Key management
To become a validator you'll need to know about managing keys and protecting a mnemonic. If you are not yet familiar with keys and mnemonics, please do not proceed.
We'll help you create a signing key for every validator you want to run. You may choose to provide a withdrawal address for your validator when generating your deposit data, which will permanently set the withdrawal address. This is recommended for most users.
If you do not provide a withdrawal address with your initial deposit data, you will need to derive your withdrawal keys from your mnemonic at a later time, so store your mnemonic safely—it will be the ONLY way to withdraw your ETH when you choose to activate withdrawals.