Appendix HIS | Historical Background of iXUS and Dualbind v2.0

ENAppendix HIS v2.0. A concise historical and conceptual timeline that links DD-U (Dualbind Universe) ontology to physics-facing descriptions, paired with The Dualbind Gravity Model (Paper A v2.0) and The IXUS Protocol 3.2 (Paper B v2.0). It contextualizes the emergence of Koma-based effective geometry and the protocol-driven mapping across layers, and can be read alongside Paper X for integration. For correspondence: laboratory@dualbind.com. License: CC BY 4.0. JA付録 HIS v2.0。DD-U( Dualbind Universe )の存在論を、物理記述へと接続する 歴史・概念タイムライン。The Dualbind Gravity Model( Paper A v2.0 )および The IXUS Protocol 3.2( Paper B v2.0 )と対になり、Koma による有効幾何の成立と、層横断のプロトコル駆動写像を文脈化する。統合読解のために Paper X と併読してもよい。連絡先:laboratory@dualbind.com。ライセンス:CC BY 4.0。