Chained Consensus
A consensus-protocol design in which agreement decisions are arranged in a chain (each block points to its parent via a Quorum Certificate) rather than as independent rounds. Commitment of a child commits the parent — and in HotStuff’s three-chain structure, the grandparent. Naturally amenable to pipelining, since the chain provides the dependency information needed to reason about overlapping decisions safely. The basis of essentially every BFT-PoS blockchain consensus protocol shipped after 2019.