{
  "commit_sha": "main",
  "timestamp": "2024-01-01T00:00:00Z",
  "pdftract_geomean": 10.0,
  "pdfminer_geomean": 100.0,
  "pypdf_geomean": 120.0,
  "pdfplumber_geomean": 150.0,
  "grep_1000_mean_ms": 50.0,
  "corpus_size": 50,
  "notes": "Placeholder baseline for Phase 0.7. Will be populated with actual values once pdftract binary is available."
}