← The evidence ledger
Evidence row 751144
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.findmydirectdoctor.com/v1/hospitals/financial-assistance
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 5249383a2dd302e3736078c2277208ec49b211befbc6c5c6737589347884356c
- Leaf
- 0xf49f51463b128181fc858d21b4f4eacbc00e31197be8fecc5fc9b667bd7a66ba
What was observed
{
"endpoints": [
[
"x402",
"https://api.findmydirectdoctor.com/v1/hospitals/financial-assistance"
]
],
"name": "FindMyDirectDoctor Directory API",
"owner_address": "0xdf0102f7e02be8e80212698c38180adae3e01365",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0xdF0102F7E02be8e80212698C38180ADAE3e01365",
"scheme": "exact"
}
],
"description": "Finds a hospital's financial assistance (charity care) policy link by CMS certification number (CCN), by hospital name and state with fuzzy matching, or for the nearest hospitals to a location. Returns the hospital's own policy page or an explicit statement that no verified link was found, a state charity-care law note where one is on file, and a plain explanation of the federal rule (section 501(r)) that applies to nonprofit hospitals.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 2,
"radius_miles": 25,
"zip": "66210"
},
"type": "http"
},
"output": {
"example": {
"data_as_of": "2026-10-02",
"disclaimer": "Financial assistance rules and amounts differ by hospital and can change. Confirm with the hospital's billing office.",
"explainer": "Federal tax law (section 501(r) of the Internal Revenue Code) requires nonprofit hospitals (tax-exempt charity hospitals) to have a written financial assistance policy (also called charity care) and to share it with patients. Hospitals owned by governments or run for profit are not covered by that rule, although many offer help anyway. The link reported here is the hospital's own page and can go out of date, so the hospital's billing office can confirm the current policy and how to apply.",
"link_notes": "A link is shown only when it was found on the hospital's own website and checked. About 20 percent of the links are system-wide pages rather than a page for one hospital. Links can go stale.",
"match": "nearest",
"query": {
"location": "ZIP 66210",
"mode": "location",
"radius_miles": 25
},
"results": [
{
"address": "12300 Metcalf Avenue",
"ccn": "170185",
"city": "Overland Park",
"distance_miles": 1.9,
"fap_status": "verified_link",
"fap_url": "https://www.saintlukeskc.org/patients-visitors/financial-assistance",
"link_checked": "2026-10-16",
"name": "Saint Luke's South Hospital",
"owner_type": "Voluntary non-profit - Other",
"state": "KS",
"state_charity_care_law": null,
"zip": "66213"
},
{
"address": "10500 Quivira Road",
"ccn": "170176",
"city": "Overland Park",
"distance_miles": 2.9,
"fap_status": "verified_link",
"fap_url": "https://www.hcamidwest.com/patient-resources/patient-financial-resources/financial-assistance",
"link_checked": "2026-10-16",
"name": "Overland Park Regional Medical Center",
"owner_type": "Proprietary",
"state": "KS",
"state_charity_care_law": null,
"zip": "66215"
}
],
"returned": 2,
"source": "FindMyDirectDoctor Foundation hospital cash price library (hospital price files posted under the federal price transparency rule, 45 CFR 180)",
"with_verified_link": 2
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"ccn": {
"description": "6-character CMS certification number (CCN) of the hospital. Use ccn, or name with state, or a location.",
"pattern": "^[0-9A-Za-z]{6}$",
"type": "string"
},
"city": {
"description": "City name. Used together with state.",
"maxLength": 80,
"type": "string"
},
"lat": {
"description": "Latitude in decimal degrees. Used together with lng.",
"maximum": 90,
"minimum": -90,
"type": "number"
},
"limit": {
"default": 5,
"description": "Results per page (default 5, maximum 10).",
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"lng": {
"description": "Longitude in decimal degrees. Used together with lat.",
"maximum": 180,
"minimum": -180,
"type": "number"
},
"name": {
"description": "Hospital name, matched loosely. Used together with state. Up to 5 candidates are returned.",
"maxLength": 100,
"minLength": 2,
"type": "string"
},
"radius_miles": {
"default": 50,
"description": "Search radius in miles (default 50, maximum 150). A larger value is lowered to the maximum.",
"exclusiveMinimum": 0,
"maximum": 150,
"type": "number"
},
"state": {
"description": "2-letter US state code. Used together with city.",
"pattern": "^[A-Za-z]{2}$",
"type": "string"
},
"zip": {
