Sky Systems Seminar: Alberto Sonnino (Mysten Labs) – Mysticeti: The New Core of the Sui BlockchainSky Systems Seminar: Alberto Sonnino (Mysten Labs)

Speaker: Alberto Sonnino

Location: Soda 510
Date: May 17, 2024
Time: 12-1pm PST

Mysticeti: The New Core of the Sui Blockchain


This talk introduces Mysticeti, a byzantine consensus protocol with low-latency and high resource efficiency. It leverages a DAG based on Threshold Clocks and incorporates innovations in pipelining and multiple leaders to reduce latency in the steady state and under crash failures. Mysticeti is the first byzantine protocol to achieve WAN latency of 0.5s for consensus commit, at a throughput of over 50k TPS that matches the state-of-the-art. Additionally, and if time permits, this talk describes a variant of Mysticeti, called Mysticeti-FPC, that incorporates a fast commit path that has even lower latency by forgoing consensus whenever possible. Link:

Alberto is a research scientist at Mysten Labs working on the Sui blockchain. He is also affiliated with the computer science department of University College London (UCL). His research interests are in distributed systems, blockchains, and privacy enhancing technologies. These days, he mostly works on Byzantine fault tolerant systems for blockchain applications including consensus protocols, consensus-less (broadcast-based) algorithms, and distributed execution engines. He spends most of his time developing new algorithms to produce more performant distributed systems. A key aspect of his work is to leverage all the resources available to the machine and scale blockchain validators to run on multiple machines.