Ensure you can regenerate the same eth2 key pairs by restoring your validator_keys
Using the pre-built staking-deposit-cli executable,
cd $HOME/staking-deposit-cli
./deposit existing-mnemonic --chain mainnet{% hint style="info" %} When the pubkey in both keystore files are identical, this means your mnemonic phrase is veritably correct. Other fields will be different because of salting. {% endhint %}