[
  {
    "id": "ghz-ibm-phoenix",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#S6.T2.6.2.7",
    "sourceLocator": "Table 2, ibm_phoenix, Y(N*)",
    "reviewedAt": "2026-11-11",
    "workflow": "main",
    "device": "ibm_phoenix",
    "productRevision": "Nighthawk r2",
    "organizationId": "organization-001",
    "task": "GHZ state preparation",
    "taskSize": 27,
    "experimentDate": "2026-09-03",
    "measurement": {
      "representation": "point",
      "rawText": "0.438",
      "decimalValue": "0.438",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": 2952,
      "uncertaintyMethod": "Authors’ finite-sample bound: absolute error 0.10 at 90% confidence"
    },
    "compilation": "Qiskit optimization level 3",
    "qubitSelection": "Qiskit noise-aware layout",
    "mitigation": "No twirling, resilience or dynamical decoupling",
    "shotPolicy": "One shot per sampled stabilizer",
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      16,
      23,
      27,
      28,
      29
    ],
    "passingSize": 27,
    "pointThresholdBoundary": "23–26",
    "certificationBoundary": "16–22",
    "limitation": "One execution per tested size. The boundary comes from the tested search path.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-ibm-basquecountry",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#S6.T2.6.3.7",
    "sourceLocator": "Table 2, ibm_basquecountry, Y(N*)",
    "reviewedAt": "2026-11-11",
    "workflow": "main",
    "device": "ibm_basquecountry",
    "productRevision": "Heron r2",
    "organizationId": "organization-001",
    "task": "GHZ state preparation",
    "taskSize": 24,
    "experimentDate": "2026-07-14",
    "measurement": {
      "representation": "point",
      "rawText": "0.430",
      "decimalValue": "0.430",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": 2952,
      "uncertaintyMethod": "Authors’ finite-sample bound: absolute error 0.10 at 90% confidence"
    },
    "compilation": "Qiskit optimization level 3",
    "qubitSelection": "Qiskit noise-aware layout",
    "mitigation": "No twirling, resilience or dynamical decoupling",
    "shotPolicy": "One shot per sampled stabilizer",
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      16,
      23,
      24,
      25,
      27
    ],
    "passingSize": 24,
    "pointThresholdBoundary": "16–22",
    "certificationBoundary": "16–22",
    "limitation": "One execution per tested size. The boundary comes from the tested search path.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-ibm-pittsburgh",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#S6.T2.6.4.7",
    "sourceLocator": "Table 2, ibm_pittsburgh, Y(N*)",
    "reviewedAt": "2026-11-11",
    "workflow": "main",
    "device": "ibm_pittsburgh",
    "productRevision": "Heron r3",
    "organizationId": "organization-001",
    "task": "GHZ state preparation",
    "taskSize": 21,
    "experimentDate": "2026-07-14",
    "measurement": {
      "representation": "point",
      "rawText": "0.510",
      "decimalValue": "0.510",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": 2952,
      "uncertaintyMethod": "Authors’ finite-sample bound: absolute error 0.10 at 90% confidence"
    },
    "compilation": "Qiskit optimization level 3",
    "qubitSelection": "Qiskit noise-aware layout",
    "mitigation": "No twirling, resilience or dynamical decoupling",
    "shotPolicy": "One shot per sampled stabilizer",
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      16,
      19,
      21,
      22,
      23
    ],
    "passingSize": 21,
    "pointThresholdBoundary": "21",
    "certificationBoundary": "<16",
    "limitation": "One execution per tested size. The boundary comes from the tested search path.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-iqm-emerald",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#S6.T2.6.5.7",
    "sourceLocator": "Table 2, iqm_emerald, Y(N*)",
    "reviewedAt": "2026-11-11",
    "workflow": "main",
    "device": "iqm_emerald",
    "productRevision": "Crystal 54",
    "organizationId": "organization-015",
    "task": "GHZ state preparation",
    "taskSize": 20,
    "experimentDate": "2026-07-14",
    "measurement": {
      "representation": "point",
      "rawText": "0.421",
      "decimalValue": "0.421",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": 2952,
      "uncertaintyMethod": "Authors’ finite-sample bound: absolute error 0.10 at 90% confidence"
    },
    "compilation": "Default Braket provider compilation",
    "qubitSelection": "Provider-selected physical qubits",
