The Meaning of Life, the Universe, and Everything.
This is going to be a hard question to answer:
I found this website with lots of cool heads and they would give out this command for a commandblock to give the head.
Now they use an id for the head and not a playername.
I want to know the playername so I can use their skin as an NPC.
In the command they only give an id: XXX-xxx-XXX
Now I thought let me use the UUID converter tool but that is not working: