# Modifications **B2 Modifications** We ensure the configurations by: * Modifying the authentication detection mechanism so that contract deployment is restricted by a whitelist, and only authorized people can deploy contracts. * Modifying the consensus mechanism so that the addition of verifier nodes is controlled, similar to the nature of a federated chain — this will be done later. * Modifying the gas setting in EVM to adjust the parameter to a very low level * Modifying the consensus mechanism and genesis settings to release annualized revenue periodically. * Implementing a cross-chain bridge and modifying the contract to limit the total amount of $MATTER that can be transferred out each day. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.antimatter.finance/b2/chain-architecture/modifications.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.