Arbitrum Rollup and Arbitrum AnyTrust are innovative protocols designed to enhance the speed and reduce the cost of Ethereum transactions. Developers leverage the capabilities of Arbitrum One and Arbitrum Nova, the respective chains built on these protocols, to create intuitive decentralized applications. A notable feature of Arbitrum chains, such as Arbitrum One, is the role of a "chain owner," who acts as an administrator rather than a core component of the Arbitrum protocol. This chain owner holds significant authority, enabling them to adjust essential system parameters, pause incoming transactions, and, crucially, update any contracts that govern and implement the core protocol. Consequently, the presence of a chain owner plays a critical role in maintaining the flexibility and adaptability of the network as it evolves.