Blockchain-enabled sharing of private data

A method, comprising:

• receiving, by a computing device, an identifier associated with a user and a partner institution;
• obtaining, by the computing device and based at least in part on the identifier, at least a user decentralized identifier (user DID) associated with the user and a partner decentralized identifier (partner DID) associated with the partner institution;
• identifying, by the computing device, a blockchain based at least in part on the partner DID;
• determining, by the computing device, user data from the blockchain based at least in part on the user DID;
• and
• sending, by the computing device, the user data to a processing service.

A non-transitory, computer-readable medium, comprising machine-readable instructions that, when executed by a processor of a computing device, cause the computing device to at least:

• receive a registration request to register a user, the registration request comprising at least a user decentralized identifier (user DID) associated with the user;
• obtain a partner decentralized identifier (partner DID) associated with a partner institution, based at least in part on the registration request;
• determine user data from a blockchain based at least in part on the user DID, the blockchain being associated with the partner DID;
• and
• complete registration of the user based at least in part on the user data.