It seems like Session relies on Oxen's network, so while there is no inherent coin it is blockchain backed.
> Session’s onion routing system, known as onion requests, uses Oxen‘s network of Oxen Service Nodes, which also power the $OXEN cryptocurrency. Check out Oxen.io to find more information on the tech behind Session’s onion routing.
It seems like Session relies on Oxen's network, so while there is no inherent coin it is blockchain backed.
> Session’s onion routing system, known as onion requests, uses Oxen‘s network of Oxen Service Nodes, which also power the $OXEN cryptocurrency. Check out Oxen.io to find more information on the tech behind Session’s onion routing.
https://getsession.org/faq#onion-routing