{"L1_core": {"domain": "logistics", "category": "delivery_note", "entity_type": "document"}, "L5_metadata": {"updated": "2026-01-02", "version": "2.0"}, "L2_logistics": {"types": ["standard", "valued", "return"], "elements": {"lines": ["product_ref", "description", "delivered_quantity", "serial_lot_number"], "header": ["delivery_note_number", "issue_date", "order_reference", "carrier"], "logistics": ["origin_address", "destination_address", "transport_mode", "package_count", "gross_net_weight"]}, "function": "proof_of_goods_delivery", "standards": ["UBL 2.1 DespatchAdvice", "Peppol BIS Despatch Advice 3", "EDIFACT DESADV"], "signatures": ["carrier", "receiver_acceptance"]}, "L3_relations": {"generates": ["invoice"], "references": ["order"]}}