"description": "5-digit US ZIP code. A location is given as zip, or lat with lng, or city with state.",
"pattern": "^\\d{5}$",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data_as_of": {
"type": "string"
},
"disclaimer": {
"description": "Posted hospital self-pay prices for the facility portion only. Final bills can differ. Confirm with the hospital.",
"type": "string"
},
"explainer": {
"description": "Plain explanation that the federal 501(r) rule applies to nonprofit hospitals.",
"type": "string"
},
"link_notes": {
"type": "string"
},
"match": {
"enum": [
"exact",
"likely",
"possible",
"nearest"
],
"type": "string"
},
"query": {
"description": "The request as understood.",
"type": "object"
},
"results": {
"items": {
"properties": {
"address": {
"type": [
"string",
"null"
]
},
"ccn": {
"type": "string"
},
"city": {
"type": "string"
},
"distance_miles": {
"type": [
"number",
"null"
]
},
"fap_message": {
"type": "string"
},
"fap_status": {
"enum": [
"verified_link",
"no_verified_link_found"
],
"type": "string"
},
"fap_url": {
"type": [
"string",
"null"
]
},
"link_checked": {
"type": "string"
},
"match_score": {
"type": "number"
},
"name": {
"type": "string"
},
"owner_type": {
"type": "string"
},
"plain_language_summary_url": {
"type": "string"
},
"state": {
"type": "string"
},
"state_charity_care_law": {
"description": "State charity-care law note where one is on file (WA, NY, IL, CA), otherwise null.",
"properties": {
"note": {
"type": "string"
},
"source_url": {
"type": [
"string",
"null"
]
},
"state": {
"type": "string"
}
},
"type": [
"object",
"null"
]
},
"zip": {
"type": [
"string",
"null"
]
}
},
"type": "object"
},
"type": "array"
},
"returned": {
"type": "integer"
},
"source": {
"type": "string"
},
"with_verified_link": {
"type": "integer"
}
},
"required": [
"query",
"returned",
"results",
"explainer",
"data_as_of",
"disclaimer"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793129241/bazaar-icons/e5667360930b8563.png",
"lastUpdated": "2026-10-28T00:19:42.58Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-28T00:19:42.452Z"
},
"resource": "https://api.findmydirectdoctor.com/v1/hospitals/financial-assistance",
"serviceName": "FindMyDirectDoctor Directory API",
"tags": [
"healthcare",
"doctors",
"direct-primary-care",
"dpc",
"concierge-medicine"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Finds a hospital's financial assistance (charity care) policy link by CMS certification number (CCN), by hospital name and state with fuzzy matching, or for the nearest hospitals to a location. Returns the hospital's own policy page or an explicit statement that no verified link was found, a state charity-care law note where one is on file, and a plain explanation of the federal rule (section 501(r)) that applies to nonprofit hospitals."
}What the leaf hashes
{"body":"5249383a2dd302e3736078c2277208ec49b211befbc6c5c6737589347884356c","id":751144,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178704939038,"prev":null,"subject":"x402_bazaar:https://api.findmydirectdoctor.com/v1/hospitals/financial-assistance","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (231336 rows).
- 0xf49f2f7f7c4b90d1912cf8e00a4a0b61c55d7c1fc911dde05e20ecf78f213c15
- 0x25c06b55e146a76571e67a189969dff5aada2ccc50b244379ae6e6452825817e
- 0x92448faab92a5f116484a278cda680e1ce08b8f7170cdbcc217cf0e745d9e32b
- 0x3b105768b223a4d00ff77a0ac18e379dc8ff82b3136dd4c80ca1ebdd22e1d457
- 0xc4dceb42cad86d6793722b50451533a5e9d68b8fafaef6a7f222eaf924e2f4a2
- 0x6a7e90780c1bfeed4ea5f5439ef7323bc2665013345e9732518f8141aad92524
- 0x7ac028fdb3dca2fd64eb34ce02dfe1d0ea13fe4a933228e7c278433254fbf79a
- 0x46e96e7594445214abbfa62c418ea7314a3b0f8f1eeae112c9ae8331d2850e68
- 0xb060233ac0ccb6ab1de58017e93591b4302cd59654f9898bd0a5b53dff338001
- 0xbdde3eadc72971a8ede46785c9ff14611e7b5e2bcd1a3a06a487708677034eb3
- 0xfe0c265e9d44b7e5e53c5c08fce2496deadceff2e70c99f444200697a2e1f70f
- 0xa89a794e9d78d6d0f6a02ae33432ffbce4feb90f5c68a18a04c66467fad79af2
- 0x39568e4b66f4f298b6b05b4f12c8e6166de92e0449cb11e61f1e4113f17fbc82
- 0xfb2274fa79452c1e494276a3ee3eadb7c66f76a08a80f6923416f3d591053e02
- 0x33bfb51cb957137510d8a1502cd50241c4c0982e2741290f3b8f2d2b1e69de70
- 0xef2ebd45f2cfd41dc3eb213cc4cc144c46b7e9ead2de0b9f627463bad16e3ec8
- 0x67e9ff3e48c515135fcf3df2675aa4996d35d4a328ce41588ee1a7d93347c823
- 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af
- Day root
- 0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
- Chained
- 0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
- Published
- On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae