← The evidence ledger
Evidence row 2201910
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://exoplanets-nasa.x402tookit.com/transit-depth
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 560e42d2fe7db62aa7d3ce0c37f492ec8cd2c88ab85c31d7ed4210e4d3cd5cc8
- Leaf
- 0x99b5c9408089bed6bed4e0e4fd04207a6a404f836cb636ad96176f4b7e7abcab
What was observed
{
"endpoints": [
[
"x402",
"https://exoplanets-nasa.x402tookit.com/transit-depth"
]
],
"name": "NASA Exoplanets",
"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": "Transit depth (Rp/Rs squared) in percent and ppm from planet and star radius, plus duration if period and star mass are given.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"periodDays": 365.25,
"planetRadius": 1,
"planetUnit": "earth",
"starMassSolar": 1,
"starRadiusSolar": 1
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T08:48:48.123Z",
"degraded": false,
"depthFraction": 0.00008405,
"depthPercent": 0.008405,
"depthPpm": 84.05,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"formula": "depth = (Rp / Rs)^2",
"notChecked": [
"limb darkening, which deepens the real centre-of-transit dip by tens of percent",
"starspots, flares and other stars blended into the light curve",
"…2 more"
],
"planetRadiusKm": 6378.1,
"radiusRatio": 0.0091679,
"reasons": [
"Radii use IAU nominal equatorial values: Earth 6378.1 km, Jupiter 71492 km, Sun 695700 km."
],
"semiMajorAxisAu": 1,
"source": "computed locally",
"starRadiusKm": 695700,
"summary": "A 1 earth-radius planet crossing a 1 solar-radius star blocks 0.00841% of the light (84.1 ppm). The transit lasts about 13.1 hours at impact parameter 0 (orbit 1 au).",
"transitDurationFormula": "T = (P / pi) asin( sqrt((Rs + Rp)^2 - (b Rs)^2) / a )",
"transitDurationHours": 13.1,
"verdict": "COMPUTED"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"impactParameter": {
"description": "Impact parameter 0 (central) to 1 (default 0)",
"type": "number"
},
"periodDays": {
"description": "Orbital period in days (with starMassSolar) for the duration",
"type": "number"
},
"planetRadius": {
"description": "Planet radius value, 0.01 to 1000",
"type": "number"
},
"planetUnit": {
"description": "earth (default) or jupiter",
"type": "string"
},
"starMassSolar": {
"description": "Star mass in solar masses (with periodDays)",
"type": "number"
},
"starRadiusSolar": {
"description": "Star radius in solar radii, 0.05 to 1000",
"type": "number"
}
},
"required": [
"planetRadius",
"starRadiusSolar"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"depthFraction": {
"type": [
"null",
"number"
]
},
"depthPercent": {
"type": [
"null",
"number"
]
},
"depthPpm": {
"type": [
"null",
"number"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"formula": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"planetRadiusKm": {
"type": [
"null",
"number"
]
},
"radiusRatio": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"semiMajorAxisAu": {
"type": [
"null",
"number"
]
},
"source": {
"type": [
"null",
"string"
]
},
"starRadiusKm": {
"type": [
"null",
"number"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"transitDurationFormula": {
"type": [
"null",
"string"
]
},
"transitDurationHours": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:53:29.138Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T22:53:28.968Z"
},
"resource": "https://exoplanets-nasa.x402tookit.com/transit-depth",
"serviceName": "NASA Exoplanets",
"tags": [
"exoplanet",
"transit",
"astronomy",
"photometry",
"calculator"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Transit depth (Rp/Rs squared) in percent and ppm from planet and star radius, plus duration if period and star mass are given."
}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).
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- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af