Sovereign AI Reference Architecture — Legacy-Inheritance Architecture and Civilization OS Blueprint — (説明責任・主権・再現性を前提とした主権AI基盤設計図)

This record publishes the original reference architecture and conceptual blueprint for a Sovereign AI platform, designed to ensure accountability, legal compliance, reproducibility, and economic rationality. The architecture integrates legacy systems, modern data platforms, and AI governance mechanisms into a unified “Civilization OS” perspective, enabling long-term institutional continuity and explainable AI operations. This work is published as a design reference and initial disclosure (prior art) for research, policy discussion, and system implementation.本資料は、説明責任・法令遵守・主権性・再現性を前提とした主権AI(Sovereign AI)基盤のための、レガシー継承型アーキテクチャおよび文明OS統合設計図の初出公開である。