← The evidence ledger
Evidence row 2201785
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://global-hazards.x402tookit.com/hazard-exposure-screen
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c890fd75bf3adb23cee676c0b5c1199a83f996777b83f5d1237ca2f4f12c626a
- Leaf
- 0xbccadf0555963d63ba594c32c75b38dd4b5af23ff01cdb192e3b344e2d0d81ba
What was observed
{
"endpoints": [
[
"x402",
"https://global-hazards.x402tookit.com/hazard-exposure-screen"
]
],
"name": "Global Hazards",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Hazard screen of a coordinate: quake history plus active wildfire, storm, volcano and flood events within a radius.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"lat": 14,
"lon": 121,
"radiusKm": 300,
"years": 10
},
"type": "http"
},
"output": {
"example": {
"activeEventCount": 1,
"activeEvents": [
{
"alertLevel": "Orange",
"category": "volcano",
"direction": "NNW",
"distanceKm": 1,
"source": "GDACS",
"title": "Eruption Taal",
"url": "https://www.gdacs.org/report.aspx?eventid=1000151&episodeid=1&eventtype=VO"
}
],
"asOf": "2026-10-11T08:35:41.381Z",
"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.",
"gdacsOrangeRedCount": 1,
"historyYears": 10,
"lat": 14,
"lon": 121,
"notChecked": [
"flood-plain, tsunami inundation, landslide, liquefaction and storm-surge maps (this is not a site hazard model)",
"earthquakes under magnitude 5 and events older than the history window",
"…3 more"
],
"radiusKm": 300,
"reasons": [
"Tiers: HIGH_ATTENTION = a GDACS Orange/Red event in range or an M6+ quake in the last 30 days; ELEVATED = any active event, 10+ M5+ quakes, or an M6.5+ quake in the history; BACKGROUND = some M5+ hist…",
"All four lookups answered.",
"…1 more"
],
"seismic": {
"largest": {
"depthClass": "intermediate",
"direction": "SW",
"distanceKm": 44,
"magnitude": 6.7,
"place": "15 km S of Hukay, Philippines",
"time": "2021-07-23T20:48:57.357Z"
},
"m5PlusCount": 86,
"m6PlusLast30Days": 0,
"m7PlusInHistory": 0,
"nearestOfLargest100": {
"distanceKm": 26,
"magnitude": 5.2,
"place": "2 km SSW of Bolo, Philippines",
"time": "2017-04-04T16:49:02.250Z"
}
},
"source": "USGS, NASA EONET and GDACS",
"sourceUrl": "https://earthquake.usgs.gov",
"sourcesAnswered": [
"quakes",
"quakeCount",
"…2 more"
],
"summary": "high attention for 14, 121 within 300 km: 86 earthquake(s) of magnitude 5+ in 10 years (largest M6.7); 1 hazard event(s) active in the last 30 days.",
"verdict": "HIGH_ATTENTION"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"lat": {
"description": "Latitude",
"type": "number"
},
"lon": {
"description": "Longitude",
"type": "number"
},
"radiusKm": {
"description": "Radius 50 to 1000 km (default 300)",
"type": "integer"
},
"years": {
"description": "Quake history length, 1 to 30 years (default 10)",
"type": "integer"
}
},
"required": [
"lat",
"lon"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"activeEventCount": {
"type": [
"null",
"number"
]
},
"activeEvents": {
"items": {
"properties": {
"alertLevel": {
"type": [
"null",
"string"
]
},
"category": {
"type": [
"null",
"string"
]
},
"direction": {
"type": [
"null",
"string"
]
},
"distanceKm": {
"type": [
"null",
"number"
]
},
"source": {
"type": [
"null",
"string"
]
},
"title": {
"type": [
"null",
"string"
]
},
"url": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"gdacsOrangeRedCount": {
"type": [
"null",
"number"
]
},
"historyYears": {
"type": [
"null",
"number"
]
},
"lat": {
"type": [
"null",
"number"
]
},
"lon": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"radiusKm": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"seismic": {
"properties": {
"largest": {
"properties": {
"depthClass": {
"type": [
"null",
"string"
]
},
"direction": {
"type": [
"null",
"string"
]
},
"distanceKm": {
"type": [
"null",
"number"
]
},
"magnitude": {
"type": [
"null",
"number"
]
},
"place": {
"type": [
"null",
"string"
]
},
"time": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"m5PlusCount": {
"type": [
"null",
"number"
]
},
"m6PlusLast30Days": {
"type": [
"null",
"number"
]
},
"m7PlusInHistory": {
"type": [
"null",
"number"
]
},
"nearestOfLargest100": {
"properties": {
"distanceKm": {
"type": [
"null",
"number"
]
},
"magnitude": {
"type": [
"null",
"number"
]
},
"place": {
"type": [
"null",
"string"
]
},
"time": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
}
},
"type": [
"null",
"object"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"sourcesAnswered": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T23:26:03.924Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T23:26:03.642Z"
},
"resource": "https://global-hazards.x402tookit.com/hazard-exposure-screen",
"serviceName": "Global Hazards",
"tags": [
"hazards",
"risk",
"screen",
"earthquake",
"global"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Hazard screen of a coordinate: quake history plus active wildfire, storm, volcano and flood events within a radius."
}What the leaf hashes
{"body":"c890fd75bf3adb23cee676c0b5c1199a83f996777b83f5d1237ca2f4f12c626a","id":2201785,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646808891304,"prev":null,"subject":"x402_bazaar:https://global-hazards.x402tookit.com/hazard-exposure-screen","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).
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- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af