A Proposed Architecture for The Indonesia’s National Blockchain

The rapid growth of digital systems and the increasing demand for secure and reliable identity management have driven the need for a robust blockchain architecture specifically designed for Indonesia’s national identity management system, known as IDNat-Blockchain. This research paper proposes a blockchain architecture that addresses the unique challenge faced by Indonesia in managing its vast population and diverse digital economy. The design incorporates multiple layers, including the hardware/infrastructure layer, network layer, consensus layer, and application layer, to ensure a secure, scalable, and interoperable system. This research paper focuses on the design and implementation of a robust blockchain architecture specifically tailored for IDNat-Blockchain, the Indonesia’s National Blockchain system. Our research found that the best-fit network for IDNat-Blockchain is private network, consortium network for IDGov-Blockchain and IDVII-Blockchain, and hybrid network for IDPub-Blockchain. We also found that Proof of Authority (PoA) combined with Practical Byzantine Fault Tolerance (PBFT) for IDNat-Blockchain, IDGov-Blockchain, IDVII-Blockchain, and IDPub-Blockchain. Layer 0 would fit to IDNat-Blockchain, Layer 1 for IDGov-Blockchain, Layer 1 combined with Layer 2 for IDVII-Blockchain, and Layer 1, Layer 2, and Layer 3 combination for IDPub-Blockchain. The choices highlight its security, decentralization, scalability, energy consumption, complexity, efficiency, transparency, cost, user, immutability, and speed consideration.