ArticleBlockchain
HotStuff: QC, highQC, and the three-chain rule
A visual and rigorous reading of quorum certificates, highQC memory, and the three-chain commit rule.
HotStuffBFTConsensusQC
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ArticleBlockchain
HotStuff: view change, pacemaker, and safe memory
How a new leader collects QCs, selects highQC, and proposes again without erasing the protocol’s safety memory.
HotStuffBFTPacemakerView change
ArticleBlockchain
BFT signatures: threshold, aggregation, and AggQC evidence
How to distinguish votes over one message, different view reports, and the proof a leader carries through a view change.
HotStuffBFTBLSAggregate signatures
ArticleBlockchain
BFT consensus from scratch: replicas, quorums, and Byzantine faults
What Byzantine fault tolerance solves, why n ≥ 3f + 1 appears, and how to separate safety from liveness before reading HotStuff.
BFTSMRQuorumsHotStuff
ArticleBlockchain
One, two, and three chains: the commit taxonomy before HotStuff
How many consecutive certifications a protocol needs before saying “this will not move”, and how that answer prepares QC, highQC, and Fast-HotStuff.
HotStuffBFTCommit ruleFast-HotStuff
ArticleBlockchain
Tendermint through the HotStuff lens: locks, unlocks, and evidence
How to read Tendermint through HotStuff: prevote, precommit, LockedValue, ValidRound, proposer rotation, evidence, and slashing.
TendermintHotStuffLocksSlashing