Blockchain Technology for Public Services: A Polycentric Governance Synthesis

National governments are increasingly adopting blockchain to enhance transparency, trust, and efficiency in public service delivery. However, evidence on how these technologies are governed across national contexts remains fragmented and overly focused on technical features. Using Polycentric Governance Theory, this study conducts a systematic review of peer-reviewed research published between 2021 and 2025 to examine blockchain-enabled public services and the institutional, organizational, and information-management factors shaping their adoption. Following PRISMA guidelines, we synthesize findings from major digital government and information systems databases to identify key application domains, including digital identity, electronic voting, procurement, and social services, and analyze the governance arrangements underpinning these initiatives. Our analysis reveals that blockchain adoption is embedded within polycentric environments characterized by distributed authority, inter-organizational coordination, and layered accountability. Rather than adopting full decentralization, governments typically utilize hybrid and permissioned designs that allow for selective decentralization alongside centralized oversight, a pattern we conceptualize as “controlled polycentricity.” By reframing blockchain as a governance infrastructure that encodes rules for coordination and information-sharing, this study advances digital government theory beyond simple adoption metrics. The findings offer theoretically grounded insights for researchers and practical guidance for policymakers seeking to design and scale sustainable blockchain-enabled public services.

💡 Research Summary

The paper investigates how national governments are adopting blockchain technology for public‑service delivery and how those initiatives are governed. Using Polycentric Governance Theory as a conceptual lens, the authors conduct a systematic literature review of peer‑reviewed articles published between 2021 and 2025. Following PRISMA guidelines, they searched major digital‑government and information‑systems databases (IEEE Xplore, SpringerLink, ACM Digital Library, ScienceDirect, etc.), screened 276 records, removed duplicates, and applied four inclusion and four exclusion criteria. After two rounds of independent screening, 50 high‑quality studies remained for analysis.

The review identifies five dominant application domains: digital identity, electronic voting, e‑procurement, social‑welfare services, and interoperable administrative systems. Across these domains, blockchain is positioned not merely as a technical add‑on but as a “governance infrastructure” that encodes coordination rules, accountability mechanisms, and information‑sharing protocols.

A central theoretical contribution is the introduction of “controlled polycentricity.” The authors find that governments rarely adopt fully decentralized (public) blockchains. Instead, they favor permissioned or hybrid architectures that combine distributed validation among multiple agencies with a central authority that retains oversight, regulatory control, and final dispute resolution. This design mirrors the core tenets of polycentric governance: multiple semi‑autonomous decision centers operating under overlapping jurisdictions, coordinated through shared standards and mutual monitoring.

Key governance patterns emerging from the literature include: (1) multi‑agency steering committees that define blockchain standards and policies; (2) joint development of smart‑contract templates that reflect legal and regulatory requirements; (3) layered accountability where auditors and legislative bodies can audit the immutable ledger while operational nodes perform consensus; and (4) phased pilots that allow learning and adaptation before national rollout.

Success factors highlighted are: alignment with existing legal frameworks, strong technical capacity within ministries, stakeholder trust (especially citizen trust in data privacy), and incremental, evidence‑based scaling. Conversely, barriers include regulatory uncertainty, data‑sovereignty disputes, lack of interoperable standards, cultural resistance within bureaucracies, and high upfront costs for infrastructure and skill development.

Geographically, the reviewed studies are concentrated in Europe and Asia, indicating a research and implementation bias; Africa, Oceania, and South America are under‑represented, suggesting possible adoption gaps.

The paper advances digital‑government theory by moving beyond simple adoption metrics to a nuanced view of blockchain as a rule‑encoding layer that reshapes institutional arrangements, inter‑organizational coordination, and accountability structures. It offers policymakers a conceptual toolkit for designing blockchain‑enabled services that balance decentralization benefits with the need for centralized oversight. The authors call for future empirical work that measures performance outcomes (e.g., cost savings, transparency gains) and longitudinal studies that track the evolution of polycentric governance arrangements as blockchain systems mature.