Access control systems; smart locks; electronic locks for doors and windows; smart padlocks; electronic locking systems comprised of magnetic cards and encoded cards, encoded card readers, electronic door openers and electronic encryption units; electronic locking sets consisting of an electronic lock and a magnetic or encoded key card; software packages; software platforms for computers; software programs for access management; downloadable software in the field of mobile applications for access control to restricted areas; downloadable software for interacting with smart locks; downloadable virtual goods, specifically, downloadable computer programs and files comprising locks, padlocks and opening elements of the same such as keys, cards, bracelets, rings or mobile devices; security tokens [encryption devices]; downloadable multimedia files containing utility tokens authenticated using non-fungible tokens [NFTs]; downloadable multimedia files containing action tokens authenticated using non-fungible tokens [NFTs]; downloadable digital files authenticated using non-fungible token [NFTs]; downloadable software for use in electronic transactions, storing, sending, receiving, accepting and transmitting digital currency, and managing digital currency exchange and payment transactions; virtual reality software for simulations.