← The evidence ledger
Evidence row 2201174
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://time-series-calc.x402tookit.com/outliers
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 0da811384c0645b711b88a0c3a044822b40e403b8d3a5c17a65ea9735d27b637
- Leaf
- 0x6840d8607ecbe3bb6d6fed29dc98b083776faaf9860b78d714f7a096a1983555
What was observed
{
"endpoints": [
[
"x402",
"https://time-series-calc.x402tookit.com/outliers"
]
],
"name": "Time Series Calculators",
"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": "Flag outliers in a list of numbers by z-score, Tukey IQR fences and the MAD modified z-score (3.5 rule).",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"values": "1,2,3,4,5,6,7,8,9,100"
},
"type": "http"
},
"output": {
"example": {
"anyMethodFlaggedPositions": [
10
],
"asOf": "2026-10-21T06:18:23.456Z",
"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.",
"iqr": {
"flaggedPositions": [
10
],
"flaggedValues": [
100
],
"iqr": 4.5,
"lowerFence": -3.5,
"multiplier": 1.5,
"q1": 3.25,
"q3": 7.75,
"upperFence": 14.5
},
"mad": {
"flaggedPositions": [
10
],
"flaggedValues": [
100
],
"formula": "modified z = 0.6745 (x - median) / MAD",
"limit": 3.5,
"mad": 2.5,
"median": 5.5,
"modifiedZ": [
-1.2141,
-0.9443
]
},
"method": "all",
"n": 10,
"notChecked": [
"whether a flagged value is an error or a real event",
"seasonality or trend (a normal seasonal peak can look like an outlier)",
"…1 more"
],
"reasons": [
"z-score: |x - mean| / sample sd above 3. With n points the largest possible |z| is (n-1)/sqrt(n) = 2.846, so small samples cannot reach large limits.",
"IQR fences: quartiles by linear interpolation (type 7); flag below Q1 - 1.5 IQR or above Q3 + 1.5 IQR.",
"…1 more"
],
"source": "computed locally (z-score; Tukey 1977 fences; Iglewicz and Hoaglin 1993 modified z-score)",
"summary": "1 of 10 values flagged by at least one method (positions 10).",
"verdict": "OUTLIERS_FLAGGED",
"zscore": {
"flaggedPositions": [],
"flaggedValues": [],
"limit": 3,
"mean": 14.5,
"sampleSd": 30.1523907,
"zScores": [
-0.447726,
-0.414561
]
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"iqrMultiplier": {
"description": "Fence width in IQRs (default 1.5; 3 for extreme outliers)",
"type": "number"
},
"madLimit": {
"description": "Flag |modified z| above this (default 3.5, Iglewicz and Hoaglin)",
"type": "number"
},
"method": {
"description": "all, zscore, iqr or mad (default all)",
"type": "string"
},
"values": {
"description": "Comma-separated numbers (4 to 500), any one unit",
"type": "string"
},
"zLimit": {
"description": "Flag |z| above this many standard deviations (default 3)",
"type": "number"
}
},
"required": [
"values"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"anyMethodFlaggedPositions": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
},
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"iqr": {
"properties": {
"flaggedPositions": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
},
"flaggedValues": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
},
"iqr": {
"type": [
"null",
"number"
]
},
"lowerFence": {
"type": [
"null",
"number"
]
},
"multiplier": {
"type": [
"null",
"number"
]
},
"q1": {
"type": [
"null",
"number"
]
},
"q3": {
"type": [
"null",
"number"
]
},
"upperFence": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"mad": {
"properties": {
"flaggedPositions": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
},
"flaggedValues": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
},
"formula": {
"type": [
"null",
"string"
]
},
"limit": {
"type": [
"null",
"number"
]
},
"mad": {
"type": [
"null",
"number"
]
},
"median": {
"type": [
"null",
"number"
]
},
"modifiedZ": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
}
},
"type": [
"null",
"object"
]
},
"method": {
"type": [
"null",
"string"
]
},
"n": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"zscore": {
"properties": {
"flaggedPositions": {
"type": [
"array",
"null"
]
},
"flaggedValues": {
"type": [
"array",
"null"
]
},
"limit": {
"type": [
"null",
"number"
]
},
"mean": {
"type": [
"null",
"number"
]
},
"sampleSd": {
"type": [
"null",
"number"
]
},
"zScores": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
}
},
"type": [
"null",
"object"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-02T04:09:53.494Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-02T04:09:53.355Z"
},
"resource": "https://time-series-calc.x402tookit.com/outliers",
"serviceName": "Time Series Calculators",
"tags": [
"outliers",
"anomaly",
"z-score",
"iqr"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Flag outliers in a list of numbers by z-score, Tukey IQR fences and the MAD modified z-score (3.5 rule)."
}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
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- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af