The study shows the importance of creating a reliable storage system for electronic documents in the field of education. To this end, the general characteristics of the key methods of protection against counterfeiting in the field of education were analysed. An example is given of a prototype of the EDBlock information system developed by an international group of researchers. The basis of the system is blockchain technology. EDBlock can be applied in a number of educational institutions to ensure the security and legality of documents. Using the IDEF methodology, the basic information flows in the system are studied. The functional blocks of the developed prototype are highlighted and described. An algorithm is proposed to validate a transaction in a socially oriented system by voting for participants who do not have equal rights.