{
  "id": "O0-CRP-029",
  "title": "Fair-Comparison Robustness Across Extended Observability Regimes (Track 1 R1)",
  "record_class": "REPLICATION",
  "version": "1.0.0",
  "status": "FAIR_COMPARISON_ROBUST",
  "date": "2026-07-28",
  "program": "CONTACT_AND_REVELATION",
  "category": "emergence",
  "preregistration_version": "1.0.0",
  "preregistration_frozen_before_execution": true,
  "evidence_type": "COMPUTATIONAL SIMULATION",
  "replication_status": "INTERNAL",
  "physical_validation": "NONE",
  "source_proposition": "Track 1 followup R1 to O0-CRP-021. Tests whether the fair-comparison finding that VAR beats or ties learned-Kalman across d=8 regimes extends to a wider (d, k) landscape.",
  "parent_study": "O0-CRP-021",
  "related_records": ["O0-CRP-021"],
  "verdict": {
    "label": "FAIR_COMPARISON_ROBUST",
    "n_regimes": 6,
    "regimes_tested": ["(4,1)", "(4,2)", "(4,4)", "(8,4)", "(16,4)", "(16,8)"],
    "B_wins_or_ties_by_horizon": {"1": 6, "5": 6, "20": 6},
    "A_beats_B_by_20pct_cells": 0,
    "positive_control_all_regimes": true
  },
  "key_findings": {
    "unified_representation_wins_or_ties_all": "in all 6 regimes at all 3 horizons (18 cells total), VAR ties or beats learned-Kalman",
    "cross_study_coverage": "combined with O0-CRP-021, coverage is 9 regimes x 3 horizons = 27 cells with 0 cells showing significant advantage for explicit-separation architecture",
    "only_near_tie_case": "(16, 4): heavy partial observation at large d - A' has 8.1% advantage at tau=5, still within tie band",
    "auxiliary_claim_remains_unsupported": "auxiliary O/0 claim about functional separation serving local processing continues to be unsupported at fair comparison"
  },
  "artifacts": {
    "preregistration": "preregistration.md",
    "scientific_record": "scientific_record.md",
    "runner": "src/run_study.py",
    "analyzer": "src/analyze.py",
    "summary": "results/summary.json",
    "raw_trials": "results/raw/trials.jsonl",
    "figures": [
      "figures/01_AL_vs_B_tau1.png",
      "figures/01_AL_vs_B_tau5.png",
      "figures/01_AL_vs_B_tau20.png",
      "figures/02_relative_advantage.png"
    ]
  },
  "reproducibility": {
    "runtime_seconds": 30.5,
    "determinism": "full - fixed seeds throughout",
    "dependencies": ["python 3.10+", "numpy", "scipy"],
    "note": "reuses O0-CRP-021 src via sys.path import"
  },
  "revision_history": [
    {"version": "1.0.0", "date": "2026-07-28", "notes": "Initial scientific record after preregistered execution"}
  ]
}