{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://huggingface.co/datasets/egobowwow/universal-annotations/resolve/v1.0.0/schemas/universal-annotation-projection.schema.json",
  "title": "Loss-audited Universal Annotation projection",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema_version", "source_packet_id", "adapter_id", "target_schema_id", "target_record", "coverage", "adapter_digest", "projection_id"],
  "properties": {
    "schema_version": {"const": "1.0.0"},
    "source_packet_id": {"type": "string", "pattern": "^uap:sha256:[0-9a-f]{64}$"},
    "adapter_id": {"type": "string", "minLength": 1},
    "target_schema_id": {"type": "string", "minLength": 1},
    "target_record": {"type": "object"},
    "coverage": {
      "type": "object",
      "additionalProperties": false,
      "required": ["represented_claim_ids", "omitted_claim_ids", "required_missing_fields", "loss_status"],
      "properties": {
        "represented_claim_ids": {"type": "array", "uniqueItems": true, "items": {"type": "string"}},
        "omitted_claim_ids": {"type": "array", "uniqueItems": true, "items": {"type": "string"}},
        "required_missing_fields": {"type": "array", "uniqueItems": true, "items": {"type": "string"}},
        "loss_status": {"enum": ["exact", "lossy", "blocked"]}
      }
    },
    "adapter_digest": {"type": "string", "pattern": "^sha256:[0-9a-f]{64}$"},
    "projection_id": {"type": "string", "pattern": "^uap-projection:sha256:[0-9a-f]{64}$"}
  }
}