← The evidence ledger
Evidence row 121947
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://stat.halowerk.com/v1/oss-openblas-dense-minimum-norm-solve
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- b86b41f7923c741654d82e87a564d743236bc8a9e5841618708c42f6c91024ee
- Leaf
- 0x52f0f24df3f6b63d5eee0316d08bbded074cec49976b1088a3711a8a379d8138
What was observed
{
"endpoints": [
[
"x402",
"https://stat.halowerk.com/v1/oss-openblas-dense-minimum-norm-solve"
]
],
"name": "stat.halowerk.com/v1/oss-openblas-dense-minimum-norm-solve",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "2000",
"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": "Solves a bounded dense multi-output least-squares problem and returns the minimum-norm solution together with the diagnostics that say whether it can be trusted: numerical rank, the full singular value spectrum, the rank threshold actually applied, the residual, and the effective condition number. A rank-deficient system still gets an answer here, but it gets one that announces its own deficiency instead of a plausible vector with no warning attached.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"a": [
[
1,
0
],
[
1,
1
],
[
1,
2
]
],
"b": [
[
1
],
[
2
],
[
2
]
],
"error_covariance": null,
"rcond": 1e-12
},
"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": {
"a": {
"items": {
"items": {
"maximum": 1000000,
"minimum": -1000000,
"type": "number"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"b": {
"items": {
"items": {
"maximum": 1000000,
"minimum": -1000000,
"type": "number"
},
"maxItems": 32,
"minItems": 1,
"type": "array"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"error_covariance": {
"anyOf": [
{
"type": "null"
},
{
"items": {
"items": {
"maximum": 1000000,
"minimum": -1000000,
"type": "number"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
},
"maxItems": 128,
"minItems": 1,
"type": "array"
}
]
},
"rcond": {
"maximum": 0.01,
"minimum": 1e-12,
"type": "number"
}
},
"required": [
"a",
"b",
"error_covariance",
"rcond"
],
"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": "2026-10-23T07:35:46.006Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-23T07:35:45.59Z"
},
"resource": "https://stat.halowerk.com/v1/oss-openblas-dense-minimum-norm-solve",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Solves a bounded dense multi-output least-squares problem and returns the minimum-norm solution together with the diagnostics that say whether it can be trusted: numerical rank, the full singular value spectrum, the rank threshold actually applied, the residual, and the effective condition number. A rank-deficient system still gets an answer here, but it gets one that announces its own deficiency instead of a plausible vector with no warning attached."
}What the leaf hashes
{"body":"b86b41f7923c741654d82e87a564d743236bc8a9e5841618708c42f6c91024ee","id":121947,"kind":"listing","method":"baseline/1","observed_us":1793025620702410,"prev":null,"subject":"x402_bazaar:https://stat.halowerk.com/v1/oss-openblas-dense-minimum-norm-solve","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).
- 0x52f1025a28830a2cea599cbd6735e2f99a057caf7f89cbac0abbc23ace486e9b
- 0x575c6652fbb24028a7b430dafd45fc22291052e4ae198d6e716d3ffe9f5f72c0
- 0x57705a507803552aadf08537dca889bcbd0e82499a7ed5a2883263ac2942eb92
- 0x4a7297b39c6c485ebdeb94b2ee3b7d10c2ce4ed77da8bc4ae65206ea194f68ee
- 0xeb09ebb3442b6be2ac8d457bd25987241ef2d3813fae4836ac98f5805696a9fd
- 0x9ac68606d7a5c55b92dc01a95e72f8c52922e26cef8d0839a1b03a03db838106
- 0xc8f295c642d09623e8a4f120a5cc64d8aa6580889c6adc28c41087ecfb6613d4
- 0xec7d82916bd5aef03dcb91178b683d355583c062ae5813e8c2df8b61f907ea92
- 0xe47c706093c519af3f971455b74f1c450f524054e64337cda55a106bf57363e5
- 0x72bd13c090ca80e7870affede013ba3445a9ce90177c8d0abe389b26f526682c
- 0x11ae5fc5d08fb7b25beace35e67656980e21edfc94e809110b5b9ecae306b6c8
- 0x94dd4ed7cf198df741ccda83eacc422aadb31119fc6e84c4a6d2f023453b7960
- 0xd830c52e1e8095e014510110592485afcb02b9c9a36f85653e4891a8de941246
- 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
- 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae