← The evidence ledger
Evidence row 2201921
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://environment-screen.x402tookit.com/tri-facilities-near
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 8e731fc570987705567964018e613281cec87969e65a62683bfc58fd982bb331
- Leaf
- 0xa8613c7535fc5f5e91f99a9efbbd99df8b923f54fa24418af5fdaf8b250c9c59
What was observed
{
"endpoints": [
[
"x402",
"https://environment-screen.x402tookit.com/tri-facilities-near"
]
],
"name": "Environment Screen",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "30000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "30000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "30000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "30000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "EPA Toxics Release Inventory facilities in a US ZIP code: names, parent companies, open or closed, coordinates.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 10,
"zip": "02134"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-21T00:33:17.712Z",
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"facilities": [
{
"address": "20 LINDEN ST",
"city": "ALLSTON",
"county": "SUFFOLK",
"federalFacility": false,
"frsId": "110002086778",
"lat": 42.35499,
"locationAccuracyM": 150,
"lon": -71.13157,
"name": "CGI INC",
"open": true,
"parentCompany": null,
"state": "MA",
"triFacilityId": "02134CGNCX20LIN",
"zip": "02134"
},
{
"address": "24 DENBY RD",
"city": "BOSTON",
"county": "SUFFOLK",
"federalFacility": false,
"frsId": "110000310869",
"lat": 42.355,
"locationAccuracyM": 150,
"lon": -71.126111,
"name": "CAPITOL CIRCUITS CORP",
"open": true,
"parentCompany": null,
"state": "MA",
"triFacilityId": "02134CPTLC24DEN",
"zip": "021341688"
}
],
"notChecked": [
"facilities below TRI reporting thresholds or outside covered industries: absence from TRI is not a clean bill",
"Superfund / cleanup sites (the Envirofacts tables for them were unavailable)",
"…2 more"
],
"note": "TRI stores west longitude as a positive number; lon here is negated for US states and Puerto Rico.",
"reasons": [],
"shown": 6,
"shownClosed": 0,
"shownOpen": 6,
"source": "EPA Envirofacts TRI_FACILITY",
"sourceUrl": "https://www.epa.gov/enviro/envirofacts-data-service-api",
"summary": "6 TRI facilities with ZIP 02134; 6 of the 6 shown are open.",
"totalFacilities": 6,
"verdict": "TRI_FACILITIES_FOUND",
"zip": "02134"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"limit": {
"description": "Facilities returned, 1 to 50 (default 20)",
"type": "integer"
},
"zip": {
"description": "5-digit US ZIP code",
"type": "string"
}
},
"required": [
"zip"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"facilities": {
"items": {
"properties": {
"address": {
"type": [
"null",
"string"
]
},
"city": {
"type": [
"null",
"string"
]
},
"county": {
"type": [
"null",
"string"
]
},
"federalFacility": {
"type": [
"boolean",
"null"
]
},
"frsId": {
"type": [
"null",
"string"
]
},
"lat": {
"type": [
"null",
"number"
]
},
"locationAccuracyM": {
"type": [
"null",
"number"
]
},
"lon": {
"type": [
"null",
"number"
]
},
"name": {
"type": [
"null",
"string"
]
},
"open": {
"type": [
"boolean",
"null"
]
},
"parentCompany": {
"type": [
"null",
"string"
]
},
"state": {
"type": [
"null",
"string"
]
},
"triFacilityId": {
"type": [
"null",
"string"
]
},
"zip": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"note": {
"type": [
"null",
"string"
]
},
"reasons": {
"type": [
"array",
"null"
]
},
"shown": {
"type": [
"null",
"number"
]
},
"shownClosed": {
"type": [
"null",
"number"
]
},
"shownOpen": {
"type": [
"null",
"number"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"totalFacilities": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"zip": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:52:50.107Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T22:52:49.94Z"
},
"resource": "https://environment-screen.x402tookit.com/tri-facilities-near",
"serviceName": "Environment Screen",
"tags": [
"epa",
"tri",
"toxics",
"facilities"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "EPA Toxics Release Inventory facilities in a US ZIP code: names, parent companies, open or closed, coordinates."
}What the leaf hashes
{"body":"8e731fc570987705567964018e613281cec87969e65a62683bfc58fd982bb331","id":2201921,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646810207286,"prev":null,"subject":"x402_bazaar:https://environment-screen.x402tookit.com/tri-facilities-near","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0xa8614f2f0e25d5a8409a8acbc127ed2925d87d3731eeac905f1a82cf1a149dda
- 0xd18f5cb58a507b4a5aceb93093a1f426a2f5bb96a8510e9e1670aa25fea847a7
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- 0x4bf96985c9177af433dd0eef69310ceb335d657510f9a502e5e4685a0b6a5046
- 0xe3379ba7900b17e3fd0a1de6d2a36e5b7385d514c792e5c59a1bd6b9e1f45149
- 0xef407060654213961f3df651b01933a46058a74e6dd139f33dfa9041cbeafb49
- 0x2921e4540036b32b96b63418d30c5d80d60a76c417fcbaa31689d868169b2014
- 0x2fc8d7722dbc3e85967d6178057583eacd7d7ece5028d8155f0dec7c9a4b4f2e
- 0x312bee2c14100c34d799a63211afca66762caba99ff2b063bb49092fed5640c9
- 0x1507188447eabd219ef30ad5bd14f2eedd6575d009a552619fb7968237e3f98c
- 0x40fd0f6dda83194fb5e17438b1c4dc895d08871eef37ae05317aee45785e29ac
- 0xf7fc51348087e5c1e3d386772d38113ebc053fa2bb0a5e6728e5f86d0ac25db5
- 0x7a6e52c5cebe3ec69d18cc200885d32108ba1be1b19f2da2ead8becbf3db3cb1
- 0x7abf7290721a0b95be706db03c09de9df65bcba8e18ffe4616da43d9c31d6b0a
- 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
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- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af