The challenge of the NOSE project is to put in place a technical solution which would enable the protection of archeological objects and the facilitation of the work carried out by those involved in the preservation of these goods. It is a robust and durable solution which is easy to use on excavation sites, all the while remaining reversible through the use of nanometric markers. The consortium is made up of the UTT (L2n lab), HiSoMa (CNRS) and of the ENSP research centre (Police Nationale).