{
  "schema": "pg36-ch21-reference-run-v1",
  "release": "1.0-sandbox",
  "executed_at": "2026-07-29T20:10:40Z",
  "run_id": "run_20260729T201040Z_961665aa",
  "backup_label": "20260729-201041F",
  "backup_command_ms": 2085.525583,
  "pgbackrest_check_ms": 598.470833,
  "backup_logical_bytes": 36121841,
  "backup_repository_delta_bytes": 4539288,
  "target_wal_covered": true,
  "restore_copy_ms": 2758.205792,
  "start_to_first_connection_ms": 962.980167,
  "first_connection_in_recovery": true,
  "first_connection_transaction_read_only": true,
  "start_to_promoted_ms": 1318.876208,
  "first_connection_to_promoted_ms": 355.896041,
  "rollback_write_probe": true,
  "base_present": true,
  "keep_present": true,
  "discard_present": false,
  "system_identifier_relation": "matches source",
  "raw_system_identifier_recorded": false,
  "source_timeline": 7,
  "restored_timeline": 8,
  "archive_mode": "off",
  "tcp_listener": false,
  "private_socket_mode": "0700",
  "isolated_postmaster_stopped": true,
  "restore_directory_retained": true,
  "source_members_healthy_after": 3,
  "source_replica_lag_bytes_after": 0,
  "counterexamples_rejected": 14,
  "sandbox_named_pitr": "accepted-with-exceptions",
  "production_ch21_gate": "pending",
  "interpretation": {
    "timings": "small synthetic sandbox observations, not a production RTO SLO",
    "boundary": "one named restore point with forced and checked WAL archival, not worst-case RPO",
    "isolation": "process, path and network isolated on a shared restore host"
  }
}