4 papers
OptChain: Achieving Optimal Throughput of Permissionless Blockchains
Chunjiang Che, Songze Li, Xuechao Wang
We introduce \textit{OptChain}, a permissionless blockchain state machine replication (SMR) protocol that achieves optimal throughput. We first establish a theoretical upper bound…
SecurePay: Enabling Secure and Fast Payment Processing for Platform Economy
Junru Lin, Mingzhe Liu, Songze Li +1
Recent years have witnessed a rapid development of platform economy, as it effectively addresses the trust dilemma between untrusted online buyers and merchants. However, malicious…
Manifoldchain: Maximizing Blockchain Throughput via Bandwidth-Clustered Sharding
Chunjiang Che, Songze Li, Xuechao Wang
Bandwidth limitation is the major bottleneck that hinders scaling throughput of proof-of-work blockchains. To guarantee security, the mining rate of the blockchain is determined by…
OmniLytics+: A Secure, Efficient, and Affordable Blockchain Data Market for Machine Learning through Off-Chain Processing
Songze Li, Mingzhe Liu, Mengqi Chen
The rapid development of large machine learning (ML) models requires a massive amount of training data, resulting in booming demands of data sharing and trading through data market…