RD-PCN: A Secure Role-Differentiated Payment Channel Network for Heterogeneous Nodes

This research paper addresses scalability problems in blockchain payment systems by proposing RD-PCN, a payment channel network (PCN, a system that allows cryptocurrency transactions without recording every transaction on the main blockchain) designed for nodes with different capabilities. The solution uses multi-party payment channels (MPCs, channels that connect multiple users together) and privacy-preserving routing (sending payments through the network while hiding transaction details) to improve payment success rates and fund utilization in real-world blockchain networks.