From http://youbase.io whitepaper:
YouBase provides an individual-centric security structure that separates personal data from identity while allowing for secure and structured read and/or write access to trusted parties on a peer-to-peer data store. This structure provides several benefits, including:
a way to securely input, access and share any kind of file or record
a way to organize authorized access to information into a structured hierarchy
improved anonymous information sharing that could be used as a public or shared private asset
information sharing transactions can be to be tied to financial transactions
It looks like a very interesting way to store private information: medical info (drug allergies, etc) that you only want to share with certain individuals. Interested to see if/how it fits in with Passcard & Blockstack!