← The evidence ledger
Evidence row 2201914
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://exoplanets-nasa.x402tookit.com/host-star-planets
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 812bfd5184f2af78bd86db8bd1e8c2c69afcef5ebf916baa581e56bbd5760e80
- Leaf
- 0xa71070aa99082e25f8b0c241b4d8a1bdc39e22d929f0a774a31be21d50c3ea61
What was observed
{
"endpoints": [
[
"x402",
"https://exoplanets-nasa.x402tookit.com/host-star-planets"
]
],
"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": "All confirmed planets of a host star by name, with star properties and each planet's period, size and habitable-zone position.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"star": "TRAPPIST-1"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T08:48:43.760Z",
"conservativeZoneCount": 3,
"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.",
"notChecked": [
"planets not yet confirmed or not yet discovered: a short list does not mean a short system",
"companion stars' own planets (each host star is listed separately by the archive)",
"…2 more"
],
"planetCount": 7,
"planets": [
{
"discoveryMethod": "Transit",
"discoveryYear": 2016,
"equilibriumTempK": 397.6,
"habitableZonePosition": "TOO_HOT_INSIDE_OPTIMISTIC_INNER_EDGE",
"host": "TRAPPIST-1",
"insolationEarth": 4.153,
"massEarth": 1.374,
"massIsMinimum": false,
"name": "TRAPPIST-1 b",
"orbitalPeriodDays": 1.510826,
"radiusEarth": 1.116,
"semiMajorAxisAu": 0.01154,
"sizeClass": "Earth-size"
},
{
"discoveryMethod": "Transit",
"discoveryYear": 2016,
"equilibriumTempK": 339.7,
"habitableZonePosition": "TOO_HOT_INSIDE_OPTIMISTIC_INNER_EDGE",
"host": "TRAPPIST-1",
"insolationEarth": 2.214,
"massEarth": 1.308,
"massIsMinimum": false,
"name": "TRAPPIST-1 c",
"orbitalPeriodDays": 2.421937,
"radiusEarth": 1.097,
"semiMajorAxisAu": 0.0158,
"sizeClass": "Earth-size"
}
],
"reasons": [
"Habitable-zone position is a screen of orbit against the Kopparapu 2013 climate model, not a habitability claim.",
"Archive lists 7 planet(s) in the system and 7 returned."
],
"source": "NASA Exoplanet Archive (Caltech/IPAC)",
"sourceUrl": "https://exoplanetarchive.ipac.caltech.edu",
"star": {
"ageGyr": 7.6,
"distanceLightYears": 40.54,
"distanceParsecs": 12.42988881,
"luminosityLog10Solar": -3.25727,
"massSolar": 0.0898,
"name": "TRAPPIST-1",
"radiusSolar": 0.1192,
"spectralType": "M8.0 V",
"starsInSystem": 1,
"temperatureK": 2566
},
"summary": "TRAPPIST-1 has 7 confirmed planet(s) in the archive and is 40.5 light-years away; 3 orbit(s) in the conservative habitable zone (TRAPPIST-1 e, TRAPPIST-1 f, TRAPPIST-1 g).",
"verdict": "SYSTEM_FOUND"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"star": {
"description": "Host star name, for example TRAPPIST-1, Kepler-90 or Proxima Cen",
"type": "string"
}
},
"required": [
"star"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"conservativeZoneCount": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"planetCount": {
"type": [
"null",
"number"
]
},
"planets": {
"items": {
"properties": {
"discoveryMethod": {
"type": [
"null",
"string"
]
},
"discoveryYear": {
"type": [
"null",
"number"
]
},
"equilibriumTempK": {
"type": [
"null",
"number"
]
},
"habitableZonePosition": {
"type": [
"null",
"string"
]
},
"host": {
"type": [
"null",
"string"
]
},
"insolationEarth": {
"type": [
"null",
"number"
]
},
"massEarth": {
"type": [
"null",
"number"
]
},
"massIsMinimum": {
"type": [
"boolean",
"null"
]
},
"name": {
"type": [
"null",
"string"
]
},
"orbitalPeriodDays": {
"type": [
"null",
"number"
]
},
"radiusEarth": {
"type": [
"null",
"number"
]
},
"semiMajorAxisAu": {
"type": [
"null",
"number"
]
},
"sizeClass": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"star": {
"properties": {
"ageGyr": {
"type": [
"null",
"number"
]
},
"distanceLightYears": {
"type": [
"null",
"number"
]
},
"distanceParsecs": {
"type": [
"null",
"number"
]
},
"luminosityLog10Solar": {
"type": [
"null",
"number"
]
},
"massSolar": {
"type": [
"null",
"number"
]
},
"name": {
"type": [
"null",
"string"
]
},
"radiusSolar": {
"type": [
"null",
"number"
]
},
"spectralType": {
"type": [
"null",
"string"
]
},
"starsInSystem": {
"type": [
"null",
"number"
]
},
"temperatureK": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:53:15.576Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T22:53:15.388Z"
},
"resource": "https://exoplanets-nasa.x402tookit.com/host-star-planets",
"serviceName": "NASA Exoplanets",
"tags": [
"exoplanet",
"nasa",
"star",
"system",
"astronomy"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "All confirmed planets of a host star by name, with star properties and each planet's period, size and habitable-zone position."
}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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- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af