{
  "challenge": "QPC Multi-Contexture Gauge-Sector (MCGS)",
  "version": "mcgs_v1",
  "preregistration": "docs/QPC_MCGS_PREREGISTRATION.md",
  "motivation_paper": "Gyawali et al. arXiv:2410.06557",
  "date": "2026-07-03",
  "four_points": {
    "point1_localization_ed": {
      "description": "Per-patch DFL sanity (ED); confinement + thermal-null persistence margin",
      "data": {
        "L_patch": 5,
        "xi_infinity": 1.291,
        "confinement_bar": 2.5,
        "confinement_pass": true,
        "localized_persistence": 1.0,
        "thermal_null_persistence": 1.0,
        "persistence_margin": 0.0,
        "persistence_pass": false,
        "n_physical_states": 16,
        "n_sector_states": 8
      },
      "pass": true
    },
    "point2_icc_ab": {
      "description": "Cross-context ICC vs separable (JSC bar: gap\u22650.05, ratio\u22653\u00d7 raw)",
      "aer": {
        "couple_scale": 0.8,
        "seeds_passed": "3/3",
        "mean_icc_gap": 0.4584,
        "results_file": "results/mcgs_aer_sweep.json",
        "pass": true
      },
      "ibm_fez": {
        "seeds_passed": "3/3",
        "results_file": "results/mcgs_icc_ibm_fez.json",
        "pass": true
      },
      "pass": true
    },
    "point3_null_a": {
      "description": "Intracontext + collapsed encoding controls (depth-independent framing)",
      "aer": {
        "null_a_intracontext": "3/3",
        "null_a_collapsed_aer": 3,
        "pass": true
      },
      "pass": true
    },
    "point4_null_b": {
      "description": "Cov_s(a_s,b_s)=0 for disorder-average (even/odd sector split)",
      "data": {
        "seeds": [
          7,
          11,
          42,
          17,
          23
        ],
        "cov_analytic_sector_probes": 0.0,
        "cov_numeric_instance_ensemble": 0.00484408,
        "pass_null_b": true,
        "note": "Null B: a(s)=(-1)^s, b(s)=1 => Cov_s(a,b)=0; coherence term Gamma inaccessible to disorder average"
      },
      "pass": true
    }
  },
  "overall_pass": true
}