A Rootchain-Centric Hierarchical Multichain Architecture for National Blockchain Infrastructures: Design Rationale and Empirical Evaluation for Mid-Sized Nations With Consolidated Digital Governance
This paper proposes, formalizes, and deploys a rootchain-centric hierarchical multichain architecture that powers Vietnam’s national blockchain infrastructure and introduces a dual-gate authorization algorithm that couples W3C Decentralized Identifiers and Verifiable Credentials with on-chain state-proof verification.