Software designed to create highly reliable decentralized data storage systems. Scope of the systems: electronic document management, state registers, electronic auctions and cadastres. Exonum CIS is a software package for decentralized data storage based on blockchain technology. Blockchain advantages: fault tolerance, data compactness, transparency of actions of each participant, ease of audit and continuous access to information.

Exonum CIS is designed for standard server hardware and can process up to 2500 transactions per second. This data was obtained on the example of a network consisting of 5 nodes, with the business logic of verifying the digital signature.