This field holds the system's SSH/SFTP public key, up to 2500 bytes, noted in the description as a leaf list encoded across several underlying fields. An operator retrieves this value to distribute the device's public key to management systems or administrators who need to verify the device's identity when connecting, or to configure known-hosts entries. Comparing this key against a previously recorded value is how an admin detects if the device's SSH host key unexpectedly changed, a potential sign of tampering or a reinstalled system.