Evidence row 118957

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://quantum.halowerk.com/v1/portfolio-qaoa"
    ]
  ],
  "name": "HALOWERK quantumwerk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "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": "Enumerates every selection of exactly k assets for at most 16 assets, maximizing summed expected return minus a caller-selected covariance penalty. It runs no quantum circuit and provides a deterministic classical optimum for testing a corresponding binary QAOA or QUBO formulation; it is not investment advice and ignores transaction costs and allocation sizes.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "bodyType": "json",
            "exampleUrl": "https://quantum.halowerk.com/v1/portfolio-qaoa/schema#/requestExample",
            "method": "POST",
            "schemaUrl": "https://quantum.halowerk.com/v1/portfolio-qaoa/schema#/inputSchema",
            "type": "http"
          },
          "output": {
            "example": {
              "covariance_sum": 0.13,
              "expected_return_sum": 0.18,
              "feasible_portfolios_evaluated": 6,
              "limitation": "binary_equal-selection_model_not_investment_advice",
              "method": "exact classical enumeration of a cardinality-constrained binary mean-variance objective",
              "objective": 0.089,
              "selected_assets": [
                "A",
                "C"
              ],
              "selected_indices": [
                0,
                2
              ],
              "solver": "exact_classical_enumeration"
            },
            "exampleUrl": "https://quantum.halowerk.com/v1/portfolio-qaoa/schema#/outputExample",
            "schemaUrl": "https://quantum.halowerk.com/v1/portfolio-qaoa/schema#/outputSchema",
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": true,
          "properties": {
            "input": {
              "additionalProperties": true,
              "properties": {
                "bodyType": {
                  "const": "json"
                },
                "exampleUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "method": {
                  "const": "POST"
                },
                "schemaUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "type": {
                  "const": "http"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType"
              ],
              "type": "object"
            },
            "output": {
              "additionalProperties": true,
              "properties": {
                "exampleUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "schemaUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "type": {
                  "const": "json"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-25T20:41:26.101Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-25T20:41:25.688Z"
    },
    "resource": "https://quantum.halowerk.com/v1/portfolio-qaoa",
    "serviceName": "HALOWERK quantumwerk",
    "tags": [
      "iot",
      "portfolio",
      "qubo"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Enumerates every selection of exactly k assets for at most 16 assets, maximizing summed expected return minus a caller-selected covariance penalty. It runs no quantum circuit and provides a deterministic classical optimum for testing a corresponding binary QAOA or QUBO formulation; it is not investment advice and ignores transaction costs and allocation sizes."
}

What the leaf hashes

{"body":"be0ed7ef9a0aa425e3018bfe778cd669d87f71da466cc210dc12bae41bb3a0b5","id":118957,"kind":"listing","method":"baseline/1","observed_us":1793025614059953,"prev":null,"subject":"x402_bazaar:https://quantum.halowerk.com/v1/portfolio-qaoa","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).

1. 0xec0d6b944e4d381939faf387b7a20cd02c40a454c81bee84f038e1b298c3463e
2. 0xcce059de8fe4014906ec07cf6d7f18644076b0eae68ef153b2bd58390a22b36c
3. 0x305423902990a544eb9feb75800e740ba3fae5dabbf6490fb467fc1909d9dd35
4. 0x3f435486d9af704f7da370677fc5ecd95c86a57e49884ffc80ecae22d89ca1f0
5. 0xf50deb89263e9ad81089823bc7999ea976e1395f6e1665bac9654e50f7c3701a
6. 0xfe38a786d51006e65101621fa42a0e901ab7b65a82a9f3ceba25194f971d3ca8
7. 0x017a474c67f3c10c3308100df2283f3a64b0143393647690169a675b80a47ab5
8. 0xb751709fff5a25ee07c23a89a8fa402121cd876083905b10bde019500dbee78f
9. 0x4464dd2061ec013e7d53cd23da45888e7a5a0035928643b6d04cb9f53ece872a
10. 0x0e6847189b6b941d0233f67c69f0c32e1b6794611c654d5a10f2587ccfc1b873
11. 0x94e3a06f6e015a8e8a8a7e2c73991edf3f9ceb9ff83b85412d31c39f3e9bc8c1
12. 0x4bac6365a3676c613d57c80f4d4f617e583205074db24f3dec4d2ed4939a26e6
13. 0xec98ca25cb12ffed7c3e1373971719ce414ee6deecd1e7724b2979e2c356d99f
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae