← The evidence ledger
Evidence row 60261
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://1gateway.dev/v1/weather/forecast
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- cff9403f5791577804c7bbe1f4a801bf3a6ea941f9a023c9e5e9113c8253050a
- Leaf
- 0x1ded5cdc3e37870a6b9a8b041214bd67a262a41d4b3931edf2ac5220eafc0f56
What was observed
{
"endpoints": [
[
"x402",
"https://1gateway.dev/v1/weather/forecast"
]
],
"name": "1gateway",
"owner_address": "0x6246eee0355dd7a93c888fe59e1151388a0cc5a1",
"raw": {
"accepts": [
{
"amount": "4500",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x6246eee0355Dd7A93C888fE59e1151388A0cC5a1",
"scheme": "exact"
}
],
"description": "Use when you need the official weather forecast for a point in South Korea for the next ~3-5 days. Data: KMA (Korea Meteorological Administration) village forecast on a 5 km grid, issued 8 times a day. Input: lat, lon (WGS84 decimal; Korea only). Output: JSON hourly then 3-hourly temperature C, sky, precipitation type and probability %, rain and snow amounts, humidity %, wind; plus daily min/max. Example: ?lat=37.5665&lon=126.978",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"lat": 37.5665,
"lon": 126.978
},
"type": "http"
},
"output": {
"example": {
"attribution": "Source: Korea Meteorological Administration (기상청) Short-term Forecast via data.go.kr (dataset 15084084, KOGL Type 1 — attribution required). Normalized/transla…",
"cache": "miss",
"daily": [
{
"date": "2026-10-09",
"maxPopPct": 20,
"maxTempC": null,
"minTempC": null
}
],
"hourly": [
{
"humidityPct": 35,
"precipitation1h": {
"category": "none",
"mm": 0,
"raw": "강수없음"
},
"precipitationProbabilityPct": 20,
"precipitationType": "none",
"resolution": "1h",
"sky": "mostly_cloudy",
"snowfall1h": {
"category": "none",
"cm": 0,
"raw": "적설없음"
},
"temperatureC": 25,
"time": "2026-10-09T15:00:00+09:00",
"waveHeightM": 0,
"windCategory": null,
"windDirectionDeg": 297,
"windEastwardMs": 0.3,
"windNorthwardMs": -0.1,
"windSpeedMs": 0.4
}
],
"issuedAt": "2026-10-09T14:00:00+09:00",
"location": {
"gridNx": 60,
"gridNy": 127,
"gridResolutionKm": 5,
"lat": 37.5665,
"lon": 126.978
},
"timezone": "Asia/Seoul"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"lat": {
"description": "Latitude, WGS84 decimal degrees (KMA domain ≈ 32–44; outside → 400, not charged)",
"examples": [
37.5665
],
"maximum": 44,
"minimum": 32,
"type": "number"
},
"lon": {
"description": "Longitude, WGS84 decimal degrees (KMA domain ≈ 123–133)",
"examples": [
126.978
],
"maximum": 133,
"minimum": 123,
"type": "number"
}
},
"required": [
"lat",
"lon"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"attribution": {
"type": "string"
},
"cache": {
"type": "string"
},
"daily": {
"items": {
"properties": {
"date": {
"type": "string"
},
"maxPopPct": {
"type": "integer"
},
"maxTempC": {
"type": [
"integer",
"null"
]
},
"minTempC": {
"type": [
"integer",
"null"
]
}
},
"type": "object"
},
"type": "array"
},
"hourly": {
"items": {
"properties": {
"humidityPct": {
"type": "integer"
},
"precipitation1h": {
"properties": {
"category": {
"type": "string"
},
"mm": {
"type": [
"integer",
"null"
]
},
"raw": {
"type": "string"
}
},
"type": "object"
},
"precipitationProbabilityPct": {
"type": "integer"
},
"precipitationType": {
"type": "string"
},
"resolution": {
"type": "string"
},
"sky": {
"type": "string"
},
"snowfall1h": {
"properties": {
"category": {
"type": "string"
},
"cm": {
"type": "integer"
},
"raw": {
"type": "string"
}
},
"type": "object"
},
"temperatureC": {
"type": "integer"
},
"time": {
"type": "string"
},
"waveHeightM": {
"type": "integer"
},
"windCategory": {
"type": [
"string",
"null"
]
},
"windDirectionDeg": {
"type": "integer"
},
"windEastwardMs": {
"type": "number"
},
"windNorthwardMs": {
"type": "number"
},
"windSpeedMs": {
"type": [
"number",
"null"
]
}
},
"type": "object"
},
"type": "array"
},
"issuedAt": {
"type": "string"
},
"location": {
"properties": {
"gridNx": {
"type": "integer"
},
"gridNy": {
"type": "integer"
},
"gridResolutionKm": {
"type": "integer"
},
"lat": {
"type": "number"
},
"lon": {
"type": "number"
}
},
"type": "object"
},
"timezone": {
"type": "string"
}
},
"required": [
"location",
"issuedAt",
"timezone",
"attribution",
"cache",
"hourly",
"daily"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"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/v1791609992/bazaar-icons/c4d9db8f8f483844.png",
"lastUpdated": "2026-10-10T10:56:23.027Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-10T10:56:22.447Z"
},
"resource": "https://1gateway.dev/v1/weather/forecast",
"serviceName": "1gateway",
"tags": [
"korea",
"weather",
"weather-forecast",
"precipitation",
"temperature"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Use when you need the official weather forecast for a point in South Korea for the next ~3-5 days. Data: KMA (Korea Meteorological Administration) village forecast on a 5 km grid, issued 8 times a day. Input: lat, lon (WGS84 decimal; Korea only). Output: JSON hourly then 3-hourly temperature C, sky, precipitation type and probability %, rain and snow amounts, humidity %, wind; plus daily min/max. Example: ?lat=37.5665&lon=126.978"
}What the leaf hashes
{"body":"cff9403f5791577804c7bbe1f4a801bf3a6ea941f9a023c9e5e9113c8253050a","id":60261,"kind":"listing","method":"baseline/1","observed_us":1793025448173631,"prev":null,"subject":"x402_bazaar:https://1gateway.dev/v1/weather/forecast","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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- 0xa7f716df00adc892b232c59d424c3dae1c876d5f367713001087c07213308edb
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- 0xf0f77ed1d484625ddaf2f6e58baa64c9dec47a22b1a6beb91219a17bddac7dfa
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- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae