DAG-based BFT Protocols

DAG-based BFT protocols have recently been introduced to reduce the communication overhead of tranditional BFT protoocls by enabling concurrent block proposals and decoupling data dissemination from consensus. DAG-based protocols have seen widespread production use. This project aims to explore different aspects of DAG-based BFT protocols to make them more efficient, fair and resilient.

Publications

1. Heena Nagda, Sidharth Sankhe, Sakshi Sinha, Keon Attarha, Mohammad Javad Amiri, Boon Thau Loo. “Dag of dags: Order-fairness made practical.” Proceedings of the ACM on Management of Data (SIGMOD), 2026.

People

Iliya Mirzaei

Zhen Ping Khor

PhD Student, University of Pennsylvania

Heena Nagda

PhD, Penn, 2025 (co-advised with Boon), next: Research Scientist, Meta

Chenyuan Wu

Assistant Professor, City University of Hong Kong

Boon Thau Loo

Professor, University of Pennsylvania

Mohammad Javad Amiri