{
  "stage1_frozen_production_model": {
    "model_name": "Hybrid-Quantum-FeatureAug-LogReg",
    "config_id": "C02_Bandwidth_030_Reps2",
    "selection_basis": "Sole qualifying challenger under preregistered PLAN.md Section 2.2 rule (improved 2-seed mean AP, ROC-AUC, proper Brier, proper LogLoss, and heuristic composite S_v3 across seeds 42 and 1042 on the 300 Stage1_Train rows, plus 7/10 paired outer-fold wins on S_v3, LogLoss, and Brier).",
    "selection_bias_disclaimer": "Selected from 25 configurations (C00 reference + 24 challengers) evaluated on Stage1_Train (300 rows); carries finite-sample selection bias and does not guarantee out-of-sample generalization gain.",
    "quantum_circuit": "qiskit.circuit.library.zz_feature_map(feature_dimension=4, reps=2, entanglement='circular')",
    "angle_encoding": "0.30 * arctan(StandardScaler(PCA(4)(X_enc)))",
    "angle_scale": 0.3,
    "zz_reps": 2,
    "quantum_features": "Top-6 Fidelity KernelPCA components + 10 Pauli Z_i and Z_i Z_j expectation values (16 features total, standardized fold-locally and scaled by w_q=0.35)",
    "quantum_feature_scale_w_q": 0.35,
    "n_kpca_components": 6,
    "classifier_head": "LogisticRegression(C=0.12, penalty='l2', solver='lbfgs', random_state=42)"
  },
  "stage2_frozen_production_solver": {
    "solver": "10-Qubit Number-Conserving B\u00e4rtschi\u2013Eidenbenz Dicke State + Guarded RZ / DiagonalGate + Five-Chord XY-QAOA (p=3, ring_plus_5chords)",
    "dicke_state_preparation": "Deterministic B\u00e4rtschi\u2013Eidenbenz SCS circuit for |D_4^10> followed by X^{otimes 10} complement to prepare |D_6^10> (246 transpiled CX gates, depth 640, fidelity 1.0 vs 1,013 CX / depth 4,845 for generic StatePreparation)",
    "cost_separator_dispatch": "O(N log N) feasibility guard checks sum(6 largest contact_costs) <= C=25 and sum(6 largest capacity_units) <= H=22. Dispatches 1-qubit prod_i RZ(gamma_l * v_i) (0 CX per layer) when proved feasible and noiseless; falls back to exact 10-qubit positive-part penalty DiagonalGate whenever constraints can bind or noise is active.",
    "qaoa_layers_p": 3,
    "mixer_topology": "ring_plus_5chords (15 RXX+RYY pairs per layer: 10 ring edges + 5 opposite-vertex chords; 426 total transpiled CX, depth 741, expected energy -13.1573, optimal shot probability 6.75%)",
    "optimizer": "COBYLA (8 restarts, maxiter=150, seed=42)",
    "shots": 8192
  },
  "stage3_frozen_simulation": {
    "circuit": "6-Qubit Ry(2 * arcsin(sqrt(p_k))) Bernoulli Circuit",
    "shots": 100000,
    "classical_mc_trials": 100000,
    "gate_depolarizing_error_p": 0.02,
    "readout_assignment_error_p": 0.015,
    "analytical_sensitivity_identity": "dP(S >= 3)/dp_i = P(S_{-i} = 2)"
  }
}