    "mitigation": "No additional mitigation; provider defaults",
    "shotPolicy": "One shot per sampled stabilizer",
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      16,
      19,
      20,
      21,
      23
    ],
    "passingSize": 20,
    "pointThresholdBoundary": "16–18",
    "certificationBoundary": "<16",
    "limitation": "One execution per tested size. The boundary comes from the tested search path.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-ibm-miami",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#S6.T2.6.6.7",
    "sourceLocator": "Table 2, ibm_miami, Y(N*)",
    "reviewedAt": "2026-11-11",
    "workflow": "main",
    "device": "ibm_miami",
    "productRevision": "Nighthawk r1",
    "organizationId": "organization-001",
    "task": "GHZ state preparation",
    "taskSize": 18,
    "experimentDate": "2026-07-14",
    "measurement": {
      "representation": "point",
      "rawText": "0.423",
      "decimalValue": "0.423",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": 2952,
      "uncertaintyMethod": "Authors’ finite-sample bound: absolute error 0.10 at 90% confidence"
    },
    "compilation": "Qiskit optimization level 3",
    "qubitSelection": "Qiskit noise-aware layout",
    "mitigation": "No twirling, resilience or dynamical decoupling",
    "shotPolicy": "One shot per sampled stabilizer",
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      16,
      17,
      18,
      19,
      23
    ],
    "passingSize": 18,
    "pointThresholdBoundary": "17 (non-monotonic)",
    "certificationBoundary": "<16",
    "limitation": "The hardware was exploratory during this run. Fidelity at N=17 crossed 0.50 after N=16 did not.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-iqm-garnet",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#S6.T2.6.7.7",
    "sourceLocator": "Table 2, iqm_garnet, Y(N*)",
    "reviewedAt": "2026-11-11",
    "workflow": "main",
    "device": "iqm_garnet",
    "productRevision": "Crystal 20",
    "organizationId": "organization-015",
    "task": "GHZ state preparation",
    "taskSize": 13,
    "experimentDate": "2026-07-14",
    "measurement": {
      "representation": "point",
      "rawText": "0.437",
      "decimalValue": "0.437",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": 2952,
      "uncertaintyMethod": "Authors’ finite-sample bound: absolute error 0.10 at 90% confidence"
    },
    "compilation": "Default Braket provider compilation",
    "qubitSelection": "Provider-selected physical qubits",
    "mitigation": "No additional mitigation; provider defaults",
    "shotPolicy": "One shot per sampled stabilizer",
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      8,
      12,
      13,
      14,
      16
    ],
    "passingSize": 13,
    "pointThresholdBoundary": "8–11",
    "certificationBoundary": "8–11",
    "limitation": "One execution per tested size. The boundary comes from the tested search path.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-aqt-ibex-q1",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#S6.T2.6.8.7",
    "sourceLocator": "Table 2, aqt_ibex_q1, Y(N*)",
    "reviewedAt": "2026-11-11",
    "workflow": "main",
    "device": "aqt_ibex_q1",
    "productRevision": "IBEX Q1",
    "organizationId": "organization-034",
    "task": "GHZ state preparation",
    "taskSize": 12,
    "experimentDate": "2026-07-27",
    "measurement": {
      "representation": "point",
      "rawText": "0.711",
      "decimalValue": "0.711",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": 2952,
      "uncertaintyMethod": "Authors’ finite-sample bound: absolute error 0.10 at 90% confidence"
    },
    "compilation": "Default Braket provider compilation",
    "qubitSelection": "Provider-selected physical qubits",
    "mitigation": "No additional mitigation; provider defaults",
    "shotPolicy": "One shot per sampled stabilizer",
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      7,
      10,
      11,
      12
    ],
    "passingSize": 12,
    "pointThresholdBoundary": "≥12 (register limit)",
    "certificationBoundary": "≥12 (register limit)",
    "limitation": "Device register bounds the result. The experiment has no higher tested size.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-rigetti-cepheus",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#S6.T2.6.9.7",
    "sourceLocator": "Table 2, rigetti_cepheus, Y(N*)",
    "reviewedAt": "2026-11-11",
    "workflow": "main",
    "device": "rigetti_cepheus",
    "productRevision": "Cepheus-1-108Q",
    "organizationId": "organization-007",
