{
  "profile": "network-owner-checkpoints-v1",
  "passed": true,
  "checkpoints": 5,
  "negative_controls": 4,
  "limitations": "Five stable checkpoints from one real loopback schedule; narrow new Python owner model, not full refinement of driver.py. Responses count prepared status frames; client bytes are separately asserted by the Rust harness. No arbitrary interleavings, queue-full fairness, real I/O faults or crash recovery comparison."
}