Substratum is an open-source network that allows anyone to allocate spare computing resources to make the internet a free and fair place for the entire world. 
The platform wants to do with the internet what Satoshi Nakamoto wanted to do to currency with Bitcoin. Thanks to Substratum, internet users don’t need to rely on Centralized, monolithic hosts to access web content. Instead, a network of individually-run nodes allows users to surf the web on a Decentralized, open-source platform.
The Substratum Network is based on a worldwide collection of nodes. That network uses cryptography to deliver secure content anywhere without the need for VPNs or Tor.
The company also plans to revolutionize the hosting industry with per-request billing via microtransactions. Microtransactions are facilitated by blockchain technology and artificial intelligence.
With Substratum, anyone can become a web host on the decentralized internet. Unlike many technologies based on the blockchain, SubstratumNode emphasizes an intuitive user experience – so even if you have no experience running nodes, you can still earn money through Substratum. Anyone can earn substrate (SUB) by turning their computer into a host. All you need is a web browser and a few clicks.
By turning your system into a node, you can earn money while you sleep. Your node will run using minimal system resources during active hours. Then, when you sign off for the day, the node will kick into high gear.
For each request your node serves, you’re paid a microtransaction from the host in Substrate (SUB). You earn passive income, and the user gets a host.
Everything can be customized through the Substratum settings application. You can change how hard your machine works day and night, for example. 
Some of the key advertised benefits of Substratum include:
Ease Of Use:
Currently, nearly everything that has to do with cryptocurrency or the blockchain is difficult for average users to do. It requires in-depth technical knowledge. Substratum aims to use its 10+ years of experience working with companies like Apple to emphasize a better user experience. A better user experience spurs more adoption and a bigger decentralized internet. 
Serving Up Of Decentralized Content:
Substratum creates a platform for serving decentralized content through a Mac, Windows, or Linux application. That application is easy to install and run and requires no technical experience. 
Incentivizing Users To Serve The Content:
Substratum will incentivize users to run the Substratum Network client on their machine, then reward them with Substratum Coin for doing so. The coin is issued to the host through micro-transactions. 
Privacy, Security, And Encryption:
Millions of Substratum network users can serve content on the platform in a secure and encrypted way. Substratum uses advanced cryptography algorithms rooted in artificial intelligence to ensure all data remains secure. 
Storage And Serving Of Content:
Substratum uses custom-developed advanced compression algorithms and machine learning to geolocate the right Substratum Network machine to serve up content to the appropriate user based on geolocation. 
DNS (Domain Name System):
The first version of SubstratumDNS will be a complex, AI-enabled DNS server that will receive DNS requests along with the geolocation of the requestor, then find the closest available SubstratumNode based off that information. 
Substratum has an API and SDK to spur development on the decentralized web. 
All websites and applications will have equal ability to be broadcast in an equal and fair manner on the decentralized internet. 
No International Barriers:
Countries like China have strict barriers on internet access. Substratum removes the need for internet users in certain countries to use Tor and other special software. With Substratum, anyone can install the desktop client and begin accessing the decentralized internet. 
Lower Hosting Costs:
Substratum uses microtransactions to only charge for each request that is processed. With conventional payment processing technologies, this doesn’t make sense. With blockchain technology, microtransactions become easy. 
Here are some of the key features of the underlying technology behind Substratum:
- SubstratumNode: Network members that run the Substratum broadcast software will receive SUB coins by serving requests. This is the process mentioned above, where the node can run in the background to earn passive income from system resources. You get paid in microtransactions every time someone serves a request to your node.
- CryptoPay: All sites on the Substratum network can process cryptocurrency transactions using any publicly-traded coin.
- SubstratumHost: Businesses or entities that wish to host sites, databases, and applications on the network use SUB coins to pay network members.
- Artificial Intelligence: Substratum has machine learning functionality that geolocates the right Substratum Network machine to serve up content with the fastest possible load times. In other words, Substratum finds the closest node to your location.
- Easy to Use Software: Substratum claims its software can setup a node in one click.
- Cryptography: Advanced cryptography algorithms rooted in artificial intelligence ensure all data on the Substratum Network remains secure.
- Developer Tools: Substratum provides an API and SDK that can be used to develop tools on the network. These tools should accelerate growth of the decentralized web.
- Compression Algorithms: Custom-developed advanced compression algorithms ensure low latency and fast load times for content. 
On April 23, 2018 Substratum team member Abram Cookson announced open sourcing SubstratumNode, on Twitter. 
The team behind Substratum is a US-based software development firm. Over the past 10 years, that firm has built and deployed software for Fortune 100 companies like Apple, Facebook, Disney, HP, and others. Key members of the team include project leads: 
Justin Tabb (Co-founder and CEO)
Founder of OverridePro, a web developing company
Abram Cookson (CIO and Co-founder)
Over 18 years experience in software development
B.J Allmon (COO and Co-founder)
Product engineering leader for 20 years and speak for Substratum.