← The evidence ledger
Evidence row 60310
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://2s.io/api/edu/school-lookup
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 454f3d9abc5f145224e449b0952b9371b37bae0373dda0a779ae4820d31bf3a1
- Leaf
- 0xdcf17466538490daab5c3e247ea73afa6c681fa69651c149fc15f1e1ee964c18
What was observed
{
"endpoints": [
[
"x402",
"https://2s.io/api/edu/school-lookup"
]
],
"name": "2s",
"owner_address": "0x2b6d4988db4723e6908db86ab2b8dfbc51fc32c5",
"raw": {
"accepts": [
{
"amount": "3600",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"scheme": "exact"
},
{
"amount": "3600",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"name": "USDC",
"version": "1"
},
"maxTimeoutSeconds": 60,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"scheme": "exact"
}
],
"description": "Look up any US public K-12 school (~102k, NCES Common Core of Data). Search by name (partial), district (LEA name, partial), state (2-letter), city, zip, or exact ncessch (12-digit NCES id). Each school: NCES id, name, district + LEA id, address, phone, lat/lon, school level (1=primary 2=middle 3=high 4=other) and type (1=regular 2=special-ed 3=vocational 4=alternative), charter/magnet/virtual flags, enrollment, teacher FTE, grade span, CCD year. Results ordered by enrollment. Higher-ed sibling: /api/edu/college-scorecard. Public-domain federal data.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 3,
"name": "lincoln high",
"state": "CA"
},
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"method": {
"const": "GET"
},
"queryParams": {
"properties": {
"city": {
"type": "string"
},
"district": {
"description": "District (LEA) name, partial match.",
"type": "string"
},
"limit": {
"default": 10,
"maximum": 100,
"minimum": 1,
"type": "integer"
},
"name": {
"description": "School name, partial match.",
"type": "string"
},
"ncessch": {
"description": "Exact 12-digit NCES school id.",
"type": "string"
},
"offset": {
"default": 0,
"minimum": 0,
"type": "integer"
},
"state": {
"description": "2-letter state code.",
"type": "string"
},
"zip": {
"type": "string"
}
}
},
"type": {
"const": "http"
}
},
"required": [
"type",
"method",
"queryParams"
],
"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/v1781454341/bazaar-icons/58f7ba8f2b3b8047.png",
"lastUpdated": "2026-10-08T06:13:37.404Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-08T06:13:37.28Z"
},
"resource": "https://2s.io/api/edu/school-lookup",
"serviceName": "2s",
"tags": [
"public-records",
"identifiers",
"ai-agents",
"us-gov-data",
"x402"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Look up any US public K-12 school (~102k, NCES Common Core of Data). Search by name (partial), district (LEA name, partial), state (2-letter), city, zip, or exact ncessch (12-digit NCES id). Each school: NCES id, name, district + LEA id, address, phone, lat/lon, school level (1=primary 2=middle 3=high 4=other) and type (1=regular 2=special-ed 3=vocational 4=alternative), charter/magnet/virtual flags, enrollment, teacher FTE, grade span, CCD year. Results ordered by enrollment. Higher-ed sibling: /api/edu/college-scorecard. Public-domain federal data."
}What the leaf hashes
{"body":"454f3d9abc5f145224e449b0952b9371b37bae0373dda0a779ae4820d31bf3a1","id":60310,"kind":"listing","method":"baseline/1","observed_us":1793025448280813,"prev":null,"subject":"x402_bazaar:https://2s.io/api/edu/school-lookup","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).
- 0xdcf1aef3c1882d625b45abbc0c42e4170e281dec074ead453489f873bc4b4564
- 0x52085df171ab57ab2f906ee3ba523b2b298707b23e333cad26f064e3a36408b3
- 0xd5d9afe3651e410816a435f100fc19c4c4da4684f8b1c76b6329afe8626c9ff3
- 0xfb5d40b566acd46aadb75a030dbe210b78d42f021cb59cd192da45e566b42d66
- 0xadae99f5511877fbf3c740485010a07531785292694b669d540386e20e3a3f2f
- 0x3d12684a4fbfdfa1dcffb304a757b200688f5ac170eee2e2d46e7d5d3c7160e7
- 0x43b6501f2672d9df804eb10696ae3828b9ef28dee84e672185077babf08494a9
- 0xd94ab3fe209ebbf4bef62ef13f53108b68c4226e08386b61b64878d006bea2b3
- 0x7a5c21710da7a465a2797d63226d8e7a5322de298d2400e641dadac2162ac238
- 0x371943ee05636df6deb58d3492ac210a8873be61164ea2f0f126235f7306178c
- 0x24a78783fa8bfae2806b9bb0fa99cf3d1a7fa7f1795401b4b31767e8a2b2abd7
- 0x4b7a7525bd11eaa3154ce1b1171d1b54b83370163f39203e230c520e42560c4b
- 0xa4edde833302b48399053e2519aea1aed1074cd102bf4b553643df1866cce4ec
- 0x0b7541c75cc482a7134110311d7dbd02095d969ba21177de9b21a52a55981718
- 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae