3 papers
cs.DS2026
Bitcoin Mempool Linearization
Arman Mollakhani, Pieter Wuille, Dongning Guo
In the Bitcoin system, transactions arrive continuously at miners' mempools and await inclusion in future blocks. Every non-coinbase transaction must spend one or more unspent outp…
cs.NI2026
Inter-Satellite Link Configuration for Fast Delivery in Low-Earth-Orbit Constellations
Arman Mollakhani, Jerayu Tiamraj, Shu-Jie Cao +1
End-to-end latency in large low-Earth-orbit (LEO) constellations is dominated by propagation delay, making total delay roughly proportional to the network diameter, the longest sho…
cs.CR2025
How to Beat Nakamoto in the Race
Shu-Jie Cao, Dongning Guo
This paper studies proof-of-work Nakamoto consensus protocols under bounded network delays, settling two long-standing questions in blockchain security: What is the most effective…