Transition from PBFT consensus to a Rollup-style sequencer architecture

[tomatoishealthy]

Background

As a payment-oriented Rollup, Morph aims to provide real-time, high-throughput, and user-friendly transaction services. However, the tendermint architecture imposes certain limitations on achieving this vision. Therefore, architectural changes are required to better support these goals.

Module Refactoring

• Phase1. Migrate the existing PBFT consensus to a Rollup-style sequencer architecture, while maintaining compatibility with both the legacy and the new block production logic.
  • Feat: pbft to rollup sequencer, include P2P & block produce tendermint#25
  • Feat: pbft to rollup sequencer, include P2P & block produce #847
  • Feat: pbft to rollup sequencer, include P2P & block produce go-ethereum#274
• Phase2. Enable the sequencer/submitter to independently assemble and submit batches, along with corresponding updates to the Rollup contract interfaces.
• Phase3. Introduce sequencer rotation / update logic.
• Phase4. Add logic for nodes to validate and reorg blocks based on L1 batches.
• Phase5. Introduce a high-availability (HA) module for the sequencer.
• Phase6. Introduce sandboxed signing for the sequencer.
• Phase7: other