Prevalidated Block for Improving Block Propagation in Blockchain

Blockchain is gaining worldwide acceptance in numerous fields. In contempt of its high-security feature, the current blockchain platform doesn’t provide a good transaction processing rate. Block propagation, the number of transactions processed per second, block transmission traffic, and block validation are the few performance parameters that affect its adoption. Transaction selection and ordering also play a very important role in block propagation. In this paper, we propose to split the block into two parts i.e. body of the block that contains the transactions and the header part of the block. The leader plays the role of selecting transactions from mempool and then orders them. The pre-matching algorithm is implemented to ensure that all of the nodes contain the similar body of the block which performs the pre-validation of the block being shared with all nodes. The block header is computed by the nodes selected by the leader. The final block header is shared with all of the nodes. This results in improving the block processing time, transmission traffic, and propagation time.