These are all mine: (there are more too, actually, which I can't find. I can't remember my contributions before November 2011. )
Out of these, some are ||mine||, some are hackers. Everything related to Mathematics/Physics is mine. The rest are hackers'. Most are hackers':
http://en.wikipedia.org/wiki/Special:Contributions/220.255.2.70
http://en.wikipedia.org/wiki/Special:Contributions/137.132.250.11
http://en.wikipedia.org/wiki/Special:Contributions/220.255.2.130
http://en.wikipedia.org/wiki/Special:Contributions/220.255.2.115(almost all of these are hackers)