← The evidence ledger
Evidence row 2202234
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://aviation-calc.x402tookit.com/turn-hold
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 5ad9cbd9970d5dbbf45fea33204525fdd5117bd911f012bb78ae0c67f40c753e
- Leaf
- 0xff1f80c01f4d04452303f13f19a0d026732a75843edf97cdb594b37c9ba9892d
What was observed
{
"endpoints": [
[
"x402",
"https://aviation-calc.x402tookit.com/turn-hold"
]
],
"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": {
"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": "Turn rate, radius, bank angle and load factor from true airspeed, plus holding pattern leg length, width and time.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"altitudeFt": 5000,
"rateDegPerSec": 3,
"tasKt": 120
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T14:44:09.365Z",
"bankDeg": 18.24,
"bankRuleOfThumbDeg": 19,
"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.",
"holdLegLengthNm": 2,
"holdLegMinutes": 1,
"holdPatternFuelNote": "multiply the pattern time by your hourly fuel flow",
"holdPatternMinutes": 4,
"holdWidthNm": 1.273,
"loadFactorG": 1.053,
"notChecked": [
"wind: a hold flown in wind drifts, and entry procedures, wind correction and outbound timing adjustments are not modelled",
"holding speed limits and the published pattern (inbound course, left or right turns, leg length in nm): follow the chart and ATC",
"…2 more"
],
"reasons": [
"Turn rate = g tan(bank) / TAS (about 1092 x tan(bank) / TAS in knots, degrees per second); radius = TAS^2 / (g tan(bank)).",
"The 'TAS / 10 + 7' rule of thumb gives a standard-rate bank of 19 degrees.",
"…1 more"
],
"secondsFor360": 120,
"source": "computed locally",
"stallSpeedIncreasePercent": 2.6,
"summary": "At 120 kt, a bank of 18.2 degrees gives 3 degrees per second (a 360 takes 120 s), turn radius 0.637 nm (3868 ft), load factor 1.05 g. A holding pattern with 1-minute legs is 2 nm long and 1.27 nm wide…",
"tasKt": 120,
"turnDiameterNm": 1.2732,
"turnRadiusFt": 3868,
"turnRadiusNm": 0.6366,
"turnRateDegPerSec": 3,
"verdict": "STANDARD_RATE_TURN"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"altitudeFt": {
"description": "Altitude in feet for the holding leg time: 1 minute up to 14,000 ft, 1.5 minutes above (default 5000)",
"type": "number"
},
"bankDeg": {
"description": "Bank angle in degrees, 3 to 75 (give this, or rateDegPerSec; default is a standard-rate 3 degrees per second turn)",
"type": "number"
},
"rateDegPerSec": {
"description": "Turn rate in degrees per second, 0.5 to 20 (3 is standard rate)",
"type": "number"
},
"tasKt": {
"description": "True airspeed in knots, 30 to 700",
"type": "number"
}
},
"required": [
"tasKt"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"bankDeg": {
"type": [
"null",
"number"
]
},
"bankRuleOfThumbDeg": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"holdLegLengthNm": {
"type": [
"null",
"number"
]
},
"holdLegMinutes": {
"type": [
"null",
"number"
]
},
"holdPatternFuelNote": {
"type": [
"null",
"string"
]
},
"holdPatternMinutes": {
"type": [
"null",
"number"
]
},
"holdWidthNm": {
"type": [
"null",
"number"
]
},
"loadFactorG": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"secondsFor360": {
"type": [
"null",
"number"
]
},
"source": {
"type": [
"null",
"string"
]
},
"stallSpeedIncreasePercent": {
"type": [
"null",
"number"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"tasKt": {
"type": [
"null",
"number"
]
},
"turnDiameterNm": {
"type": [
"null",
"number"
]
},
"turnRadiusFt": {
"type": [
"null",
"number"
]
},
"turnRadiusNm": {
"type": [
"null",
"number"
]
},
"turnRateDegPerSec": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:37:49.183Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T22:37:49.027Z"
},
"resource": "https://aviation-calc.x402tookit.com/turn-hold",
"serviceName": "Aviation Calculators",
"tags": [
"aviation",
"turn",
"holding",
"bank-angle",
"calculator"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Turn rate, radius, bank angle and load factor from true airspeed, plus holding pattern leg length, width and time."
}What the leaf hashes
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Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0xff1f7c07856180330756b0a791a5d2e2ead9b3c17612bd682e7dd5100ce6cc99
- 0xc499d97eff70c3a9f329ba862e19ac8cf19d43b28e60cd321182010d0ddce2e1
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- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af