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Decentralized Sequencers

Definition

Decentralized sequencers are distributed entities responsible for ordering and batching transactions in certain blockchain scaling solutions. These sequencers play a critical role in rollups, collecting transactions off-chain and then submitting them as a single, compressed data batch to the main blockchain. By operating in a decentralized manner, they aim to prevent censorship and reduce the risk of single points of failure, thereby enhancing the integrity and availability of the scaling solution. Their function is crucial for improving transaction throughput and reducing costs on layer-2 networks.