{"schema_version":"1","generated_at":"2026-07-30T13:45:00.222Z","selection_rule":"latest_complete_manual_portfolio_v1","status":"current","observation":{"observed_at":"2026-07-28T00:36:31.499Z","provider":"perplexity","provider_model":"sonar","question_total":25,"completed":25,"failed":0,"entity_mention_v2":11,"refbase_citation":15,"vocabulary_revision_used":2,"measurement_model":"presence-v2","evaluation_origin":"live_v2"},"caveats":["Discovery Metricsとは別の観測です。","特定のQuestion portfolioとproviderによる観測結果です。","出現・引用・継続的な再現性を保証するものではありません。"]}