Verifiable and Efficient Semantic Blockchain

Abstract

Semantic communication constructs a promising and lightweight paradigm for participants to transmit semantic information to each other. However, it suffers from untrust among participants, insecure transmission, and underestimation of the value of semantic information. Blockchain is a decentralized peer-to-peer network that can provide participants with transparent, secure, and trusting environments to implement data sharing. The integration of blockchain and semantic communication is considered a promising paradigm for overcoming the above challenges. However, a unified integration framework has not been studied. Thus, in this article, we first propose a novel blockchain and semantic ecosystems-based framework to share semantic information. We also design the proof of semantic mechanism to solve the garbage-in garbage-out challenge of blockchain. Moreover, we construct a state channel and task-relevant information bottleneck approach-based semantic sharing mechanism to improve the efficiency of semantic sharing. Simulation results show that the proposed mechanisms are verifiable and efficient, and perform better than the compared methods.