The third IEEE International Conference on Blockchain and Cryptocurrency (ICBC) will be coming to Sydney, Australia in 2021. This flagship blockchain conference of the IEEE Communications Society which experienced significant growth and participation in its first two instalments will bring together experts from academia, industry and government to discuss and develop this growing area of research and practice. The Trusted Networks Lab, with our partners at UNSW, CSIRO, and other institutions, will have a significant role in organising this conference.