Blockchain-Based Data Sharing for National Statistics Offices: A Survey and Privacy Governance Evaluated with the Five Safes Framework

Abstract

For national statistics offices (NSOs), data sharing is essential for the production of official statistics, yet it must comply with stringent confidentiality and governance mandates. Blockchain technology has emerged as a promising means to enable trusted and auditable data exchange under these constraints, motivating a growing body of research across public-sector domains. This paper presents an up-to-date survey of blockchain-based data-sharing solutions in government and NSO contexts, reviewing studies published between 2018 and 2026. Given the limited research specific to official statistics, this survey evaluates public-sector solutions with particular attention to their alignment with..