Brave expands Basic Attention Token platform to YouTube

Would I technically owe taxes on tokens received even if I'm never notified of having received them?

Yes, I understand that if it's not reported it's unlikely anyone will be caught, but by the letter of the law does receiving a token mean I've received income?

If you haven't signed up, you owe about as much taxes as you would if I put your name on an envelope with $5 inside it and placed in my desk drawer.