Accelerating block propagation in PoW blockchain networks with pipelining and chunking

Blockchain is an open, verifiable, and distributed consensus of transactions among different parties, relying on P2P technology for connectivity between nodes. However, the long time of block propagation limits inceptions of another consensus. We propose a novel method that accelerates block propagation in PoW blockchain networks by pipelining message transaction and verifications in parallel over a network with chunks of a block (PiChu). We have conducted extensive evaluations to present the significance of the network pipelining with many parallel chunk connections. Various simulation results exhibit that the proposed method achieves significantly less latency of block propagation than traditional method as the size of a P2P network increases.