Euroledger has developed the following blockchain-based prototype in the scope of BlockStart:
The user credentials, related to the users’ accounts on platforms B, C and D, are stored in the user’s wallet with identifiers and schemes sitting in the Verifiable Data Registry. The credentials are transferred from the wallet to platform A on demand and upon permission from the user. Platform A verifies identifiers and schemas with the Registry. Digital Identity is using a custom build blockchain system – Aries technology (built on Hyperledger Indy).
The solution is pluggable to any software architecture – the plugin is a generic, light-touch component. From the regulatory perspective, the solution is GDPR compliant and adheres to the W3C standard (Verifiable Credentials Data Model).