To verify your validator's identity, you must sign the message FIREDANCER with you identity key.You can use the solana CLI to sign the message as shown below,
FIREDANCER
solana
$ solana sign-offchain-message "FIREDANCER" --keypair PATH_TO_KEYPAIR
The identity key of your Firedancer validator on mainnet.
The identity key of your Firedancer validator on testnet.
If you have the Firedancer GUI set up, consider sharing it with the Firedancer team. This information will not be displayed publicly.