← The evidence ledger
Evidence row 2201619
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://marine-conditions.x402tookit.com/buoy-now
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 08630c9b48f86cf3f451ee84cb4549dbdd6e7631e6f53a2f66397ddd60bd855f
- Leaf
- 0x6357984cabb02aaf918d40581c5df0a43cadfec796a9e2412d0935f575138ed3
What was observed
{
"endpoints": [
[
"x402",
"https://marine-conditions.x402tookit.com/buoy-now"
]
],
"name": "Marine Conditions",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Latest NDBC buoy observation: wind, gust, waves, swell, pressure and water temperature, with a Beaufort and sea-state screen.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"buoy": "46026"
},
"type": "http"
},
"output": {
"example": {
"ageMinutes": 30,
"airTempF": null,
"asOf": "2026-10-12T01:09:30.224Z",
"buoy": "46026",
"degraded": false,
"dewPointF": null,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"latitude": 37.75,
"longitude": -122.83833333333334,
"notChecked": [
"conditions at your location (a buoy measures one spot, often miles offshore)",
"forecast",
"…2 more"
],
"observedAtUtc": "2026-10-12T00:40:00.000Z",
"pressureInHg": 29.64,
"reasons": [
"Screen thresholds here are this tool's own (caution: wind 20 kt, gust 25 kt or seas 6 ft; hazardous: wind 34 kt, gust 40 kt or seas 12 ft), not NWS advisories.",
"Recent observation."
],
"source": "NOAA National Data Buoy Center",
"sourceUrl": "https://www.ndbc.noaa.gov",
"summary": "Buoy 46026 (30 min old): wind 13.6 kt WNW, gusts 17.5; waves 7.2 ft; water 60.3 F; Beaufort 4 (Moderate breeze).",
"verdict": "CAUTION_CONDITIONS",
"waterTempF": 60.3,
"waves": {
"douglasName": "Moderate",
"douglasSeaState": 4,
"significantFt": null,
"swellDirection": "NW",
"swellFt": 7.2,
"swellPeriodSec": 10.8,
"windWaveFt": 4.3,
"windWavePeriodSec": 5.6
},
"wind": {
"beaufortForce": 4,
"beaufortName": "Moderate breeze",
"directionCompass": "WNW",
"directionDeg": 300,
"gustKnots": 17.5,
"knots": 13.6
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"buoy": {
"description": "NDBC station id, e.g. 46026 (San Francisco)",
"type": "string"
}
},
"required": [
"buoy"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"ageMinutes": {
"type": [
"null",
"number"
]
},
"airTempF": {},
"asOf": {
"type": [
"null",
"string"
]
},
"buoy": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"dewPointF": {},
"disclaimer": {
"type": [
"null",
"string"
]
},
"latitude": {
"type": [
"null",
"number"
]
},
"longitude": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"observedAtUtc": {
"type": [
"null",
"string"
]
},
"pressureInHg": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"waterTempF": {
"type": [
"null",
"number"
]
},
"waves": {
"properties": {
"douglasName": {
"type": [
"null",
"string"
]
},
"douglasSeaState": {
"type": [
"null",
"number"
]
},
"significantFt": {},
"swellDirection": {
"type": [
"null",
"string"
]
},
"swellFt": {
"type": [
"null",
"number"
]
},
"swellPeriodSec": {
"type": [
"null",
"number"
]
},
"windWaveFt": {
"type": [
"null",
"number"
]
},
"windWavePeriodSec": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"wind": {
"properties": {
"beaufortForce": {
"type": [
"null",
"number"
]
},
"beaufortName": {
"type": [
"null",
"string"
]
},
"directionCompass": {
"type": [
"null",
"string"
]
},
"directionDeg": {
"type": [
"null",
"number"
]
},
"gustKnots": {
"type": [
"null",
"number"
]
},
"knots": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T23:36:04.013Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T23:36:03.729Z"
},
"resource": "https://marine-conditions.x402tookit.com/buoy-now",
"serviceName": "Marine Conditions",
"tags": [
"buoy",
"waves",
"wind",
"ndbc",
"marine"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Latest NDBC buoy observation: wind, gust, waves, swell, pressure and water temperature, with a Beaufort and sea-state screen."
}What the leaf hashes
{"body":"08630c9b48f86cf3f451ee84cb4549dbdd6e7631e6f53a2f66397ddd60bd855f","id":2201619,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646806919682,"prev":null,"subject":"x402_bazaar:https://marine-conditions.x402tookit.com/buoy-now","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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- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af