← The evidence ledger
Evidence row 2202232
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://aviation-calc.x402tookit.com/wind-triangle
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f00c32ceb540a5c620589ce4b700b71aa441b0773a1e79305ec6b2ff70de1117
- Leaf
- 0x221baf05897fa60587d7d986370204407f89767743787343211d1828300ed7df
What was observed
{
"endpoints": [
[
"x402",
"https://aviation-calc.x402tookit.com/wind-triangle"
]
],
"name": "Aviation Calculators",
"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": {
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"transactionVersions": [
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"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": "E6B wind triangle: wind correction angle, heading and groundspeed for a course, or track and groundspeed for a heading flown.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"courseDeg": 90,
"magneticVariationDeg": -8,
"tasKt": 120,
"windFromDeg": 180,
"windKt": 30
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T14:44:09.892Z",
"courseDeg": 90,
"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.",
"groundspeedChangeKt": -3.81,
"groundspeedKt": 116.19,
"magneticHeadingDeg": 112.5,
"notChecked": [
"wind that changes along the route: use the wind at your altitude for each leg",
"compass deviation (the aircraft's own compass error card)",
"…2 more"
],
"reasons": [
"sin(WCA) = wind x sin(wind angle) / TAS; groundspeed = TAS x cos(WCA) - wind x cos(wind angle).",
"Magnetic heading = true heading - east variation (add west variation)."
],
"source": "computed locally",
"summary": "To make good 090 true with a 30 kt wind from 180: wind correction right 14.5 degrees, true heading 104 (magnetic 112), groundspeed 116.2 kt.",
"tasKt": 120,
"trueHeadingDeg": 104.5,
"verdict": "HEADING_COMPUTED",
"windCorrectionAngleDeg": 14.48,
"windFromDeg": 180,
"windKt": 30
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"courseDeg": {
"description": "True course to fly, degrees 0 to 360 (gives heading and groundspeed)",
"type": "number"
},
"headingDeg": {
"description": "True heading flown, degrees 0 to 360 (gives track and groundspeed)",
"type": "number"
},
"magneticVariationDeg": {
"description": "Magnetic variation in degrees, east positive (negative for west), -60 to 60",
"type": "number"
},
"tasKt": {
"description": "True airspeed in knots, 20 to 700",
"type": "number"
},
"windFromDeg": {
"description": "Direction the wind blows FROM, degrees 0 to 360 (true)",
"type": "number"
},
"windKt": {
"description": "Wind speed in knots, 0 to 250",
"type": "number"
}
},
"required": [
"tasKt",
"windFromDeg",
"windKt"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
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"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"courseDeg": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"groundspeedChangeKt": {
"type": [
"null",
"number"
]
},
"groundspeedKt": {
"type": [
"null",
"number"
]
},
"magneticHeadingDeg": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"tasKt": {
"type": [
"null",
"number"
]
},
"trueHeadingDeg": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"windCorrectionAngleDeg": {
"type": [
"null",
"number"
]
},
"windFromDeg": {
"type": [
"null",
"number"
]
},
"windKt": {
"type": [
"null",
"number"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:37:55.319Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T22:37:55.16Z"
},
"resource": "https://aviation-calc.x402tookit.com/wind-triangle",
"serviceName": "Aviation Calculators",
"tags": [
"aviation",
"e6b",
"wind-triangle",
"navigation",
"calculator"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "E6B wind triangle: wind correction angle, heading and groundspeed for a course, or track and groundspeed for a heading flown."
}What the leaf hashes
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- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af