Add or change finality vote key
Overview
This guide demonstrates how to add a finality vote key to your profile. The finality vote key is used to vote for blocks in the fast finality mechanism. If you're an active Ronin validator, you need to have this key added in order to have the fast finality rewards transferred to your admin address by the end of the day.
Prerequisites
Generate a BLS key pair
Before you add a finality vote key, you need to generate a BLS key pair. The BLS key pair consists of a private key and a public key. The public BLS key is your finality vote key. For more information, see the Generate BLS key pair guide.
Generate proof of possession
To prove that you own the finality vote key, you need to generate a proof of possession. The proof of possession is a signature of the public key using the private key. There are two ways to generate the proof of possession: using the Ronin CLI or using the Docker image.
Generate using Ronin CLI

Ensure you have the encrypted BLS private key and password in your current directory:
> tree
.
├── bls_keystore
│ └── allaccounts.keystore.json
└── bls_password 
Run the following command to generate the proof of possession:
ronin account generateblsproof
The command will return the BLS public key and the corresponding proof:
BLS public key #0: {redacted}
BLS proof #0: {redacted}
Generate using Docker image

In the
.env
file of your node's Docker image, add the following line:GENERATE_BLS_PROOF=true

Run the following command to start the node:
dockercompose up d

Run the following command to view the logs:
dockercompose logs node
The logs will return the BLS public key and the corresponding proof:
BLS public key #0: {redacted}
BLS proof #0: {redacted}
Add a finality vote key

Open the Validator Dashboard, then go to your account, and then click My profile.

In the Finality Vote Key field, click Add key.

Paste your BLS public key and the proof of possession.

Save the change and confirm the transaction.
Change your finality vote key

Open the Validator Dashboard, then go to your account, and then click My profile.

In the Finality Vote Key field, click the edit icon.

Paste your new BLS public key and the proof of possession.

Save the change and confirm the transaction.
After changing your admin address or fast finality vote key, there's a 24hour cooldown period. During this time, you won't be able to modify either value until 24 hours after the last change.