Decentralized sequencer protocol Espresso system launched fourth testnet, Gibraltar testnet, and is publicly available for Arbitrum developers.
Layer 2 Sequencers are responsible for processing and ordering transactions from a mempool into blocks. They can be compared to validators on monolithic blockchains or layer-1 networks, and play an important role in securing the network.
The problem with sequencers today is that many rollups run their own sequencers with their own execution environments, and zero-knowledge solutions run their own provers. Thai introduces trust assumptions and centralization concerns.
In addition to making it possible for Arbitrum developers to test their dapps using the shared sequencer network, the Gibraltar testnet will also see external node operators run the network for the first time.
Espresso provides a shared sequencer network, a distributed consensus system shared between rollups — which has so far already been integrated with Optimism, Cartesi and Polygon zkEVM via testnet
Layer 2
