
},
"applied": {
"type": "boolean"
},
"attestation_uid": {
"type": [
"string",
"null"
]
},
"authority": {
"enum": [
"human_lock",
"llm_high",
"regex",
"llm_medium",
"llm_low",
null
],
"type": [
"string",
"null"
]
},
"catalyst_id": {
"type": "integer"
},
"company": {
"type": [
"string",
"null"
]
},
"confidence": {
"enum": [
"high",
"medium",
"low",
null
],
"type": [
"string",
"null"
]
},
"date_changed": {
"type": "boolean"
},
"date_confidence": {
"enum": [
"confirmed",
"reported",
"estimated",
null
],
"type": [
"string",
"null"
]
},
"days_to_date": {
"type": [
"integer",
"null"
]
},
"delta_days": {
"type": [
"integer",
"null"
]
},
"detected_at": {
"type": [
"string",
"null"
]
},
"drug_name": {
"type": [
"string",
"null"
]
},
"event_id": {
"type": "integer"
},
"event_type": {
"enum": [
"new_date_assigned",
"date_extension",
"decision_outcome",
"retracted",
"restored",
"corrected"
],
"type": "string"
},
"filed_at": {
"type": [
"string",
"null"
]
},
"indication": {
"type": [
"string",
"null"
]
},
"merged_into": {
"type": [
"integer",
"null"
]
},
"new_date": {
"type": [
"string",
"null"
]
},
"new_date_upcoming": {
"type": "boolean"
},
"outcome": {
"enum": [
"approved",
"tentative",
"crl",
"none_found",
null
],
"type": [
"string",
"null"
]
},
"prior_date": {
"type": [
"string",
"null"
]
},
"source_quote": {
"type": [
"string",
"null"
]
},
"source_url": {
"type": [
"string",
"null"
]
},
"ticker": {
"type": [
"string",
"null"
]
},
"tickers": {
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"event_id",
"catalyst_id",
"event_type"
],
"type": "object"
},
"type": "array"
},
"meta": {
"description": "Result metadata, e.g. total count.",
"type": "object"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-12T08:33:55.194Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-12T08:33:54.589Z"
},
"resource": "https://api.biotechcatalystsentinel.com/v1/events",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "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."
}What the leaf hashes
{"body":"6d93f998002483bdce563a6ef524200334cc1b9f99e30bf85ea039a999ba503e","id":65232,"kind":"listing","method":"baseline/1","observed_us":1793025458053841,"prev":null,"subject":"x402_bazaar:https://api.biotechcatalystsentinel.com/v1/events","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0xbceea063037e1b47b98c1cd03675a1e05ce2c874c07fe0dbd764a9ec0fc6de59
- 0xf41a9682d0d2bbf269c00da71b907d42caeb4b282efa463114c8c867267b42c6
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- 0x42c04cf2ff79efc9914515c43e31a7713d0f4e2c69bbfbbc4c184fb8360e0e0e
- 0x65aa2c07f1a12956c7d26c3b85a36a8a366de3db89850e5b40bdc5425aacd257
- 0x733216ced79b407352c3e6fee1d044c4b6dce9af9f128d380e5c6fd80389ba5c
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- 0x747da36f7781b2b20c53f35968bf28ef3b43376581ce1ca8987f1d7a2a347e61
- 0x571bf2cc487a35d2ef7662b375d1fa9179fe0f6cab6f6cebdb1a6113d25f3c92
- 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
- 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
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- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae