← The evidence ledger
Evidence row 74376
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://econ.memoryapi.org/x402/econ/business?
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 4bd1ec72d59ceddd5ecad4de34ef41bf087b198dc57c038fada36fb424a4642f
- Leaf
- 0xb32e6a43d1c9ab6139f5556d7b4444524c919c106691557eea9b68cc516a0ee8
What was observed
{
"endpoints": [
[
"x402",
"https://econ.memoryapi.org/x402/econ/business?"
]
],
"name": "econ.memoryapi.org/x402/econ/business",
"owner_address": "0x24facafeb49b4e3facf0b3e69604a2f4640c9bf2",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x24FAcafEB49b4e3FACF0B3e69604A2F4640c9bf2",
"scheme": "exact"
}
],
"description": "U.S. County Business Patterns — number of businesses, employees, and payroll by industry (NAICS) and state.",
"extensions": {
"bazaar": {
"info": {
"description": "U.S. County Business Patterns from Census. Returns business counts, employee totals, and payroll by industry and state.",
"iconUrl": "https://memoryapi.org/icon.png",
"input": {
"method": "GET",
"queryParams": {
"naics": "51",
"state": "CA",
"year": "2021"
},
"schema": {
"properties": {
"naics": {
"description": "NAICS industry code: 51=Tech, 52=Finance, 53=Real Estate, 54=Professional, 62=Healthcare, 23=Construction",
"type": "string"
},
"state": {
"description": "2-letter state code. Omit for all states.",
"type": "string"
},
"year": {
"description": "Data year (default 2021)",
"type": "string"
}
},
"required": []
},
"type": "http"
},
"output": {
"example": {
"industry": "Information/Technology",
"naics_code": "51",
"success": true,
"top_states": [
{
"avg_salary": 256123,
"employees": 1209148,
"establishments": 28906,
"state": "CA"
}
],
"totals": {
"employees": 4521000,
"establishments": 156234
}
}
},
"serviceName": "MemoryAPI Econ",
"tags": [
"economics",
"macro",
"finance",
"data"
]
},
"schema": {
"properties": {
"input": {
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
}
},
"required": [
"method"
]
}
}
}
}
},
"lastUpdated": "2026-10-02T11:19:57.614Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-02T11:19:57.365Z"
},
"resource": "https://econ.memoryapi.org/x402/econ/business?",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "U.S. County Business Patterns — number of businesses, employees, and payroll by industry (NAICS) and state."
}What the leaf hashes
{"body":"4bd1ec72d59ceddd5ecad4de34ef41bf087b198dc57c038fada36fb424a4642f","id":74376,"kind":"listing","method":"baseline/1","observed_us":1793025488870079,"prev":null,"subject":"x402_bazaar:https://econ.memoryapi.org/x402/econ/business?","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).
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- 0xd5f5f50c951ec12936980ba4177be7a5a76c4bc8e456ada61ce4049317a41255
- 0xf45c653c6987ed87fee769044f1c1bd648ba25cdfdc5a4c8a8d2b379cdc8afa7
- 0x8e9bd56ef483f39f6c21a995aba378d36fd4a4b67df1403ffee8e6f009190116
- 0x99a0bbfc041f192453ab5f46520ed01f0e0a02e6626ff8422ac4f28107f3368e
- 0xf3459130fadd071ff4467116a3e6ee7756254e46323de97b1e1bd4c8bdffe533
- 0x34826d27a00fb6f2649b492e5ca5ff6025211b9bda757487c3351c0e533593f3
- 0x08b0ee375f7c28afd23e265e3e1bed91ba37304e42eafa665ef4a7f785b3e7bf
- 0x3d6ec9d5ef8daa604601742088e213da0a439db6eff6ce50ec3ffb264a60ddd3
- 0x3b1c0e225d1b1cb24cd5d5ea4af2de20ed68a1eaf8b61924ed1b81e4b9cf7e39
- 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
- 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
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- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae