What is Exonum ?
Exonum is an extensible framework for blockchain projects. Exonum enables you to build decentralized, secure and reliable blockchain applications.Exonum enables you to build decentralized, secure and reliable blockchain applications. It is designed to allow people, companies and governments to design custom private or permissioned blockchains that benefit from the unmatched security of public blockchains.
Exonum brings all the advantages of a true blockchain — auditability, transparency, and unparalleled security — and combines them with privacy, efficiency and controllability.
Exonum is a blockchain framework that allows building secure permissioned blockchain applications. Like all software, Exonum comes with its own set of features and capabilities. This page outlines the cases in which Exonum could be useful and points out the main differences between Exonum and other distributed ledger solutions.
Exonum is a framework; it's not a ready-made blockchain (like, say, Bitcoin). Instead, Exonum can be used to create blockchains, just like MVC frameworks (e.g., Django or Express) can be used to create web applications.
Exonum is geared towards permissioned blockchains. This means that only a limited list of nodes can commit transactions to the blockchain. Such approach is reasonable if there is a certain maintainer (or several maintainers) that should retain some control over the network (e.g., define and update transaction processing rules). Compared to permissionless blockchains (such as Bitcoin), Exonum applications are more local, but at the same time provide greater flexibility and a more controllable environment.
Video for Exonum
https://www.youtube.com/watch?v=K1w_yNiewqU