← The evidence ledger
Evidence row 125086
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402-factory.com/v1/alerts/severe
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- ce8d85a13536368b12b526cc1fd106f868f11e30681aae53485849581d194ae4
- Leaf
- 0x6afc726ab42b808cc78f948c253cb79f9c82d05a2ed790cbc0edf0233a728b22
What was observed
{
"endpoints": [
[
"x402",
"https://x402-factory.com/v1/alerts/severe"
]
],
"name": "x402-factory",
"owner_address": "0xcc42ed39a06b6cf3f484307ef76b88bf56fb305f",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xCc42Ed39a06b6cF3f484307eF76B88Bf56Fb305f",
"scheme": "exact"
}
],
"description": "Active NWS alerts for a point or state, plus model-forward hazard risk — Official National Weather Service active alerts (public domain, attributed) for a lat/lon or two-letter state, combined with our model's forward 48h hazard probabilities (extreme heat, heavy rain, damaging wind). Pass lat+lon or state.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"lat": 33.4484,
"lon": -112.074
},
"type": "http"
},
"output": {
"example": {
"data": {
"active": [
{
"event": "Flash Flood Warning",
"expires": "2026-07-18T16:02:00-07:00",
"headline": "Flash Flood Warning issued July 18 at 3:52PM MST until July 18 at 4:00PM MST by NWS Tucson AZ",
"onset": "2026-07-18T15:52:00-07:00",
"severity": "Severe",
"source": "NWS"
},
{
"event": "Flash Flood Warning",
"expires": "2026-07-18T17:15:00-07:00",
"headline": "Flash Flood Warning issued July 18 at 3:46PM MST until July 18 at 5:15PM MST by NWS Flagstaff AZ",
"onset": "2026-07-18T15:46:00-07:00",
"severity": "Severe",
"source": "NWS"
}
],
"model_risk": [
{
"hazard": "extreme_heat",
"probability": 0.138,
"window_end": "2026-07-20T12:00:00.000Z",
"window_start": "2026-07-18T12:00:00.000Z"
},
{
"hazard": "heavy_rain",
"probability": 0.677,
"window_end": "2026-07-20T12:00:00.000Z",
"window_start": "2026-07-18T12:00:00.000Z"
}
]
},
"meta": {
"data_mode": "live",
"docs": "https://x402-factory.com/docs/weather.alerts-severe",
"endpoint": "/v1/alerts/severe",
"freshness": "realtime",
"generated_at": "2026-10-05T10:15:58.016Z",
"request_id": "req_00000000",
"sources": [
"NWS",
"stub-model"
],
"version": "1.0.0"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"hazard": {
"description": "Filter alerts and model risk to one hazard class",
"enum": [
"hurricane",
"tornado",
"heat",
"flood",
"winter",
"fire-weather"
],
"type": "string"
},
"lat": {
"maximum": 90,
"minimum": -90,
"type": "number"
},
"lon": {
"maximum": 180,
"minimum": -180,
"type": "number"
},
"state": {
"maxLength": 2,
"minLength": 2,
"pattern": "^[A-Za-z]{2}$",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"additionalProperties": false,
"properties": {
"active": {
"items": {
"additionalProperties": false,
"properties": {
"event": {
"type": "string"
},
"expires": {
"type": "string"
},
"headline": {
"type": "string"
},
"onset": {
"type": "string"
},
"severity": {
"type": "string"
},
"source": {
"const": "NWS",
"type": "string"
}
},
"required": [
"event",
"severity",
"headline",
"onset",
"expires",
"source"
],
"type": "object"
},
"type": "array"
},
"model_risk": {
"items": {
"additionalProperties": false,
"properties": {
"hazard": {
"type": "string"
},
"probability": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"window_end": {
"type": "string"
},
"window_start": {
"type": "string"
}
},
"required": [
"hazard",
"window_start",
"window_end",
"probability"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"active",
"model_risk"
],
"type": "object"
},
"meta": {
"type": "object"
}
},
"required": [
"data",
"meta"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-08T06:15:03.516Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-08T06:15:03.375Z"
},
"resource": "https://x402-factory.com/v1/alerts/severe",
"serviceName": "x402-factory",
"tags": [
"weather",
"alerts",
"nws",
"severe"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Active NWS alerts for a point or state, plus model-forward hazard risk — Official National Weather Service active alerts (public domain, attributed) for a lat/lon or two-letter state, combined with our model's forward 48h hazard probabilities (extreme heat, heavy rain, damaging wind). Pass lat+lon or state."
}What the leaf hashes
{"body":"ce8d85a13536368b12b526cc1fd106f868f11e30681aae53485849581d194ae4","id":125086,"kind":"listing","method":"baseline/1","observed_us":1793025625781579,"prev":null,"subject":"x402_bazaar:https://x402-factory.com/v1/alerts/severe","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).
- 0x6afc7b5414b939ab6c0a530478f9cbf6a55d53f71a5af0db95f91d89239f1a61
- 0xf67195c4be3fd0f81148b6f9244b9f7ec311e76521d15b795e68e17ffb42a56b
- 0x41cf29e6c0568e146c9d4c8cfbec747a73801cdb70c12c7c4fa72fccc0ad12aa
- 0x6c6ae09d70fb32b9c236a85be29f1f3dcf49fe7eb25fc3409ff5064b0fe7933a
- 0x1a7585c16d37f517699177bc7f5cecd97f32febba26285c52d8cef84f9cf6d23
- 0x1e505533ef0d133a0bd055771d6d76e68f924703299f9ebd4f8aad7bfd608943
- 0x0da7ba542c0385aa60c20b831efcb90f65bf0643e660b5c7d436aa4b77522e2f
- 0xd813be0e862356e97f5ce06d694e1a21c23257484d7f8f6a1ca7acdc56d4be7b
- 0x65a5d97e6cfb404384dd55edc11a5db947de642688abe838b6b935e8dc1d779d
- 0x38d2c463ef7581c583f8ede8c591808370e469ec2c5f3189710e20b16d13dd8f
- 0x435232f3fd6b83e88220d17343494fe854d4ecf8a9148117c288f679edde404b
- 0x2a304c51963b65e3ca818b638b2e9a98297b7d6b6a3e14ecca2501aa13b9f556
- 0x9dc4d6f64bc3c323d2c45a28209068cd473b6979bd632a0d694bf94d19bc39df
- 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
- 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
- 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae