# ssh-keygen -lf ssh_host_ecdsa_key.pub
256 9d:76:ba:86:80:ef:63:eb:41:2f:13:f3:f4:b5:0b:35  root@bsd.domain.de (ECDSA)

# ssh-keygen -lf ssh_host_ecdsa_key.pub
256 SHA256:6vYsd91sIrtVqPXazpPfRxj9QDa+1+Ns2C2lKSUph3c root@bsd.domain.de (ECDSA)

# ssh localhost
The authenticity of host 'localhost (127.0.0.1)' can't be established.
ECDSA key fingerprint is SHA256:6vYsd91sIrtVqPXazpPfRxj9QDa+1+Ns2C2lKSUph3c.
Are you sure you want to continue connecting (yes/no)?