Michael Factor Ealan Henis Dalit Naor Simona Rabinovici-Cohen Petra Reshef Shahar Ronen Giovanni Michetti Maria Guercio Authenticity and Provenance in Long Term Digital Preservation: Modeling and Implementation in Preservation Aware Storage. 2009 Workshop on the Theory and Practice of Provenance http://www.usenix.org/events/tapp09/tech/full_papers/factor/factor.pdf conf/fast/2009tapp db/conf/fast/tapp2009.html#FactorHNRRRMG09