← The evidence ledger
Evidence row 64331
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://aialign.halowerk.com/v1/bias-audit
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- ab088fed24f2f36e141b6a6452d54d05a7190fbe5825708cce2464f6a78afa25
- Leaf
- 0x2a5c698e21b609abaab067de85c8c36b71217a7875b813aecb1dcb56fef7592d
What was observed
{
"endpoints": [
[
"x402",
"https://aialign.halowerk.com/v1/bias-audit"
]
],
"name": "aialign.halowerk.com/v1/bias-audit",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "4000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"currency": "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",
"recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"scheme": "exact"
}
],
"description": "Calculates each group positive-outcome rate, compares it with an explicit or automatically selected reference group, and reports rate differences and selection-rate ratios. Aggregate disparity metrics do not establish discrimination, fairness, causation or legal compliance and can conceal intersectional or sampling effects.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"groups": [
{
"group_id": "group-a",
"positive_count": 310,
"total_count": 500
},
{
"group_id": "group-b",
"positive_count": 210,
"total_count": 420
},
{
"group_id": "group-c",
"positive_count": 228,
"total_count": 380
}
],
"minimum_selection_rate_ratio": 0.8,
"reference_group_id": "group-a"
},
"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": {
"groups": {
"items": {
"additionalProperties": false,
"properties": {
"group_id": {
"maxLength": 128,
"minLength": 1,
"type": "string"
},
"positive_count": {
"maximum": 1000000000,
"minimum": 0,
"type": "integer"
},
"total_count": {
"maximum": 1000000000,
"minimum": 1,
"type": "integer"
}
},
"required": [
"group_id",
"total_count",
"positive_count"
],
"type": "object"
},
"maxItems": 1000,
"minItems": 2,
"type": "array"
},
"minimum_selection_rate_ratio": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"reference_group_id": {
"maxLength": 128,
"minLength": 1,
"type": "string"
}
},
"required": [
"groups"
],
"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": "2026-10-08T05:40:23.069Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 4,
"lastCalledAt": "2026-10-08T05:40:22.642Z"
},
"resource": "https://aialign.halowerk.com/v1/bias-audit",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Calculates each group positive-outcome rate, compares it with an explicit or automatically selected reference group, and reports rate differences and selection-rate ratios. Aggregate disparity metrics do not establish discrimination, fairness, causation or legal compliance and can conceal intersectional or sampling effects."
}What the leaf hashes
{"body":"ab088fed24f2f36e141b6a6452d54d05a7190fbe5825708cce2464f6a78afa25","id":64331,"kind":"listing","method":"baseline/1","observed_us":1793025456478269,"prev":null,"subject":"x402_bazaar:https://aialign.halowerk.com/v1/bias-audit","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).
- 0x2a5c4825cbc62823bb8f3fd1eee9cdb1837f849a6a93474cbd684ea6e17a6883
- 0x045e284207bb860d4169627fdae4664e6ebb3bd7338fecf1b62dfe343de8a2d0
- 0xe52509b20a7c26239bdafb2038a8cf5d8a69fd812bc81c58b85f29e011792e43
- 0x29d3e5fc62ba13feb4fb7e50ee79a62bd26fcfb0a5a08d513fd0e91c0dd816d2
- 0xba70f30da892600cd407ce215262e04c7f7c226e3b875a86b2cd0da7148838a1
- 0x1c4962d63a44bc4229bd4493e1ed9cf7bbc97a356a1e5d6fb34de6053c308a7d
- 0xbf737d7be3c0b19f8e232ecb1a5cc03a6c328a4f0a782471e499e65e62b81473
- 0x8f40b84f91fe8a6c4db94ccb7d7281028933445a77dc8f12f80be83617c65994
- 0xca02ca171023de6641c0bb624d2ae22d3728f218a6366066c9c6bd3a2ab426b7
- 0x4794af3ce7667b405167c54a941da6ec756bac415e8d990090cc042e6212d8fc
- 0x7b0bb4483af5e03d9f02e715a84d790ec3df1fc57d38f1d1a5ed296a7e822d7f
- 0xeab0020f03650c1a79ed79927ae9d808c59a41295a86d1285582516590c954e6
- 0x16a8fb19a5e4f4535e7cb3fce5c15ecfa188586bb74e347ee71164f8af27dfe1
- 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae