This paper outlines the main approach and the general design of the plagiarism detection prototype application we have developed to take part in the 2nd International Plagiarism Detection Competition. The developed system is a part of the larger application used at Zhytomyr State University as CMS Thesis Storage and comes under the title "Plagiarism Detector Accumulator". This application prototype uses fingerprinting and hash search methods to locate similarities between different documents and thus detect plagiarism.