{
  "required_dimensions": [
    "learner_id",
    "competency_id",
    "evidence_id",
    "event_time",
    "evidence_type",
    "context_id",
    "independence_level",
    "quality_state",
    "mastery_state_before",
    "transition_rule_id",
    "mastery_state_after",
    "confidence_band",
    "contradiction_state",
    "staleness_state",
    "review_due",
    "provenance"
  ]
}