# State ## Parameters and Genesis State `Parameters` define the list of conversion pairs allowed to be converted between Kava ERC20 tokens and sdk.Coins. ```protobuf // Params defines the evmutil module params message Params { // enabled_conversion_pairs defines the list of conversion pairs allowed to be // converted between Kava ERC20 and sdk.Coin repeated ConversionPair enabled_conversion_pairs = 4; } // ConversionPair defines a Kava ERC20 address and corresponding denom that is // allowed to be converted between ERC20 and sdk.Coin message ConversionPair { // ERC20 address of the token on the Kava EVM bytes kava_erc20_address = 1; // Denom of the corresponding sdk.Coin string denom = 2; } ``` `GenesisState` defines the state that must be persisted when the blockchain stops/restarts in order for normal function of the evmutil module to resume. ```protobuf message GenesisState { repeated Account accounts = 1 [(gogoproto.nullable) = false]; Params params = 2 [(gogoproto.nullable) = false]; } ``` ## Account An `Account` is a struct representing the excess `akava` balance of an address. Since an address's total `akava` balance is derived from its `ukava` balance and the excess `akava` balance stored by the `Account` struct, the `akava` balance here should never exceed 1 `ukava` (10^12 `akava`). ```protobuf message Account { bytes address = 1; string balance = 2; } ``` ## Store For complete implementation details for how items are stored, see [keys.go](../types/keys.go). `x/evmutil` store state consists of accounts.