Sequencer Bottleneck

Architecture

A sequencer bottleneck in cryptocurrency represents a systemic limitation in the throughput capacity of a Layer-2 scaling solution, specifically relating to the single point of order sequencing and block proposal. This constraint arises when the rate of transaction submissions exceeds the sequencer’s ability to efficiently process and include them in batches, impacting time-to-finality and increasing transaction fees. Consequently, the architecture’s centralized nature, while enabling faster processing than Layer-1, introduces a potential point of failure and scalability impediment, particularly during periods of high network congestion.