← The evidence ledger
Evidence row 121948
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://stat.halowerk.com/v1/oss-openblas-linear-covariance-pushforward
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- efe44bc98748a424392666f5cf3be6b47d2b7a9955fe93e76baae470283edaab
- Leaf
- 0x1e0cf7b66fc5b9809f19ce7b02df0b7eb7a10d3e5b7119bd56f52bd7aaaedc77
What was observed
{
"endpoints": [
[
"x402",
"https://stat.halowerk.com/v1/oss-openblas-linear-covariance-pushforward"
]
],
"name": "stat.halowerk.com/v1/oss-openblas-linear-covariance-pushforward",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "1500",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"asset": "USDC",
"assetTransferMethod": "eip3009",
"eip712Domain": {
"chainId": 8453,
"name": "USD Coin",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"version": "2"
},
"name": "USD Coin",
"network_name": "Base Mainnet",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"scheme": "exact"
}
],
"description": "Applies the standard affine propagation of uncertainty: the mean goes through the transform and offset, the covariance through the transform on both sides, and the independent noise covariance is added. This is the prediction step of a Kalman filter and the workhorse of any linear error budget.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"covariance": [
[
4,
1
],
[
1,
9
]
],
"mean": [
1,
2
],
"noise_covariance": [
[
1,
0
],
[
0,
4
]
],
"offset": [
1,
0
],
"transform": [
[
1,
2
],
[
-1,
0
]
]
},
"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": {
"covariance": {
"items": {
"items": {
"maximum": 1000000,
"minimum": -1000000,
"type": "number"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"mean": {
"items": {
"maximum": 1000000,
"minimum": -1000000,
"type": "number"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"noise_covariance": {
"items": {
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"minimum": -1000000,
"type": "number"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"offset": {
"items": {
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"minimum": -1000000,
"type": "number"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"transform": {
"items": {
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"type": "number"
},
"maxItems": 128,
"minItems": 1,
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},
"maxItems": 128,
"minItems": 1,
"type": "array"
}
},
"required": [
"mean",
"covariance",
"transform",
"offset",
"noise_covariance"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-23T07:40:59.745Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-23T07:40:59.326Z"
},
"resource": "https://stat.halowerk.com/v1/oss-openblas-linear-covariance-pushforward",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Applies the standard affine propagation of uncertainty: the mean goes through the transform and offset, the covariance through the transform on both sides, and the independent noise covariance is added. This is the prediction step of a Kalman filter and the workhorse of any linear error budget."
}What the leaf hashes
{"body":"efe44bc98748a424392666f5cf3be6b47d2b7a9955fe93e76baae470283edaab","id":121948,"kind":"listing","method":"baseline/1","observed_us":1793025620703678,"prev":null,"subject":"x402_bazaar:https://stat.halowerk.com/v1/oss-openblas-linear-covariance-pushforward","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).
- 0x1e0c7e85c4a0b37be2847c516bdef34dd93ff241483c3de6acc23dabf349754b
- 0xd2cbb86b2a5f781f2aaa2371144e77cd0c0854f88754424fe4090e32d33ee0d7
- 0xb2cc6dfe21733628ddd37e18f6be02f873a8f988dd376a7d4720c86c9a2845b3
- 0x042a4c55bcb68456b0d57f2284c679ee8fa233d27f305a06b335b5f84be83a05
- 0xdd5ec0d3b1c227b760b9484c855eb80429e107780b8d5fe16186cd8358e50625
- 0x3171224b6ac459ddb308689faeb68dac9f79b0f2411600d3dc03939119f73403
- 0x66d5155a9e66a8fe41afe82db1980b0c55eef646652d428e96234088a670a66c
- 0xce9b7e4bdc738c6d62f33f45370fd61aac9fb9489d5121e97313de863e8b5047
- 0x39b8e29865fbd92f41416dc25108934c5310755d093e4bda1b3dbd6b131aaf6a
- 0x25369e64d1405d0c4e7fe9646ccf55bf37eedc440887efa43e03c57f5c2a6707
- 0xf0f77ed1d484625ddaf2f6e58baa64c9dec47a22b1a6beb91219a17bddac7dfa
- 0x8e3531af6dd328ff9a174dd19751228f67fa0773c68a89edf859dffbd7b098c3
- 0x42b0d9d5b53af5b0fe99cee10ce29fe484db78b92ce49f97190cc6d098651d47
- 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae