So i need to dig deeper about bitcoin and how anynomous it is compare with other cyrptocurrencies.
Basically... it isn't anonymous... and it wasn't really designed to be. At best it is "pseudo-anonymous".Because i need defend if bitcoin is really anonymous...
I hope for your sake that your graduation is not dependent on successfully arguing that "Bitcoin is anonymous"... Because if it is, you're in trouble 
Hopefully, I have just misunderstood what you're saying and what you need to show is "How anonymous is Bitcoin?" 
We want to pick a unique topic for our defense. Thank you for your help. Pseudo- anonymous is new to me I guess i need to check that out also.