The Sovereign Spine: A New Theory of Institutional Coherence and Agency

How institutions stay aligned without central control. How can large organisations remain coherent without becoming rigid? This paper introduces Distributed Coherence: alignment as an emergent property maintained across decision systems rather than enforced from the top. By connecting architecture, measurement, and governance, it explains how institutions preserve intent while enabling distributed decision-making. Coherence becomes a system property—not a command. About the Coherence ProgrammeThe Coherence Programme studies why institutions drift despite appearing aligned. It shows that decisions are made not on intent itself, but on how intent is translated into criteria, metrics, and allocation rules. Using the Operating Spine, the programme traces how purpose becomes action across governance layers, making drift and coherence directly observable within decision systems. The research applies to public institutions, capital allocation, and AI-mediated environments, where the durability of decision rules determines long-term institutional reliability.Programme citation: Mertens, R. E. U. (2026). The Coherence Programme: A Conceptual Overview and Entry Point to the Research Programme. Resources: Coherence Programme OSF repository and https://thecoherenceprogramme.org Version 1.00: First public release of the Capstone synthesis essay. This manuscript develops the programme’s theoretical integration and research agenda. Empirical methods, measurement approaches, and design frameworks are presented in detail in the preceding programme papers.Version 1.01: Programme Consolidation Update: This version consolidates the manuscript within the unified Coherence Programme structure.Titles, terminology, and internal cross-references have been harmonised across the series to stabilise the programme’s core constructs: Translation Drift (mechanism) Translation Coherence (metric) Interpretive Maintenance (governance function) Distributed Coherence (theoretical integration) No changes have been made to the formal architecture, boundary conditions, methodological logic, or theoretical claims.The update improves cross-paper traceability, indexing consistency, and conceptual coherence across the programme.Version 1.02: Terminology harmonisation and minor structural refinements to improve consistency across the Coherence Programme. No changes to the theoretical framework, constructs, or research design.Version 1.03: Minor conceptual clarifications, consistency improvements, reviewer-informed refinements, and editorial updates across the programme.