The aim of the dissertation is to analyse works of a Moscow conceptualist Dmitrij Prigov. Prigov approached his medially diversified legacy (that was characterized by media diversity and quantitative hypertrophy) as a life-long project Dmitrij Aleksandrovič Prigov. (project DAP). One of the goals of the project was to remain unidentified, which means to suspend the straight-forward relation between an individual media product and the intention of the authorial subject. However, the connection between the media products and the authorial subject preserved. It is the modality of the connection that changed. The dissertation focuses on the analysis of the modality of the connection. The research begins with an analysis of the media products and proceeds toward the issue of authorial subjetʼs identity construction. Nevertheless, it is the media products that the identity of the authorial subject is constructed by. Authorial subject, however, plays the role of the (co-)agent in the production process of the media products together with other non-human agents like iterable patterns, instruments, techniques and semiotic systems. Methodologically, the dissertation emerges from the intersection of media theories, social theories and the theoretical reflection of the phenomena gathered under the umbrella...