Evidence row 124363

What was observed

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      "x402",
      "https://www.mahastrategies.com/api/v1/compute/quantum/observable-expectations"
    ]
  ],
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  "owner_address": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
  "raw": {
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        "amount": "16003",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
        "scheme": "exact"
      }
    ],
    "description": "Calculate X, Y and Z Pauli expectations for a supplied valid single-qubit density matrix. Returns basis conventions; not a hardware measurement. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.",
    "extensions": {
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              "state": {
                "imag": [
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                  0,
                  0,
                  0
                ],
                "real": [
                  0.5,
                  0.5,
                  0.5,
                  0.5
                ]
              }
            },
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            "method": "POST",
            "type": "http"
          },
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                "limitations": [
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                ],
                "productId": "quantum-observable-expectations",
                "result": {
                  "findings": {
                    "X": 1,
                    "Y": 0,
                    "Z": 0,
                    "convention": "single-qubit computational basis [0,1]; Pauli Y=[[0,-i],[i,0]]"
                  },
                  "limitations": [
                    "Public or synthetic research inputs only; no patient, personal g…"
                  ],
                  "methodVersion": "maha-science50/1.0.0",
                  "numericPrecision": "IEEE754-double; finite outputs rounded to 12 significant digits"
                },
                "resultHash": "sha256:c50e3c570f6e3868297158febde65a8de4fc2c91147e2e110b431cd01…",
                "sourceContractAmount": "16001",
                "version": "maha-legacy-adapter/1"
              },
              "proof": {
                "settlement_id": "0x00000000000000000000000000000000000000000000000000000000000000…"
              },
              "success": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
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              "properties": {
                "body": {
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                  "properties": {
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                      ],
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                    },
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                  },
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                  "type": "object"
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                },
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                  "type": "string"
                },
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                  "type": "string"
                }
              },
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                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
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                  "properties": {
                    "data": {
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                    },
                    "proof": {
                      "type": "object"
                    },
                    "success": {
                      "const": true
                    }
                  },
                  "required": [
                    "success",
                    "data",
                    "proof"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "maha-input-bound-recovery": {
        "info": {
          "automaticRepayment": false,
          "binding": {
            "automaticRepayment": false,
            "inputHash": "sha256: + lowercase HEX(SHA256(RFC8785(strictly parsed input)))",
            "nonce": "0x + lowercase HEX(SHA256(RFC8785({version,productId,inputHash,recoverySecret})))",
            "paymentSignatureHeader": "base64 x402-v2 PaymentPayload with EIP-3009 TransferWithAuthorization",
            "productId": "quantum-observable-expectations",
            "recoverySecret": "32 cryptographically random bytes encoded as 64 lowercase hexadecimal characters; keep private",
            "version": "maha-api-v1/1"
          },
          "complimentaryCorrection": false,
          "inputHashHeader": "X-Maha-Input-Hash",
          "receiptRetentionSeconds": 7776000,
          "retentionSeconds": 86400,
          "secretHeader": "X-Maha-Recovery-Secret",
          "version": "1",
          "withdrawal": "stops-new-purchases; retained-paid-result-remains-recoverable"
        },
        "schema": {
          "type": "object"
        }
      },
      "maha-modular-contract": {
        "info": {
          "contractHash": "sha256:a5495145a21b5c2e3d8f9a2a4bbeb7072d14f9ce6933898631b5c63195549f96",
          "declarationUrl": "https://www.mahastrategies.com/api/v1/discovery/describe?id=quantum-observable-expectations",
          "id": "quantum-observable-expectations",
          "requiresBuyerRecoveryAdapter": true
        },
        "schema": {
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1786099228/bazaar-icons/1a820036513dff1d.png",
    "lastUpdated": "2026-10-14T06:55:10.564Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-14T06:55:10.414Z"
    },
    "resource": "https://www.mahastrategies.com/api/v1/compute/quantum/observable-expectations",
    "serviceName": "Observable expectation values",
    "tags": [
      "compute",
      "quantum",
      "observable-expectations",
      "bounded-computation",
      "evidence"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Calculate X, Y and Z Pauli expectations for a supplied valid single-qubit density matrix. Returns basis conventions; not a hardware measurement. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged."
}

What the leaf hashes

{"body":"731a8db432047edc9eb675146ba9a520eddf5bcc072283590d3f60aefe456675","id":124363,"kind":"listing","method":"baseline/1","observed_us":1793025624526716,"prev":null,"subject":"x402_bazaar:https://www.mahastrategies.com/api/v1/compute/quantum/observable-expectations","subject_kind":"source_record"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.