Looks like I've won a bottle of Smooth Ambler Old Scout.
Whiskeytubers appear to be a fairly small but tight-knit community. I've only been following them for about a month now but it seems to be a fairly common practice for them to hold giveaways during livestream sessions, usually entered by sending in a superchat comment.
I've been told that I will also be getting a prize pack of samplers which will include some of what was drank during the stream. Given that tonight they had Stagg Jr. Batch 15, 12, Old Carter, and several other coveted pours, I think this is a very good start to the year, especially since I can count the number of times in my life I've won something by chance on one hand.