Metis is soon to launch a Decentralized Sequencer
to achieve full decentralization in Layer 2 networks and avoid single-point failures derived from centralized Sequencers.
Community Testing of POS Sequencer is happening.
Metis is on the verge of becoming the first Ethereum rollup with a decentralized sequencer, a major step for Ethereum scalability, and the community will be able to directly take part in the journey to rollup decentralization. The Proof-of-Stake Sequencer community testing will be the perfect opportunity for users to learn, interact with existing and new ecosystem dApps on Sepolia testnet, and get rewarded for it.
Architecture of Sequencer
Metis Node
Metis Sequencer node, which includes modules such as L2Geth, OP-node, batch submitter, and MPC node, responsible for multi-signature key and submitting transactions to L1.
PoS Node
The decentralized solution's newly added PoS node (tentatively named POS, subject to change). The core business is the processing logic of the decentralized solution.
Tendermint
A component used for P2P communication and reaching consensus among multiple nodes, provided by the open-source cosmos-sdk project.
Locking
A smart contract on the Ethereum network responsible for lock-up and list maintenance of decentralized nodes. 
Running a Sequencer Node
Benefits
For the Network
For the Sequencer
For the Network
Decentralization
By participating in the consensus process, Sequencers play an essential role in maintaining the network’s decentralization, transparency, and stability.
Security
With multiple nodes or entities participating in sequencing, it becomes more challenging for malicious actors to control or compromise the order of transactions.
For the Sequencer
Rewards
Sequencer nodes have the opportunity to earn METIS tokens as rewards for their role in block production and transaction processing within the network.
Community
Active participation can increase recognition within the community, creating possibilities for future collaborations, and potential partnerships.