← The evidence ledger
Evidence row 2201919
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://exoplanets-nasa.x402tookit.com/discovery-stats
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 29926589f7d5847fd4383e0e4050587620027ab522a60bb2bcb60f29f2779a91
- Leaf
- 0xc50aab559b38b3fbf7e6921a7f07ee5181de83045924d352eb0cec44699e675d
What was observed
{
"endpoints": [
[
"x402",
"https://exoplanets-nasa.x402tookit.com/discovery-stats"
]
],
"name": "NASA Exoplanets",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "30000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "30000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
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"transactionVersions": [
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"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
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"extra": {
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"version": "2"
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"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "30000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Confirmed exoplanet discovery counts by year and by detection method, with totals, the peak year and a cumulative series.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"fromYear": 2010,
"method": "Transit",
"toYear": 2025
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T08:48:41.198Z",
"byMethod": [
{
"count": 4447,
"method": "Transit",
"percent": 100
}
],
"byYear": [
{
"count": 46,
"cumulative": 46,
"year": 2010
},
{
"count": 80,
"cumulative": 126,
"year": 2011
}
],
"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.",
"fromYear": 2010,
"method": "Transit",
"notChecked": [
"planets the archive does not list as confirmed (candidates, such as TESS objects of interest, are not counted)",
"discovery bias: counts reflect which missions and surveys were running, not how common planets are",
"…2 more"
],
"peakCount": 1432,
"peakYear": 2016,
"reasons": [
"Year and method tallies agree.",
"Counts are discoveries credited to the year of publication."
],
"source": "NASA Exoplanet Archive (Caltech/IPAC)",
"sourceUrl": "https://exoplanetarchive.ipac.caltech.edu",
"summary": "4447 confirmed exoplanets discovered 2010 to 2025, Transit only; peak year 2016 with 1432. Top method: Transit (4447, 100%).",
"toYear": 2025,
"total": 4447,
"verdict": "STATS_COMPUTED"
},
"type": "json"
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},
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"type": "string"
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}
},
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},
"byYear": {
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"notChecked": {
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},
"lastUpdated": "2026-11-01T22:53:00.364Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T22:53:00.092Z"
},
"resource": "https://exoplanets-nasa.x402tookit.com/discovery-stats",
"serviceName": "NASA Exoplanets",
"tags": [
"exoplanet",
"nasa",
"statistics",
"discovery",
"astronomy"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Confirmed exoplanet discovery counts by year and by detection method, with totals, the peak year and a cumulative series."
}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