-d

Requests that the received certificate be decoded prior to output. Without the -d option, the raw certificate, suitable for saving into a file, is written to standard out. 

-n NSID

By default NSID 1 is used for retrieves. Any NSID number may be specified with the -n option. 

-h server

Specifies the keyserver. 

keyid

The Master Key ID specified in hex.