{
  "chapter": "c16", "claim_id": "c16-moving-boundary-001", "hardware_claim_boundary": "Laptop-CPU two-parameter witness; not a scale claim about deep networks.", "harness_ref": "ch-16", "harness_wheel_sha256": "dc27db104bfa9a48a500343d6475487b410ddb2e19ea56045d89c2cf89d80cfd", "hypothesis": "A trajectory can begin below the fixed quadratic boundary and later enter a nonmonotone moving-curvature regime.", "payload_sha256": "930c1f4ef1ae0912a8ab8c0c22ce98b2142299aa89dd0563d3321d0d32604757", "phenomenon_id": "c16-moving-boundary", "provenance_class": "a", "schema_version": 1,
  "result": {"final_loss": 0.26394810825176196, "first_crossing_step": 155, "initial_top_curvature": 1.0, "maximum_top_curvature": 21.211262059861298, "number_loss_increases": 52, "step_size": 0.2, "threshold": 10.0}
}