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Welcome to the Metis Decentralized Sequencer Operation Guide. |
This document serves as a comprehensive resource to understand the principles, functionalities, and operations of sequencer nodes in the Metis Layer 2 network.
With the introduction of Decentralized Sequencers, Metis aims to achieve full decentralization of its Layer 2 networks, overcoming the limitations of traditional centralized sequencers. This system is designed to enhance security, scalability, and transparency while ensuring fault tolerance and efficient transaction ordering.
Decentralized Sequencers are key entities within the Metis Layer 2 ecosystem, responsible for:
- Sequencing transactions and assembling blocks on the Metis Layer 2 chain.
- Submitting batched transactions to Ethereum Layer 1 for security and finality.
- Ensuring seamless rotation and fault tolerance through decentralized governance.
Unlike centralized systems, Metis leverages a pool of decentralized sequencers to distribute responsibilities and eliminate single points of failure. This model enhances the resilience of the network while fostering community-driven participation.\
The transition to decentralized sequencers is a critical milestone for Metis. The primary objectives include:
- Resilience and Security: Elimination of single points of failure by distributing the sequencing process across multiple nodes.
- Fair Participation: Introducing a weighted voting mechanism based on staked METIS tokens, ensuring fairness in sequencer selection.
- Governance and Accountability: Establishing governance mechanisms to penalize malicious behavior and reward contributors.
- Efficiency and Scalability: Ensuring efficient transaction processing and block production across the Layer 2 network.
- Sequencer Rotation
- Ensures fair distribution of block production roles.
- Utilizes a rotation mechanism managed by the Proof-of-Stake (PoS) consensus layer and smart contracts.
- Fault Tolerance
- Automatic reselection of sequencers in case of failure or malicious activity.
- Guarantees network stability by replacing inactive or misbehaving sequencers.
- Community Governance
- Decentralized governance ensures community participation in decision-making.
- Slashing mechanisms to penalize malicious behavior and reward honest participants.
- Transparency
- Publicly auditable sequencer operations and rotation records.
- All sequencer-related actions are stored on-chain, ensuring transparency.