PlasmaBFT delivers deterministic finality, eliminating chain reorganizations for stablecoin payments. A high-performance Rust adaptation of Fast HotStuff, it finalizes blocks after two consecutive Quorum Certificates (QCs) signed by a supermajority (2f+1 of 3f+1) of validators. This lock makes #Plasma blocks irreversible unless >1/3 act maliciously, a cryptoeconomically infeasible attack.
During leader changed @Plasma validators share recent QCs, allowing new leaders to aggregate them and preserve the single, highest certified chain. Optimistic responsiveness removes fixed delays, enabling fast recovery and consistent sub-12-second block times with instant settlement assurance.
This is faster, forkless finality is $XPL the bedrock for reliable, zero-fee USDT transfers, removing the reorg risk inherent in probabilistic chains and enabling global payment scale.