What is Hyperledger Fabric?

Hyperledger Fabric is a permissioned blockchain protocol that was initially designed by IBM and other constituents to provide a modular framework that enables delineation of node infrastructure, smart contract execution, configurable consensus, and blockchain-agnostic membership services. Hyperledger Fabric is composed of Peer Nodes, Orderer Nodes, and Membership Service Providers (MSPs) which typically make use of a Certificate Authority responsible for authenticating Hyperledger member identities and role types. Hyperledger uses JavaScript, Go, Java, and other languages. It is capable of using multiple consensus methodologies, but is generally used with Practical Byzantine Fault Tolerance (pBFT).