← The evidence ledger
Evidence row 73514
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://distribution.openverbs.com/v1/binomial
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c05d58e002243f18e35e288d4bc13320dec3f637826ea774671899a9f3e66786
- Leaf
- 0x26b5ca2a28048ce0751efe4d5a1e53efc5016de3ba49b1f48ec671a053cc6749
What was observed
{
"endpoints": [
[
"x402",
"https://distribution.openverbs.com/v1/binomial"
]
],
"name": "Binomial distribution",
"owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
"raw": {
"accepts": [
{
"amount": "4000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
"scheme": "exact"
}
],
"description": "Binomial distribution with `trials` (n ≥ 0, ≤ 1e6) and success `probability` (0..1). `function` selects the mass (pmf), cumulative distribution (cdf) or quantile / inverse-CDF.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"function": "pmf",
"probability": 1,
"trials": 1,
"x": 1
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"function": {
"enum": [
"pmf",
"cdf",
"quantile"
],
"type": "string"
},
"probability": {
"description": "Success probability per trial.",
"maximum": 1,
"minimum": 0,
"type": "number"
},
"trials": {
"description": "Number of trials n.",
"maximum": 1000000,
"minimum": 0,
"type": "integer"
},
"x": {
"description": "Number of successes k (integer for pmf) for pmf/cdf, or the probability p ∈ (0,1) for quantile.",
"type": "number"
}
},
"required": [
"function",
"x",
"trials",
"probability"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-02T02:02:37.616Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-02T02:02:37.322Z"
},
"resource": "https://distribution.openverbs.com/v1/binomial",
"serviceName": "Binomial distribution",
"tags": [
"binomial distribution",
"binomial pmf",
"binomial cdf",
"binomial quantile",
"success probability model"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Binomial distribution with `trials` (n ≥ 0, ≤ 1e6) and success `probability` (0..1). `function` selects the mass (pmf), cumulative distribution (cdf) or quantile / inverse-CDF."
}What the leaf hashes
{"body":"c05d58e002243f18e35e288d4bc13320dec3f637826ea774671899a9f3e66786","id":73514,"kind":"listing","method":"baseline/1","observed_us":1793025487723066,"prev":null,"subject":"x402_bazaar:https://distribution.openverbs.com/v1/binomial","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
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- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae