6 citations · 16 across the 9 of their papers we have counts for
10 papers
GPoS: Geospatially-aware Proof of Stake
Shashank Motepalli, Naman Garg, Gengrui Zhang +1
Geospatial decentralization is essential for blockchains, ensuring regulatory resilience, robustness, and fairness. We empirically analyze five major Proof of Stake (PoS) blockchai…
Decentralization in PoS Blockchain Consensus: Quantification and Advancement
Shashank Motepalli, Hans-Arno Jacobsen
Decentralization is a foundational principle of permissionless blockchains, with consensus mechanisms serving a critical role in its realization. This study quantifies the decentra…
Rorqual: Speeding up Narwhal with TEEs
Luciano Freitas, Shashank Motepalli, Matej Pavlovic +1
In this paper, we introduce Rorqual, a protocol designed to enhance the performance of the Narwhal Mempool by integrating Trusted Execution Environments (TEEs). Both Narwhal and Ro…
How Does Stake Distribution Influence Consensus? Analyzing Blockchain Decentralization
Shashank Motepalli, Hans-Arno Jacobsen
In the PoS blockchain landscape, the challenge of achieving full decentralization is often hindered by a disproportionate concentration of staked tokens among a few validators. Thi…
SoK: Decentralized Sequencers for Rollups
Shashank Motepalli, Luciano Freitas, Benjamin Livshits
Rollups have emerged as a promising solution to enhance blockchain scalability, offering increased throughput, reduced latency, and lower transaction fees. However, they currently…
Analyzing Geospatial Distribution in Blockchains
Shashank Motepalli, Hans-Arno Jacobsen
Blockchains are decentralized; are they genuinely? We analyze blockchain decentralization's often-overlooked but quantifiable dimension: geospatial distribution of transaction proc…
V-Guard: An Efficient Permissioned Blockchain for Achieving Consensus under Dynamic Memberships in V2X
Gengrui Zhang, Yunhao Mao, Shiquan Zhang +3
This paper presents V-Guard, a new permissioned blockchain that achieves consensus for vehicular data under changing memberships, targeting the problem in V2X networks where vehicl…
Reaching Consensus in the Byzantine Empire: A Comprehensive Review of BFT Consensus Algorithms
Gengrui Zhang, Fei Pan, Yunhao Mao +5
Byzantine fault-tolerant (BFT) consensus algorithms are at the core of providing safety and liveness guarantees for distributed systems that must operate in the presence of arbitra…
Decentralizing Permissioned Blockchain with Delay Towers
Shashank Motepalli, Hans-Arno Jacobsen
Growing excitement around permissionless blockchains is uncovering its latent scalability concerns. Permissioned blockchains offer high transactional throughput and low latencies w…
Reward Mechanism for Blockchains Using Evolutionary Game Theory
Shashank Motepalli, Hans-Arno Jacobsen
Blockchains have witnessed widespread adoption in the past decade in various fields. The growing demand makes their scalability and sustainability challenges more evident than ever…