As promised, here's the network architecture of this particular system:

• A simple web site set up of a web server, web API service and an SQL database
• The database has the user records - each with its own login/password
• Each user record has encrypted personal data
• One user record holds the live bitcoin wallet private key
• Each user has its own unique key for encryption/decryption
• Security (authentication, encryption and decryption) is done through the Tide network
• The Tide network is deployed across 50 nodes (ORKs)
• ORKs are distributed across the 3 main public clouds: Azure, AWS, Google
• Each ORK is managed and maintained separately with its own unique credentials
• For this environment, the Tide network is using EOS public blockchain

Network architecture diagram:


update: fixed diagram link