Decentralized Sequencer

General Overview
​HotStuff 
​HotStuff-2​
​Jolteon  (-33% latency) [In Production on Aptos]
​Narwhal & Tusk 
Proposes separating the task of reliable transaction dissemination from transaction ordering for performance increase
Originally implemented by Facebook Research, see GitHub​
​Bullshark [In Production on Sui]
Vanilla Bullshark = Bullshark + support for “weak links” (see section 5.1 here)
​Shoal​
A framework for higher performance for DAG consensus (Bullshark) using pipelining and leader reputation
Improves Bullshark latency by 40% in failure-free cases, 80% in failure cases​
Further Reading
​DiemBFT v4: State Machine Replication in the Diem Blockchain 
​Narwhal and Bullshark, Sui's Mempool and Consensus Engines 
​Cosmos without Tendermint: Exploring Narwhal and Bullshark 
​MEV Resistance on a DAG | Chainlink Blog 
​Cordial Miners: Fast and Efficient Consensus for Every Eventuality 

Last modified 11d ago