Total order broadcast and multicast (also called atomic broadcast/multicast) present an
important problem in distributed systems, especially with respect to fault-tolerance. In short …

Fabric is a modular and extensible open-source system for deploying and operating
permissioned blockchains and one of the Hyperledger projects hosted by the Linux …

A blockchain is a distributed system that achieves strong security guarantees in storing,
managing, and processing data. All blockchains achieve a common goal: building a …

This paper describes the design and implementation of Egalitarian Paxos (EPaxos), a new
distributed consensus algorithm based on Paxos. EPaxos achieves three goals:(1) optimal …

As used in practice, traditional consensus algorithms require three message delays before
any process can learn the chosen value. Fast Paxos is an extension of the classic Paxos …

Many blockchain-based algorithms, such as Bitcoin, implement a decentralized asset
transfer system, often referred to as a cryptocurrency. As stated in the original paper by …

A system in which clients issue commands and receive responses can be represented as a
state machine. Executing a command in a given state produces an output and a new state. A …

A commutative replicated data type (CRDT) is one where all concurrent operations
commute. The replicas of a CRDT converge automatically, without complex concurrency …

We consider the problem of making apps fault-tolerant through replication, when apps
operate at the microsecond scale, as in finance, embedded computing, and microservices …

Byzantine reliable broadcast is a powerful primitive that allows a set of processes to agree
on a message from a designated sender, even if some processes (including the sender) are …