Complex Network Analysis of the Bitcoin Transaction Network

In this brief, we conduct a complex-network analysis of the Bitcoin transaction network. particular, design new sampling method, namely random walk with flying-back (RWFB), to effective data sampling. We then comprehensive network in terms degree distribution, clustering coefficient, shortest-path length, connected component, centrality, assortativity, and rich-club coefficient. obtain several important observations including small-world phenomenon, multi-center status, preferential attachment, non-rich-club effect current This work brings up an in-depth understanding blockchain offers implications for future directions malicious activity fraud detection cryptocurrency networks.