The What, Why and How of MonadBFT (pt. 1)

The What, Why and How of MonadBFT (pt. 1)

MonadBFT builds on the HotStuff consensus protocol to solve a critical flaw known as "tail-forking"—where valid blocks are abandoned despite supermajority approval, causing losses, MEV exploitation, and stalled network finality.

Key Ideas

  1. MonadBFT introduces mandatory reproposal and the No-Endorsement Certificate (NEC) to guarantee that honest blocks aren't skipped without verifiable justification.

  2. These mechanisms secure validator rewards, prevent block manipulation, and reinforce finality guarantees.

  3. It also supports one-round speculative finality, letting clients treat transactions as final after a single vote. Optimistic responsiveness lets the protocol react instantly when quorum is reached, which minimizes latency and maximizing throughput.

Read more at: blog.monad.xyz

2025-04-17


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