dual temporality

Data Bricklaying Diary

Nov 12, 2026 · Backend Development

Utopia Deconstructed: Tracking Knowledge Changes with Dual Temporality and Provenance

This analysis of the open-source Utopia project reveals how it separates raw statements, ontologies, and typed facts to track knowledge changes using dual temporality (business time vs. system time), provenance, and audit trails, enabling queries for both current applicability and historical knowledge states, while highlighting practical deployment considerations.