Sequencer operation describes the process of ordering and batching transactions on certain blockchain networks, particularly layer-2 solutions. A sequencer collects transactions, orders them, and then submits them to the main blockchain in a compressed form, significantly improving transaction throughput and reducing fees. This role is critical for the scalability of rollups and other off-chain processing architectures. The sequencer acts as a central point for transaction aggregation before finalization on the base layer.
Context
The current discussion around sequencer operation often involves concerns about centralization, as a single sequencer could potentially censor transactions or manipulate their order. Key debates focus on decentralizing sequencers to maintain the integrity and censorship resistance of layer-2 networks. Future developments will likely involve the implementation of multiple sequencers, rotating leadership, or other cryptographic mechanisms to distribute control and enhance the robustness of these critical components.
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