A Quantum Walk-Enabled Blockchain with Weighted Quantum Voting Consensus

• URL: http://arxiv.org/abs/2510.07874v2
• Date: Sun, 12 Oct 2025 04:33:31 GMT
• Title: A Quantum Walk-Enabled Blockchain with Weighted Quantum Voting Consensus
• Authors: Chong-Qiang Ye, Heng-Ji Li, Jian Li, Xiao-Yu Chen,
• Abstract summary: This work proposes a novel quantum blockchain framework based on quantum walks.<n>We propose a quantum consensus mechanism based on a weighted quantum voting protocol.<n>Compared with existing entanglement-dependent approaches, our framework achieves stronger stability and enables simpler verification of block integrity.
• Score: 7.048887159038287
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum blockchains provide inherent resilience against quantum adversaries and represent a promising alternative to classical blockchain systems in the quantum era. However, existing quantum blockchain architectures largely depend on entanglement to maintain inter-block connections, facing challenges in stability, consensus efficiency, and system verification. To address these issues, this work proposes a novel quantum blockchain framework based on quantum walks, which reduces reliance on entanglement while improving stability and connection efficiency. We further propose a quantum consensus mechanism based on a weighted quantum voting protocol, which enables a fairer voting process while reflecting the weights of different nodes. To validate the proposed framework, we conduct circuit simulations to evaluate the correctness and effectiveness of both the quantum walk-based block construction and the quantum voting consensus mechanism. Compared with existing entanglement-dependent approaches, our framework achieves stronger stability and enables simpler verification of block integrity, making it a practical candidate for quantum-era blockchain applications.

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