    "task": "GHZ state preparation",
    "taskSize": 4,
    "experimentDate": "2026-07-11",
    "measurement": {
      "representation": "point",
      "rawText": "0.491",
      "decimalValue": "0.491",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": 2952,
      "uncertaintyMethod": "Authors’ finite-sample bound: absolute error 0.10 at 90% confidence"
    },
    "compilation": "Default Braket provider compilation",
    "qubitSelection": "Provider-selected physical qubits",
    "mitigation": "No additional mitigation; provider defaults",
    "shotPolicy": "First shot per sampled stabilizer retained; 10 shots run",
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      4,
      5,
      6,
      8,
      16
    ],
    "passingSize": 4,
    "pointThresholdBoundary": "<4",
    "certificationBoundary": "<4",
    "limitation": "AWS ran ten shots per stabilizer; only the first informed fidelity. This was the default workflow.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-qmio",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#S6.T2.6.10.7",
    "sourceLocator": "Table 2, qmio, Y(N*)",
    "reviewedAt": "2026-11-11",
    "workflow": "main",
    "device": "qmio",
    "productRevision": null,
    "organizationId": null,
    "task": "GHZ state preparation",
    "taskSize": 3,
    "experimentDate": "2026-07-22",
    "measurement": {
      "representation": "point",
      "rawText": "0.513",
      "decimalValue": "0.513",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": 2952,
      "uncertaintyMethod": "Authors’ finite-sample bound: absolute error 0.10 at 90% confidence"
    },
    "compilation": "Qiskit optimization level 3",
    "qubitSelection": "Qiskit noise-aware layout",
    "mitigation": "No twirling, resilience or dynamical decoupling",
    "shotPolicy": "One shot per sampled stabilizer",
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      3,
      4,
      5,
      8,
      16
    ],
    "passingSize": 3,
    "pointThresholdBoundary": "3",
    "certificationBoundary": "<3",
    "limitation": "Qmio ran N=3 on 22 July. The 4-qubit check on 27 July contributes to the boundary; the precise processor revision is not named.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-rigetti-manual-2",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#A2.T3.2.2.2",
    "sourceLocator": "Appendix B, Table 3, N=2, GHZ fidelity Y",
    "reviewedAt": "2026-11-11",
    "workflow": "manual",
    "device": "rigetti_cepheus",
    "productRevision": "Cepheus-1-108Q",
    "organizationId": "organization-007",
    "task": "GHZ state preparation",
    "taskSize": 2,
    "experimentDate": null,
    "measurement": {
      "representation": "point",
      "rawText": "0.86",
      "decimalValue": "0.86",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": null,
      "uncertaintyMethod": null
    },
    "compilation": "Separate calibration-aware chain experiment",
    "qubitSelection": "Manual chain selected from calibration graph",
    "mitigation": null,
    "shotPolicy": null,
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      2,
      3,
      4,
      8,
      16
    ],
    "passingSize": null,
    "pointThresholdBoundary": null,
    "certificationBoundary": null,
    "limitation": "Appendix B does not give a run date or a separate shot-accounting manifest for this series. Keep this result separate from the main workflow.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-rigetti-manual-3",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#A2.T3.2.3.2",
    "sourceLocator": "Appendix B, Table 3, N=3, GHZ fidelity Y",
    "reviewedAt": "2026-11-11",
    "workflow": "manual",
    "device": "rigetti_cepheus",
    "productRevision": "Cepheus-1-108Q",
    "organizationId": "organization-007",
    "task": "GHZ state preparation",
    "taskSize": 3,
    "experimentDate": null,
    "measurement": {
      "representation": "point",
      "rawText": "0.42",
      "decimalValue": "0.42",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": null,
      "uncertaintyMethod": null
    },
    "compilation": "Separate calibration-aware chain experiment",
    "qubitSelection": "Manual chain selected from calibration graph",
    "mitigation": null,
    "shotPolicy": null,
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      2,
      3,
      4,
      8,
      16
    ],
    "passingSize": null,
    "pointThresholdBoundary": null,
    "certificationBoundary": null,
