addrbookFor publishers
← The evidence ledger

Evidence row 118959

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://quantum.halowerk.com/v1/random-number
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
a1bd5401ade1d30941702c2e9b63f9a45aadc977285634cf9cad4ef5eddc0cff
Leaf
0x5384f66c322a4bd21d43e610b27a74612e75767a2ee4d6bb6caf08652c062a96

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://quantum.halowerk.com/v1/random-number"
    ]
  ],
  "name": "HALOWERK quantumwerk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "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": "Counts zeros, ones and runs, reports a normalized monobit imbalance, and compares observed runs with the IID Bernoulli expectation. It generates no random number and is not a NIST test-suite replacement, entropy estimate or certification of cryptographic randomness.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "bodyType": "json",
            "exampleUrl": "https://quantum.halowerk.com/v1/random-number/schema#/requestExample",
            "method": "POST",
            "schemaUrl": "https://quantum.halowerk.com/v1/random-number/schema#/inputSchema",
            "type": "http"
          },
          "output": {
            "example": {
              "bit_count": 32,
              "iid_expected_runs": 17,
              "limitation": "diagnostics_only_not_entropy_or_cryptographic_randomness_certification",
              "method": "supplied-bitstream monobit frequency and transition-runs diagnostics",
              "monobit_normalized_imbalance": 0,
              "one_fraction": 0.5,
              "ones": 16,
              "runs": 23,
              "runs_minus_expected": 6,
              "zeros": 16
            },
            "exampleUrl": "https://quantum.halowerk.com/v1/random-number/schema#/outputExample",
            "schemaUrl": "https://quantum.halowerk.com/v1/random-number/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": "2026-10-26T00:14:26.448Z",
    "quality": {
      "l30DaysTotalCalls": 11,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-26T00:14:26.256Z"
    },
    "resource": "https://quantum.halowerk.com/v1/random-number",
    "serviceName": "HALOWERK quantumwerk",
    "tags": [
      "iot",
      "randomness",
      "statistics"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Counts zeros, ones and runs, reports a normalized monobit imbalance, and compares observed runs with the IID Bernoulli expectation. It generates no random number and is not a NIST test-suite replacement, entropy estimate or certification of cryptographic randomness."
}

What the leaf hashes

{"body":"a1bd5401ade1d30941702c2e9b63f9a45aadc977285634cf9cad4ef5eddc0cff","id":118959,"kind":"listing","method":"baseline/1","observed_us":1793025614061931,"prev":null,"subject":"x402_bazaar:https://quantum.halowerk.com/v1/random-number","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).

  1. 0x5384f3b4dafbfc6b98c5359d6276030de1bf06a1f18fc77c6cfd218f152bbd15
  2. 0x18f469291e71f8387d411bddbbb3d8716a78691955929c0fa77965150fb5a422
  3. 0xd1817a39c1c1478b74123ac9e344e74bd25ffa87c5537221c5ff74589beef329
  4. 0xcb9835cebe67a3e62fff1fb3a8c73afd77f7a60653259ce9a72a3b1534b8c960
  5. 0x655daba2cee391b7c10d1d43fe1ee59c0249466f78aa04f5d2619f43fd88e57d
  6. 0xfe3efc906b76b649aac5ab68bd71a9b7e284a88cf23d4850482da9c7c8bc4a93
  7. 0xb1ed47d584960ba155275beef1d436ecdab69c8d35daa132f7f05308d71843c5
  8. 0x94149dd6ae3319d24d1e65a2d96add71789797bb55b2d8b37549ba8312377315
  9. 0x175a5f6751c4851108026bd2210212cb5527a0d7ba55dcee44a8906a28ccc808
  10. 0xd9bbd72a69ca0e31e79dc40e77b469d8ab4afe2636f7905d8e4bb75b111f8a4b
  11. 0xa1d1c99aa28ad1dadb7dae5386ee0342e06cf642d29909897d3feca675a6d839
  12. 0x774d66905c34a786c6d34bf1c4491dbdb08f534c9eb5f76cf3de03385d28f388
  13. 0xd830c52e1e8095e014510110592485afcb02b9c9a36f85653e4891a8de941246
  14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
  15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
  16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON