Ragib Hasan Radu Sion Marianne Winslett The Case of the Fake Picasso: Preventing History Forgery with Secure Provenance. 1-14 2009 FAST http://www.usenix.org/events/fast09/tech/full_papers/hasan/hasan.pdf conf/fast/2009 db/conf/fast/fast2009.html#HasanSW09