consensus-specs/deposit_contract.sol

pragma solidity ^0.6.0;

// This interface is designed to be compatible with the Vyper version.
interface IDepositContract {
    event DepositEvent(
        bytes pubkey,
        bytes withdrawal_credentials,
        bytes amount,
        bytes signature,
        bytes index
    );

    function deposit(
        bytes calldata pubkey,
        bytes calldata withdrawal_credentials,
        bytes calldata signature,
        bytes32 deposit_data_root
    ) external payable;
}