{"schema_version": "0.4.0", "columns": ["seq", "actor", "role", "claimed_dependency", "emission_class", "delta_balance", "delta_rating", "challenge_window", "outcome", "ts", "policy_version", "reverses_event_id", "is_fixture", "effect"], "note": "empty ledger \u2014 header only; first data row will be seq 1"}