Sovereign AI Reference Architecture Integrated Overview Diagram (English Version)

This record provides the official English version of the *Sovereign AI Reference Architecture – Integrated Overview Diagram*.

This diagram represents a structural blueprint for Sovereign AI, illustrating the integration of philosophy, institutions, economy, law, and technical implementation across temporal phases (Past, Present, Future).

The original Japanese version of this blueprint has been published separately and serves as the authoritative first-language conceptual source (Zenodo record 18520362).  
This English edition corresponds to the Japanese original version published under Zenodo record 18520362.

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### Figure 1. Sovereign AI Reference Architecture – Integrated Overview Diagram

This diagram presents the *Sovereign AI Reference Architecture*, an integrated blueprint designed to address the structural collapse of accountability in modern civilization.  
It visualizes the interaction between philosophy, institutional systems, economic structures, and technical implementation across three temporal phases: Past, Present, and Future.

The vertical axis represents architectural layers—*Why* (principles and civilizational philosophy), *Rule/Money* (institutions, economy, and law), and *How* (technical implementation).  
The horizontal axis represents temporal evolution, illustrating how legacy constraints, present integration mechanisms, and future system expansion interrelate.

At the core of the architecture lies the *Institutional Integration Core*, which embeds accountability, explainability, and sovereignty into AI systems by design through legal frameworks, internal controls, auditing mechanisms, and contractual structures.  
Rather than assigning responsibility to individuals, this architecture implements responsibility at the system level.

The diagram further introduces the concept of a *Civilization OS*, a long-term framework that integrates technology, institutions, and language to enable sovereign, sustainable AI infrastructures.  
In the future phase, *Autonomous System Expansion* demonstrates how AI agents and domestically developed large language models can evolve in a controlled manner while remaining fully aligned with institutional and legal requirements.

This blueprint serves as a foundational reference for policymakers, system architects, and researchers seeking to design AI infrastructures that preserve accountability, sovereignty, and long-term societal stability.