{
  "ok": true,
  "api_base_url": "http://127.0.0.1:8009",
  "fixture_policy": "retained unique dev:e2e identities; no fixture deletion",
  "session_id": "e3e07503-7033-41ea-808b-89bab82d86f1",
  "history_id": "31552615-8910-4543-b1e3-540867c15ba4",
  "prediction_revision_id": "f7990785-ee83-4e7b-acde-6810068f5a5e",
  "prediction_lock_id": "9f90a933-b23f-4627-8bae-02782c2cfa39",
  "performance_observation_id": "1ff98bee-41cb-4317-a345-b21b820b818e",
  "proof": {
    "durable_turn_uuid_count": 2,
    "pre_reveal_prediction_recorded": true,
    "same_prediction_retry_stable": true,
    "changed_prediction_retry_rejected": true,
    "prediction_lock_idempotent": true,
    "post_lock_revision_rejected": true,
    "authenticated_external_observation": true,
    "same_observation_retry_stable": true,
    "changed_observation_retry_rejected": true,
    "learner_role_projection": "learner",
    "teacher_role_projection": "supervisor",
    "other_learner_rejected": true,
    "cross_cohort_teacher_rejected": true,
    "no_aggregate_score": true,
    "clinical_claim_allowed": false
  }
}