TY JOUR TI CONCEPTUAL FOUNDATIONS FOR BUILDING A SYSTEM OF ELECTRONIC TECHNICAL PASSPORTS OF INFORMATION SYSTEMS BASED ON BLOCKCHAIN TECHNOLOGY IN ORDER TO IMPROVE THE EFFICIENCY OF INFORMATION PROTECTION MEASURES AND ENSURE THE MANAGEMENT OF THE DEVELOPMENT OF COMPLEX SYSTEMS KW blockchain technology KW technical data sheets KW information systems KW decentralized registry KW smart contracts KW change management KW software configuration KW data security KW information security KW process automation KW immutability of records KW audit control KW threat monitoring KW access control KW management efficiency KW automated systems KW critical systems JO Scientific and analytical journal «Vestnik Saint-Petersburg university of State fire service of EMERCOM of Russia» AU Efimov, A.O. AU Zverev, G.I. AU Rogozin, E.A. AU Kalach, A.V. PY 2026 IS PB Saint-Petersburg University of State Fire Service of Emercom of Russia