Substratum LLC. (SUB) was able to bypass China's great firewall--China's mechanism that prevents citizens from accessing websites like Google, YouTube, and Twitter. By using a SubstratumNode, a Chinese citizen was able to access websites that are otherwise blocked by the Chinese government; this is huge for citizens in internet-censored countries like China, Russia, and Iran that block many websites and web-based services.
Soon, Substratum will be launching the third piece of their three-part ecosystem: Amplify Exchange, a distributed and decentralized exchange where SubstratumNode acts as the backbone. SubstratumNodes will process Amplify transactions and node operators will earn AMPX tokens alongside SUB tokens, which means there will be increased transaction volume on the Substratum network. In addition, SubstratumNode allows Amplify to utilize their groundbreaking BridgeChain, which will bridge the distributed and decentralized exchanges by mirroring their ledgers, giving users the benefits of both types of exchanges.