5 papers · 1 filter
Steelhead: Interleaving Partially Synchronous and Asynchronous Commit Rules on a Shared DAG
George Danezis, Zeno De Angeli, Philipp Jovanovic +3
Dual-mode consensus protocols are fast when the network is partially synchronous and remain live under asynchrony. We introduce Steelhead, a dual-mode mechanism that composes a par…
Barnacle: Adaptive Multi-Leader Scheduling for DAG-Based Consensus
George Danezis, Zeno De Angeli, Alexandru Ianov Vitanov +5
In DAG-based consensus, all validators propose blocks concurrently, and designated leader blocks drive transaction commit. Having multiple leader slots per round cuts queuing laten…
Finding Nemo-Nemo: CFT DAG-based Consensus in the WAN
Rithwik Kerur, Pasindu Tennage, Philipp Jovanovic +3
This paper introduces Nemo-Nemo, a practical crash-fault tolerant (CFT) consensus protocol designed to outperform existing protocols in wide-area networks by bridging design princi…
BlueBottle: Fast and Robust Blockchains through Subsystem Specialization
Preston Vander Vos, Alberto Sonnino, Giorgos Tsimos +2
Blockchain consensus faces a trilemma of security, latency, and decentralization. High-throughput systems often require a reduction in decentralization or robustness against strong…
Mahi-Mahi: Low-Latency Asynchronous BFT DAG-Based Consensus
Philipp Jovanovic, Lefteris Kokoris Kogias, Bryan Kumara +3
We present Mahi-Mahi, the first asynchronous BFT consensus protocol that achieves sub-second latency in the WAN while processing over 100,000 transactions per second. We accomplish…