M. Ioannides et al. (Eds.): EuroMed 2012, LNCS 7616, pp. 874–883, 2012. © Springer-Verlag Berlin Heidelberg 2012 Science in Aid of Expert Opinion: A Tell-Tale on Disputed Artworks Fotini Koussiaki 1,4,* , Vivi Tornari 2,4 , Eleni Kouloumpi 3,4 , and Alkis Lembessis 4,5 1 Conservation and Restoration of Cultural Heritage, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece consci@artgnomon.com www.arch.auth.gr 2 IESL/FORTH, Institute of Electronic Structure and Laser, N. Plastira 100, Heraklion 71 110, Crete, Greece www.iesl.forth.gr 3 National Gallery - Alexandros Soutzos Museum, Michalakopoulou 1, Athens, Greece www.nationalgallery.gr 4 ARTGNOMON www.artgnomon.com , 5 TAURUS Secure Solutions LtD, Pipinou 22, 11257 Athens, Greece www.taurus.com.gr Abstract. Nowadays the increase demand for loaning art objects as well as safety, ethical, economical and security issues, are forcing curators and conservation experts to undertake challenging and disputable decisions in regards of issuing an artwork accreditation. On the other hand scientific analysis and modern tools in artwork conservation offer a powerful source for objective multidisciplinary choices serving and safeguarding an expert’s decision. Hence, strong initiatives and innovative actions are important to be taken to ensure that modern technology serves for cases of dispute, damage, fraud, or mistreatment during transportation of Cultural Heritage. Therefore the paper presents some current results in originality assessment and results from the development of an anti-fraud concept based on an innovative approach of works of art, and application of methodologies and instrumentation. The authors’ aim and prior consideration is to respond to such critical aspects of increased importance in cultural heritage preservation, among which to secure proper treatment, to assess possible damage and to fight fraud actions. The paper introduces for the first time to our knowledge the idea of fraud-fighting with development of dedicated “ultimate documentation UD” ™. Keywords: accreditation, art conservation, art in transit, documentation, originality, interferometry, holography, spectroscopy, conservation science, originality, security, fraud, titanium white. 1 Introduction Europe holds universal importance in worldwide Cultural Heritage and transit of works of art, such as paintings and sculptures, which are the lifeblood of Europe's * Corresponding author.