Voluntary validator exit.

Ethereum PoS has a concept of "voluntary validator exit", which will remove the validator from attesting duties. Locked ETH could be withdrawn after the "merge" of the Proof-of-Work and Proof-of-Stake Ethereum chains, and not sooner.

Exiting a validator requires a fully synced consensus client.

Teku

Teku will exit all validators that have been imported to it. Run docker-compose run --rm validator-exit and follow the prompts.

Prysm

To exit, run docker-compose run --rm validator-exit and follow the prompts.

Lighthouse

The exit procedure for lighthouse is not very refined, yet.

  • Copy the keystore-m JSON files into .eth/validator_keys/ in this project directory.
  • Run docker-compose run --rm validator-exit /keys/<name-of-keystore-file>, once for each keystore (validator) you wish to exit.
  • Follow prompts.

The directory .eth/validator_keys is passed through to docker as /keys. Lighthouse expects you to explicitly name the keystore-m file for which you wish to process an exit. Because this can be confusing, here's an example:

yorick@ethlinux:~/eth-pyrmont$ ls .eth/validator_keys/
deposit_data-1605672506.json keystore-m_12381_3600_0_0_0-1605672506.json
yorick@ethlinux:~/eth-pyrmont$ sudo docker-compose run --rm validator-exit /keys/keystore-m_12381_3600_0_0_0-1605672506.json
Starting eth-pyrmont_consensus_1 ... done
Running account manager for pyrmont testnet
validator-dir path: "/keys"
Enter the keystore password for validator in "/keys/keystore-m_12381_3600_0_0_0-1605672506.json"

Nimbus

You will need to know the index of your validator as it shows on https://beaconcha.in/ or https://pyrmont.beaconcha.in/ if on Pyrmont testnet, or its public key.

Run docker-compose run --rm validator-exit <INDEX or 0xPUBKEY> and follow prompts to exit. For example:

  • If using an index, here 0, docker-compose run --rm validator-voluntary-exit 0
  • If using a public key, you need to include "0x" in front of it, for example docker-compose run --rm validator-voluntary-exit 0xb0127e191555550fae82788061320428d2cef31b0807aa33b88f48c53682baddce6398bb737b1ba5c503ca696d0cab4a

Avoid penalties

Note you will need to continue running your validator until the exit has been processed by the chain, if you wish to avoid incurring offline penalties. You can check the status of your validator with tools such as beaconcha.in and beaconscan.