{"artifact":{"id":"open_question-443481ba-9c05-4487-b116-0c0aa2703e59","artifact_type":"open_question","entity_ids":"[\"mechanisms\"]","title":"Combination therapy**: Optimal B vitamin combinations?","quality_score":0.5,"created_by":"backfill_open_questions","provenance_chain":"[]","content_hash":"0f46ce3d216459e1ae24f1fe08f11d4c70eed8077bd21b4ffe8595fc1179f8dd","metadata":{"status":"open","_origin":{"url":null,"type":"internal","tracked_at":"2026-04-26T03:27:53.859189"},"field_tag":"mechanisms","source_id":"mechanisms-homocysteine-neurotoxicity","sub_field":"homocysteine-neurotoxicity","source_kind":"wiki","question_hash":"8b43e0b1b980a5695cbcc9c1163c9b9adaf397d2e3b2bc4c63e228c0fa06b3eb","question_text":"Combination therapy**: Optimal B vitamin combinations?","importance_elo":1500,"_schema_version":1,"evidence_summary":"Extracted from wiki page mechanisms-homocysteine-neurotoxicity","tractability_score":0.5,"potential_impact_score":0.5},"created_at":"2026-04-25T20:27:53.859354-07:00","updated_at":"2026-04-25T20:27:53.859354-07:00","version_number":4,"parent_version_id":null,"version_tag":null,"changelog":null,"is_latest":1,"lifecycle_state":"active","superseded_by":null,"deprecated_at":null,"deprecated_reason":null,"dependencies":null,"market_price":0.5,"origin_type":"internal","origin_url":null,"lifecycle_changed_at":"2026-04-25T20:27:53.859354-07:00","citation_count":0,"embed_count":0,"derivation_count":0,"support_count":0,"contradiction_count":0,"total_usage":0.0,"usage_score":0.5,"usage_computed_at":null,"quality_status":null,"contributors":[],"answers_question_ids":null,"deprecated_reason_detail":null,"deprecated_reason_code":null,"commit_sha":null,"commit_submodule":null,"last_mutated_at":"2026-05-16T14:51:34.657673-07:00","disputed_at":null,"gap_id":null,"mission_id":null,"intrinsic_priority":null,"effective_priority":null,"artifact_id":"6e86728b-fec6-423b-9890-34e491d3959f","artifact_dir":null,"primary_filename":null,"accessory_filenames":null,"folder_layout_version":1,"migrated_to_folder_at":null,"hypothesis_id":null,"authorship":{"kind":"human","contributors":[{"role":"author","actor_ref":"backfill_open_questions"}]},"epistemic_tier":"T3_provisional","created_by_agent_id":null},"outgoing_links":[{"target_artifact_id":"wiki-mechanisms-homocysteine-neurotoxicity","link_type":"derives_from","strength":0.9,"evidence":"{\"method\": \"open_question_wiki_crosslink\", \"cycle\": \"artifact-enrichment-2026-04-27\"}"}],"incoming_links":[],"current_artifact_id":"open_question-443481ba-9c05-4487-b116-0c0aa2703e59","is_canonical":true,"supersede_chain":["open_question-443481ba-9c05-4487-b116-0c0aa2703e59"]}