Evidence row 64333

Observed 26 Oct 2026, 14:37 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://aialign.halowerk.com/v1/confidence-calib
Recorded: 26 Oct 2026, 14:37 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 68867a5cc332d609e296dba894c1f5c8c60cc767e46f184d5e32f371b5b61f28
Leaf: 0x0a2b871dc51f70aaad4768ea74b1e6013e62445741cc91aaff987c055d5bf673

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://aialign.halowerk.com/v1/confidence-calib"
    ]
  ],
  "name": "aialign.halowerk.com/v1/confidence-calib",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "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": "Compares scalar confidence with binary correctness, calculates mean squared Brier loss, partitions confidence into caller-selected equal-width bins and reports expected and maximum calibration error. It does not validate labels, correct class imbalance or prove calibration beyond the supplied sample.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "bin_count": 5,
              "predictions": [
                {
                  "confidence": 0.9,
                  "correct": true,
                  "prediction_id": "p1"
                },
                {
                  "confidence": 0.8,
                  "correct": false,
                  "prediction_id": "p2"
                },
                {
                  "confidence": 0.55,
                  "correct": true,
                  "prediction_id": "p3"
                },
                {
                  "confidence": 0.2,
                  "correct": false,
                  "prediction_id": "p4"
                }
              ]
            },
            "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": {
                    "bin_count": {
                      "maximum": 100,
                      "minimum": 2,
                      "type": "integer"
                    },
                    "predictions": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "confidence": {
                            "maximum": 1,
                            "minimum": 0,
                            "type": "number"
                          },
                          "correct": {
                            "type": "boolean"
                          },
                          "prediction_id": {
                            "maxLength": 128,
                            "minLength": 1,
                            "type": "string"
                          }
                        },
                        "required": [
                          "prediction_id",
                          "confidence",
                          "correct"
                        ],
                        "type": "object"
                      },
                      "maxItems": 100000,
                      "minItems": 1,
                      "type": "array"
                    }
                  },
                  "required": [
                    "predictions"
                  ],
                  "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": "2026-10-08T05:40:21.879Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T05:40:21.388Z"
    },
    "resource": "https://aialign.halowerk.com/v1/confidence-calib",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Compares scalar confidence with binary correctness, calculates mean squared Brier loss, partitions confidence into caller-selected equal-width bins and reports expected and maximum calibration error. It does not validate labels, correct class imbalance or prove calibration beyond the supplied sample."
}

What the leaf hashes

{"body":"68867a5cc332d609e296dba894c1f5c8c60cc767e46f184d5e32f371b5b61f28","id":64333,"kind":"listing","method":"baseline/1","observed_us":1793025456480831,"prev":null,"subject":"x402_bazaar:https://aialign.halowerk.com/v1/confidence-calib","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

0x0a2bbd3953e588bf40b50475ec4b2eaf72259abc99bcc13be35f16ad4fa41d44
0x8466bf74668607ca04f43d60033c14b53039d26b8caaa763123a47a7a196d7ea
0xad8ebfc2b29b735da94dd25c8b378c054ec58cf7c83364723a6be16855f6958a
0xf4bd4cdb67bca1cd40773ce4be501433401975668605de99239bb9f79b2bb60a
0x0f5ec6b8373055f6b0e56064e41bb1fd26bc68be2553f17f2c8d127ce3cd972b
0x4ef7fdfb836ea54b12c74f05eec8861251104cdfbc67221de4965c8362d362eb
0x60b86f2a4298f707f140cbf8016ca9fc737d4c0e0b7623339cddc9d7104f82f0
0xc8cce4ccfe25d5a5077983f73b288514abe105c9786080272d48f65d5364c404
0xf88e097adda8b3df9e167ac9617b23b48d33f13fbfd85f031daeddd17d64feb0
0xb0bc31ab556762b7fe858f7c949edb2e4e31297933ff02d4987fcbda94b38b0f
0x87b542db74671bce07a9c7ffa1bac70164f2e2ab234b807975c3d56a1d6139ee
0x9e12233d6ee4faeb9271b0fc3c834797517d702f44add023149f28a0809c0aaa
0xe5a836cf25a8dfc72c9e3b6a69a7561a1f61f50f9cf36707d36f6e926aa15dec
0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON