Thanks for the heads up (pirate)
There are no codes. You link your Microsoft/Sea of Thieves account with your Twitch account and it'll automatically show up in game once you meet the criteria specified (watching for at least 20m). Link your accounts here: https://www.seaofthieves.com/twitch-drops
How's it delivered? Do you have to link accounts, or does it give you a redeemable code?
I just realised you can still get the drop by just watching an eligible streamer (aka partner) if they’re on the menu screen - the game just has to be running. Maintenance breaks shouldn’t get in the way then. Just watch for 20-30m and you’ll get it.