    "limitation": "Appendix B does not give a run date or a separate shot-accounting manifest for this series. Keep this result separate from the main workflow.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-rigetti-manual-4",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#A2.T3.2.4.2",
    "sourceLocator": "Appendix B, Table 3, N=4, GHZ fidelity Y",
    "reviewedAt": "2026-11-11",
    "workflow": "manual",
    "device": "rigetti_cepheus",
    "productRevision": "Cepheus-1-108Q",
    "organizationId": "organization-007",
    "task": "GHZ state preparation",
    "taskSize": 4,
    "experimentDate": null,
    "measurement": {
      "representation": "point",
      "rawText": "0.33",
      "decimalValue": "0.33",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": null,
      "uncertaintyMethod": null
    },
    "compilation": "Separate calibration-aware chain experiment",
    "qubitSelection": "Manual chain selected from calibration graph",
    "mitigation": null,
    "shotPolicy": null,
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      2,
      3,
      4,
      8,
      16
    ],
    "passingSize": null,
    "pointThresholdBoundary": null,
    "certificationBoundary": null,
    "limitation": "Appendix B does not give a run date or a separate shot-accounting manifest for this series. Keep this result separate from the main workflow.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-rigetti-manual-8",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#A2.T3.2.5.2",
    "sourceLocator": "Appendix B, Table 3, N=8, GHZ fidelity Y",
    "reviewedAt": "2026-11-11",
    "workflow": "manual",
    "device": "rigetti_cepheus",
    "productRevision": "Cepheus-1-108Q",
    "organizationId": "organization-007",
    "task": "GHZ state preparation",
    "taskSize": 8,
    "experimentDate": null,
    "measurement": {
      "representation": "point",
      "rawText": "0.25",
      "decimalValue": "0.25",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": null,
      "uncertaintyMethod": null
    },
    "compilation": "Separate calibration-aware chain experiment",
    "qubitSelection": "Manual chain selected from calibration graph",
    "mitigation": null,
    "shotPolicy": null,
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      2,
      3,
      4,
      8,
      16
    ],
    "passingSize": null,
    "pointThresholdBoundary": null,
    "certificationBoundary": null,
    "limitation": "Appendix B does not give a run date or a separate shot-accounting manifest for this series. Keep this result separate from the main workflow.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  },
  {
    "id": "ghz-rigetti-manual-16",
    "schemaVersion": 1,
    "datasetVersion": "1.0.0",
    "studyFamilyId": "ghz-cross-platform-2611-14114",
    "sourceVersionId": "arxiv:2611.14114v1",
    "sourceUrl": "https://arxiv.org/html/2611.14114v1#A2.T3.2.6.2",
    "sourceLocator": "Appendix B, Table 3, N=16, GHZ fidelity Y",
    "reviewedAt": "2026-11-11",
    "workflow": "manual",
    "device": "rigetti_cepheus",
    "productRevision": "Cepheus-1-108Q",
    "organizationId": "organization-007",
    "task": "GHZ state preparation",
    "taskSize": 16,
    "experimentDate": null,
    "measurement": {
      "representation": "point",
      "rawText": "0.04",
      "decimalValue": "0.04",
      "unit": "fraction",
      "denominator": "Overlap with one ideal GHZ target state",
      "statistic": "Direct fidelity estimator Y, equation 5",
      "sampleCount": null,
      "uncertaintyMethod": null
    },
    "compilation": "Separate calibration-aware chain experiment",
    "qubitSelection": "Manual chain selected from calibration graph",
    "mitigation": null,
    "shotPolicy": null,
    "postselection": {
      "state": "not_reported",
      "locator": "Sections 3.3, 3.4 and 5 or Appendix B",
      "reason": "No separate row-level outcome-dependent postselection statement found."
    },
    "classicalBaseline": {
      "state": "not_applicable",
      "locator": "Section 3.4, equation 5",
      "reason": "The estimator refers to an ideal GHZ target, with no classical performance claim."
    },
    "resourceBoundary": "Fidelity of the reported execution. No matched wall-clock, queue, compilation-cost or pricing measurement.",
    "testedSizes": [
      2,
      3,
      4,
      8,
      16
    ],
    "passingSize": null,
    "pointThresholdBoundary": null,
    "certificationBoundary": null,
    "limitation": "Appendix B does not give a run date or a separate shot-accounting manifest for this series. Keep this result separate from the main workflow.",
    "comparisonDecision": "No approved numeric comparison in this edition."
  }
]