← The evidence ledger
Evidence row 2201361
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://space-objects.x402tookit.com/impact-risk-object
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 8e902612c666e42f3b4659cc04979ddcf6884a4ed578a93e5547b0e5aadec95b
- Leaf
- 0xe3cc28b48f93bef21795443f5cab01161bd342ed7f6d30a7e2e143e3b7dc0002
What was observed
{
"endpoints": [
[
"x402",
"https://space-objects.x402tookit.com/impact-risk-object"
]
],
"name": "Space Objects",
"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": "Is this asteroid on the JPL Sentry impact-risk list? Probability, Palermo and Torino levels, size and likeliest impact dates.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"designation": "101955"
},
"type": "http"
},
"output": {
"example": {
"absoluteMagnitudeH": 20.63,
"asOf": "2026-10-11T08:41:43.685Z",
"dataArcDays": 7693.3,
"degraded": false,
"designation": "101955",
"diameterKm": 0.490000000000006,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"impactEnergyMt": 1421,
"impactProbability": 0.0005717,
"impactSpeedKmS": 12.68,
"lastObservation": "2020-10-3.80160",
"likeliestImpactDates": [
{
"date": "2182-09-24.85",
"energyMt": 1421,
"palermo": -1.58,
"probability": 0.0003702,
"torino": null
},
{
"date": "2187-09-25.06",
"energyMt": 1422,
"palermo": -2.31,
"probability": 0.0000709,
"torino": null
}
],
"massKg": 74200000000,
"name": "101955 Bennu (1999 RQ36)",
"notChecked": [
"objects on ESA's NEOCC risk list but not on Sentry",
"close approaches that do not carry an impact possibility (see /body-approaches)",
"…2 more"
],
"observations": 554,
"oneIn": 1749,
"orbitSolutionDate": "2021-07-14 11:24:00",
"palermoBand": "Merits careful monitoring",
"palermoCumulative": -1.4,
"palermoMax": -1.58,
"potentialImpacts": 157,
"reasons": [
"Torino level 0 or unrated: no unusual hazard.",
"Probabilities come from a sample of orbits that fit the observations; more tracking usually lowers them to zero.",
"…1 more"
],
"sentryUpdated": "2026-10-10 15:35:35",
"source": "NASA JPL Solar System Dynamics",
"sourceUrl": "https://ssd-api.jpl.nasa.gov",
"summary": "101955 Bennu (1999 RQ36) is on the Sentry list: cumulative impact probability 0.000572 (about 1 in 1,749), Palermo -1.4 (Merits careful monitoring), Torino 0, 157 possible impact(s).",
"torinoMax": null,
"verdict": "ON_SENTRY_LIST"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"designation": {
"description": "Number or designation, for example 101955 or 29075",
"type": "string"
}
},
"required": [
"designation"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"absoluteMagnitudeH": {
"type": [
"null",
"number"
]
},
"asOf": {
"type": [
"null",
"string"
]
},
"dataArcDays": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"designation": {
"type": [
"null",
"string"
]
},
"diameterKm": {
"type": [
"null",
"number"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"impactEnergyMt": {
"type": [
"null",
"number"
]
},
"impactProbability": {
"type": [
"null",
"number"
]
},
"impactSpeedKmS": {
"type": [
"null",
"number"
]
},
"lastObservation": {
"type": [
"null",
"string"
]
},
"likeliestImpactDates": {
"items": {
"properties": {
"date": {
"type": [
"null",
"string"
]
},
"energyMt": {
"type": [
"null",
"number"
]
},
"palermo": {
"type": [
"null",
"number"
]
},
"probability": {
"type": [
"null",
"number"
]
},
"torino": {}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"massKg": {
"type": [
"null",
"number"
]
},
"name": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"observations": {
"type": [
"null",
"number"
]
},
"oneIn": {
"type": [
"null",
"number"
]
},
"orbitSolutionDate": {
"type": [
"null",
"string"
]
},
"palermoBand": {
"type": [
"null",
"string"
]
},
"palermoCumulative": {
"type": [
"null",
"number"
]
},
"palermoMax": {
"type": [
"null",
"number"
]
},
"potentialImpacts": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"sentryUpdated": {
"type": [
"null",
"string"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"torinoMax": {},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-02T04:04:55.027Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-02T04:04:54.868Z"
},
"resource": "https://space-objects.x402tookit.com/impact-risk-object",
"serviceName": "Space Objects",
"tags": [
"asteroid",
"impact",
"sentry",
"risk",
"nasa"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Is this asteroid on the JPL Sentry impact-risk list? Probability, Palermo and Torino levels, size and likeliest impact dates."
}What the leaf hashes
{"body":"8e902612c666e42f3b4659cc04979ddcf6884a4ed578a93e5547b0e5aadec95b","id":2201361,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646804653377,"prev":null,"subject":"x402_bazaar:https://space-objects.x402tookit.com/impact-risk-object","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).
- 0xe3cc702cbcb8e4b46c490e4ec5b3dfa6cb7aa47c40cfcb592eb55e984391a81e
- 0xf19e2089fa680895b4ab84d6be53b0969c658da79c1e46c876e2d61cf2aa443a
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- 0x26b0167c5a1b827ecb53f6b83eb5eec5c46576ef5878f3a2afdbe6f0bb6c83b5
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- 0xe49b0de3b5536da8c619351935d0b71263897c94385a3ee7052d9527fc4365c5
- 0xe867b5a7de6bbf70d1daf7f7277182252592fcdb2ed73b59398df89b38cd6810
- 0x7104cfa1697ea38a3b9530ddf5069cb853c8d336e5a712008c5ec14ba75ddcf3
- 0xcf683a89b770dc52c071f35400ee5710fb606d9fabe70e32fa7432d8fca732b4
- 0x5c9be338678c5f20e9141e4b4213baa51419ff68f4fd55126839956d9b71fc19
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- 0x5dd9fbf811b05f3e5af51f812b6eea86a039a192f115aecc0fd37a502e3a04f1
- 0x3e441d3f53c7b69d6c73ef93d327dfc3071a522c550856540832b34fcb531738
- 0xd643f764eee39146411d4bff8903a327f4f8f55616e14e57281a245206d6ed2b
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- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af