Astria, a decentralized shared ordering layer, has launched the mainnet, one of the projects aimed at decentralizing blockchain "sequencers". The sequencers are components of a layer 2 network that compile transactions that occur on a secondary network in order to record them on the main layer 1 blockchain, such as Ethereum. Astria says its setup represents "a single, permissionless network that can be shared by multiple rollups, providing settlement (i.e. bridging) and decentralized sorting, wi...