Universal Customer Identifiers

A method implemented in a network to provide efficient universal user identifier (UUID) generation and resolution with user privacy consideration, wherein the method comprises:

• receiving, by a UUID management application at a computing system, a plurality of records associated with a user across different application services, wherein each of the plurality of records comprises one or more personal identifiable information (PII) attributes of the user;
• filtering out, by the UUID management application, based on a privacy preference of the user, at least one record from the plurality of records to generate filtered records;
• generating, by the UUID management application, a plurality of first signatures based on the filtered records, wherein the generating comprises generating an individual one of the plurality of first signatures by applying a hash function to one or more PII attributes in a respective one of the filtered records;
• searching, by the UUID management application, for the plurality of first signatures in a customer database comprising a plurality of universal identifier (UUIDs), each in association with one or more respective ones of a plurality of customer signatures and identifying a respective one of a plurality of customers;
• determining, by the UUID management application, based on the searching, a match between one or more first signatures of the plurality of first signatures and one or more customer signatures of the plurality of customer signatures associated with a first UUID of the plurality of UUIDs;
• determining, by the UUID management application, a confidence score based on a sum of one or more reference weights, each indicative of a confidence level of a respective one of the one or more customer signatures being associated with a specific customer;
• and
• outputting, by the UUID management application, an indication that the first UUID is an identifier of the user based on the confidence score satisfying a threshold.

A system comprising:

• at least one processor;
• at least one non-transitory memory;
• a customer database comprising a plurality of universal identifiers (UUIDs), each in association with one or more respective ones of a plurality of customer signatures and corresponds to a different one of a plurality of customers;
• and
• a UUID management application comprising instructions stored at the at least one non-transitory memory, which when executed by the at least one processor, causes the UUID management application to:
• receive a plurality of records, each comprising one or more personal identifiable information (PII) attributes associated with a user, wherein each of the plurality of records is associated with a different application service;
• generate a plurality of first signatures based on the plurality of records, wherein the generating comprises generating an individual one of the plurality of first signatures by applying a hash function to one or more PII attributes in a respective one of the plurality of records;
• determine that none of the plurality of UUIDs in the customer database correspond to the user based on a comparison of the plurality of first signatures of the user and the plurality of customer signatures in the customer database;
• generate a UUID for the user based on the determining that none of the plurality of UUIDs in the customer database correspond to the user;
• and
• add, to the customer database, the UUID for the user in association with the plurality of first signatures.