Substratum company wants to make the web decentralized by being large open source network where anyone can rent out their computers as hosting providers.
Instead of a number of people connecting to large centralised web hosts, they can connect to a network that is run on millions of individual nodes (computers). Instead of using proprietary software for the server machines, they will make use of open source code on a blockchain.
Substratum is trying to achieve is to give all of those who are connected to the network the opportunity to become their very own web hosts. They are the “nodes” that form part of the broader decentralised network. If you wanted to become a host on the Substratum network, all you would have to do is download the latest Substratum software. This is open source meaning that anyone can download the code and work on it themselves.
In return for offering up your PC as a decentralised host, you will be rewarded with the Substratum tokens