What question did this study set out to answer?

This review aims to analyze how post-quantum transitions affect blockchain architectures across multiple layers.

June 19, 2026TechnologiesOpen Access

Post-Quantum Transition in Blockchain Architectures: A Systematic Review of Cross-Layer Security, Performance, and Governance Constraints

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Systematic review analyzes post-quantum blockchain architecture constraints, emphasizing coordination for resilience.

This review aims to analyze how post-quantum transitions affect blockchain architectures across multiple layers.
Cross-layer system-level analysis of blockchain architectures
Evaluation based on 108 peer-reviewed studies
Focus on the cascading effects of quantum pressures across validation, propagation, and governance.
Payload size for lattice signatures increases from ~65–73 bytes to kilobyte-scale sizes.
Verification overhead rises by 2× to 5× depending on deployment scenarios.
Indicates resilience relies on balancing technical and institutional channels rather than just algorithm strength.

Ishchukova et al. (2026) studied this question.

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