We propose separating the task of reliable transaction dissemination from transaction
ordering, to enable high-performance Byzantine fault-tolerant quorum-based consensus. We …

Byzantine fault-tolerant (BFT) protocols allow a group of replicas to come to consensus even
when some of the replicas are Byzantine faulty. There exist multiple BFT protocols to …

Tendermint is the replication engine at the core of Cosmos, a network of proof-of-stake
blockchains. In the lifespan of blockchains, Cosmos and Tendermint are mature …

Blockchain is a decentralized distributed system on which a large number of financial
applications have been deployed. The consensus process in it plays an important role …

Advances in blockchains have influenced the State-Machine-Replication (SMR) world and
many state-of-the-art blockchain-SMR solutions are based on two pillars: Chaining and …

Resilience is vital to blockchain systems and helps them automatically adapt and continue
providing their service when adverse situations occur, eg, node crashing and data …

Blockchain consensus protocols are responsible for coordinating the nodes to make
agreements on the transaction results. Their implementation bugs, including memory-related …

Permissioned blockchains employ Byzantine fault-tolerant (BFT) state machine replication
(SMR) to reach agreement on an ever-growing, linearly ordered log of transactions. A new …

HotStuff is a state-of-the-art Byzantine fault-tolerant consensus protocol. It can be pipelined
to build large-scale blockchains. One of its variants called LibraBFT is adopted in …

A Byzantine Fault-Tolerant (BFT) protocol protects a distributed system from faulty
participants. To provide both liveness and safety, many such protocols assume they are …