Thanks for sharing. The concept is certainly innovative. However as a medical professional, I had some questions:

• Why does your project need a blockchain structure as opposed to a centralized database (per HealthVault, Epic, etc)? The product that you showed is obviously a thin client, so are full clients storage nodes?
• The structure seems akin to projects such as SiaCoin and Storj, but with a medical twist. How does such data (even encrypted) maintain HIPAA compliance across state and possibly national borders? Do you consider your project a HIPAA-compliant cloud?
• How do you see the storage utilization of your nodes compared to the two above projects? (this gets back to the "Why blockchain" question.)
• Why did you select Ethereum for your blockchain of choice for token issuances?
• Do you plan to engage the traditional EHR providers such as Epic to facilitate the initial data preload as well as extensions for utilizing your blockchain/database? If not, how do you expect to get patient data onto the network? From doctors/nurses? Patients? etc

Apologies if some of these are addressed through the whitepaper; haven't had the time to thoroughly peruse it yet. Your responses greatly appreciated.