← The evidence ledger
Evidence row 2201576
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://math-stats.x402tookit.com/stats-describe
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 7e430d32436df73c09ce0f8e8c9908874087432e87a644a7b04595b449476034
- Leaf
- 0x6fb2db0ba7814daa62cbcb9ba69081f54ca801ecfd2fc30025676be50eaea17c
What was observed
{
"endpoints": [
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"x402",
"https://math-stats.x402tookit.com/stats-describe"
]
],
"name": "Math and Statistics",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
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"version": "2"
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"network": "eip155:8453",
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{
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{
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{
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"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
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"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Descriptive statistics for a list of numbers: mean, median, mode, spread, quartiles, outliers, skewness and kurtosis.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"values": "2,4,4,4,5,5,7,9"
},
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"asOf": "2026-10-11T06:26:07.630Z",
"coefficientOfVariationPct": 42.7618,
"count": 8,
"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.",
"excessKurtosisSample": 0.940625,
"iqr": 1.5,
"max": 9,
"mean": 5,
"median": 4.5,
"min": 2,
"modes": [
4
],
"notChecked": [
"whether the data are a sample or the whole population (both spreads are shown)",
"distribution shape beyond skewness and kurtosis",
"…1 more"
],
"outlierFences": {
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"low": 1.75
},
"outliers": [
9
],
"q1": 4,
"q3": 5.5,
"range": 7,
"reasons": [
"Quartiles use linear interpolation (Excel QUARTILE.INC, NumPy default).",
"Outliers are values beyond 1.5 times the interquartile range from the quartiles."
],
"sdPopulation": 2,
"sdSample": 2.1380899353,
"skewnessSample": 0.818488,
"source": "computed locally",
"standardErrorMean": 0.755928946018,
"sum": 40,
"summary": "n=8: mean 5, median 4.5, sample SD 2.13809, range 2 to 9; 1 outlier(s) by the 1.5 IQR rule: 9.",
"variancePopulation": 4,
"varianceSample": 4.57142857143,
"verdict": "OUTLIERS_PRESENT"
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"mean": {
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"outlierFences": {
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},
"lastUpdated": "2026-11-01T23:38:10.682Z",
"quality": {
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"lastCalledAt": "2026-11-01T23:38:10.503Z"
},
"resource": "https://math-stats.x402tookit.com/stats-describe",
"serviceName": "Math and Statistics",
"tags": [
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"descriptive",
"outliers"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Descriptive statistics for a list of numbers: mean, median, mode, spread, quartiles, outliers, skewness and kurtosis."
}What the leaf hashes
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- Day root
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- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af