Odaily News Vitalik Buterin said that centralized sequencers actually have many advantages: * A centralized sequencer can ensure that it will not steal users’ money by frontrunning or other means; *instant preconfirmations; *It is easy to turn a traditional application into a blockchain application because the server directly becomes a sequencer. The decentralized nature of blockchain can be used to avoid the risks of centralized sequencers: the forced inclusion mechanism prevents the sequencer from censoring users, and the optimistic or zk proof mechanism prevents the sequencer from changing or violating the application rules (for example, suddenly inflating a token or NFT collection). However, centralized sequencers still have risks, so we cannot rely solely on centralized sequencers to solve the problem. The ability to trade based on rollup or directly on L1 is also important. So I support the two-part ecosystem to promote these two methods at the same time, and then we can see which method is more suitable for which application. Maintaining the ability of ordinary users to issue censorship resistant transactions is of course critical.

Odaily News Aztec, a privacy and expansion solution based on zero-knowledge proof, announced in an article on X that it has opened applications for Sequencer and Prover testnets. The licensed testnet is designed to handle issues such as Sequencer selection protocol, Sequencer and Prover coordination mechanism, and governance (upgrade) mechanism.

Odaily News According to official news, Manta Network and BlockSec have jointly launched the Sequencer Threat Overwatch Program (STOP), which aims to enhance the security of the Sequencer level in L2 solutions and provide comprehensive security protection. It is said that the program integrates advanced threat detection and prevention mechanisms and leverages Manta's strengths and Blocksec's technology to provide an enhanced security layer.

Odaily News According to official sources, the Espresso Sequencer testnet version Doppio has been made available to the public. This public release includes two main aspects: the release of the Espresso Sequencer demo version and the branch of Polygon zkEVM, allowing users to submit transactions to the decentralized Espresso Sequencer running on the Polygon zkEVM branch; and the release of benchmark test results for the Doppio testnet.

Odaily News - Blockchain infrastructure company Espresso Systems has released the testnet version of Espresso Sequencer called Doppio on the Polygon zkEVM fork. The testnet is currently running internally and will be opened to external nodes in the coming months. Additionally, the team plans to ensure economic consistency with the Ethereum Layer 1 through ETH staking and is currently collaborating with Eigenlayer. Following the launch of the testnet on Polygon zkVM, Jill Gunter, co-founder of Espresso, mentioned that Espresso is also collaborating with Caldera to establish integration between Espresso Sequencer and the OP stack. Furthermore, Espresso has partnered with Spire, Injective, and Catalyst AMM to prioritize integration with their projects and Espresso Sequencer. (Blockworks)

Odaily星球日报讯 据欧科云链OKLink多链浏览器数据显示，过去24小时Arbitrum: Sequencer Inbox 合约Gas消耗排名第二，已消耗超179.03枚ETH；此外，Arbitrum: Sequencer Inbox的ETH销毁量排名第二，销毁量达178.64枚ETH。

Odaily星球日报讯 StarkNet正在开发新的开源定序器（Sequencer），其首要目标是增加StarkNet吞吐量。新的Sequencer将分阶段实现，第一个模块已可供社区审查，并将在接下来的几个月中推出更多的模块；最终实现基于Rust的Sequencer完全取代当前基于Python的Sequencer。

据官方消息，针对昨日的Arbitrum One网络宕机事件，Offchain Labs发文表示目前该网络及所有公共RPC节点都已经恢复运行，具体宕机原因是主Sequencer节点中的硬件故障，“虽然我们通常有冗余，可以让备份Sequencer无缝控制，但由于正在进行软件升级，这些功能未能生效，结果导致Sequencer停止处理新交易。”

以太坊扩容网络Arbitrum One发布针对昨日网络故障的报告。从美东时间9月14日10:14开始，Arbitrum One停机持续45分钟，期间Arbitrum Sequencer（定序器）处于离线状态，资金从未面临风险。停机的根本原因是一个Bug，导致Sequencer在短时间内收到大量交易时卡住，Arbitrum团队已经定位到该问题并已部署修复程序。团队还表示，就算Sequencer故障，也不会影响该网络的持续运行，用户可以绕开Sequencer，将交易直接提交到以太坊。