Privacy-preserving identity verification using blockchain and granular data control

A computer-implemented method, comprising:

• obtaining user credential data from heterogeneous data sources, the user credential data comprises at least one data element, the user credential data being unstructured and in various formats,
• extracting the user credential data by parsing the user credential data using at least one data parsing technique to generate parsed user credential data,
• segmenting the parsed user credential data into discrete identity elements, individual discrete identity elements representing a specific attribute of an identity of a user associated with the user credential data,
• standardizing the discrete identity elements to generate standardized discrete identity elements, wherein standardizing the discrete identity elements comprises applying formatting rules to ensure the discrete identity elements conforms to a predefined structure,
• mapping verification questions to the standardized discrete identity elements to generate verification pairs, wherein mapping comprises utilizing algorithms to match the standardized discrete identity elements with relevant question templates,
• transforming the verification pairs into identity tokens, the identity tokens representing verified identity attributes and generated through application of cryptographic techniques, and
• maintaining the identity tokens on a computerized ledger system.

A non-transitory computer readable storage medium storing instructions that, when executed by at least one processor of a computing system, causes the computing system to:

• obtain user credential data from heterogeneous data sources, the user credential data comprises at least one data element, the user credential data being unstructured and in various formats,
• extract the user credential data by parsing the user credential data using at least one data parsing technique to generate parsed user credential data,
• segment the parsed user credential data into discrete identity elements, individual discrete identity elements representing a specific attribute of an identity of a user associated with the user credential data,
• standardize the discrete identity elements to generate standardized discrete identity elements, wherein standardizing the discrete identity elements comprises applying formatting rules to ensure the discrete identity elements conforms to a predefined structure,
• map verification questions to the standardized discrete identity elements to generate verification pairs, wherein mapping comprises utilizing algorithms to match the standardized discrete identity elements with relevant question templates,
• transform the verification pairs into identity tokens, the identity tokens representing verified identity attributes and generated through application of cryptographic techniques, and
• maintain the identity tokens on a computerized ledger system.