Does my boxer look like he's a boxer?

i got my boxer from a friend in another state at 8 weeks old, his name is Roscoe. I was told his parents were boxer but they had no papers on them, since they never planned on showing them. Does he look pure boxer to you, whenever someone sees him, they say what a cute puppy, other than boxer what is he? No matter what he is, I love him, but I’m just curious to know what if anything else he is.
Thank you