In my practice, I explore the visual evidence that proclaims our own individual existence in the world. Here, in order to determine an instant and prove that I exist, I print with my fingertips repeatedly upon a wall. The fingerprints are evidence of my presence in an instant, and as fingerprints are unique for each person, mine define me as being present in a specific place and time. The duration of making each mark takes a defined moment, and therefore it becomes an index. Every touch creates a unique fingerprint that reflects each moment of time, and each imperfection proves that a living creature, not a machine created these marks. The time spent on the production of the work, becomes as an important element that is as significant as the ink that is applied with the action of my fingers. I create lines of repetitive patterns, and the smooth tonal gradient give a sense of the passing of time. The walls are transformed into a time map, which records passing moments, gone forever. I work in a partly constructed apartment, because for the modern man, concrete walls have become the normal habitat. Our homes are covered with layers of invisible traces of our time in them, including numerous fingerprints. Therefore, to leave fingerprints on the walls, for me is an organic process, similar to the traces we can still witness in the caves of Lascaux.