Odaily News According to official news, AltLayer launched a stateless Rollup client design proposal, which built a stateless client using an alternative DA layer instead of Ethereum's Rollup. The stateless client needs to ensure that the Rollup block has been published on the underlying DA layer. Once the availability of the block is determined, the stateless client needs to ensure that the state generated by the execution of transactions in the block has also been committed in the Rollup contract.