> For the complete documentation index, see [llms.txt](https://docs.antimatter.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.antimatter.finance/b2/chain-architecture/modifications.md).

# 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.


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