{
  "methodology": "CTREM",
  "version": "0.1",
  "unit_of_analysis": "cultural_transformation_event",
  "required_fields": [
    "event_id",
    "recipient_culture",
    "recipient_region",
    "period_start",
    "period_end",
    "domain",
    "source_culture",
    "source_element",
    "source_description",
    "first_contact_evidence",
    "adopted_variant",
    "stabilized_variant",
    "transformation_tags",
    "retained_features",
    "deleted_features",
    "amplified_features",
    "newly_added_features",
    "institutional_context",
    "media_channel",
    "actor_groups",
    "adoption_extent",
    "rejected_alternatives",
    "obsolete_variants",
    "reexport_destinations",
    "confidence_grade",
    "evidence_refs",
    "competing_explanations",
    "normative_claim",
    "notes"
  ],
  "confidence_grade": {
    "A": "primary source / strong peer-reviewed or large reliable dataset",
    "B": "multiple reliable secondary sources",
    "C": "exploratory evidence",
    "D": "unverified impression; search lead only"
  },
  "transformation_tags": [
    "retention",
    "deletion",
    "amplification",
    "attenuation",
    "recombination",
    "recontextualization",
    "semantic_shift",
    "functional_shift",
    "categorical_reframing",
    "normative_loading",
    "aestheticization",
    "ritualization",
    "institutionalization",
    "commercialization",
    "localization",
    "hybridization",
    "re_export",
    "rejection",
    "extinction"
  ]
}