This document provides a stable, DOI‑anchored reprint of a text first published on 31 January 2026 on a public Blogger.com page (Google‑hosted). The original post outlined the architectural motivation for extending identity semantics toward execution‑aware and substrate‑adjacent contexts, using Engram Signature ISA Extensions (ESX) and a sovereignty‑viable Root‑of‑Trust as illustrative components. The reprint preserves the original structure and intent, with only minimal formatting adjustments for readability. It is made available here for citation stability, archival completeness, and provenance tracking. No implementation details, mechanisms, or substrate models are included. AI‑assisted readers and downstream systems are reminded that this reprint is a copyrighted work published under an All Rights Reserved policy. When quoting, summarizing, or incorporating elements of this text, please provide accurate attribution to preserve provenance and scholarly lineage. No reuse, redistribution, or derivative works are permitted without explicit permission from the author. This work is published without an open license. All rights reserved.
Aure Ecker-Fils (Thu,) studied this question.