DPLogChain: A Dynamic Packaging LogChain based on Random Witness

The log blockchain utilizes the append-only and tamper-proof characteristics of the blockchain to ensure the consistency and credibility of log data. However, the mismatch between log system and log blockchain in throughput and storage limits the extensive use of log blockchain. This paper proposed DPLogChain, a dynamic packaging log blockchain based on random witness, which randomly packages log data with different granularity according to its security level to match the throughput of both systems and then stores proof data on chain. Meanwhile, the real-time processing avoids the possibility of collusion and tampering between log system and log storage.