# Contrib Resources and examples for running and interacting with the kava blockchain. `contrib` contains sample genesis files, example governance proposals, and rest-server request examples for different versions of kava. ## testnet-4000 kava-testnet-4000 introduces the cdp and auction modules, allowing users to create CDPs and mint usdx as well as participate in auctions. Configuration and rest-server interaction files are available in the [testnet-4000](./testnet-4000/README.md) directory. ## testnet-5000 kava-testnet-5000 introduces the bep3 modules, allowing users to transfer BNB between the bnbchain testnet and kava. Configuration and rest-server interaction files are available in the [testnet-5000](./testnet-5000/README.md) directory. ## dev During development new features offer require modifications to the genesis file. The dev directory houses these genesis files.