When using /verify list, all your open and confirmed verifications will be listed. If you ever get disconnected during a verification process, you can retrieve the info needed to verify here. You can also use this command to see your link status (see /verify link) It will contain a pool.pm link to the verified stake address as well as a link to the confirmation transaction on cardanoscan.io
Keep in mind: This command will list your stake addresses and verified addresses. Do not use it if someone can see your screen and you do not want to expose this information.
You can cancel an open transaction via the /verify list command, by clicking the Cancel open verification button at the bottom your verification list.