Secure low-weight data hub

Reductions to bandwidth storage resource use needed to safely and securely provide longitudinal data related to individuals to authorized parties from disparate sources are realized by employing the present disclosure. As the data related to the individual are held by various originating and aggregating databases in a variety of formats, with each database having different sharing policies, and the user similarly specifying different access permissions to personal data, a hub that manages access in a hybrid distributed/aggregated mode enables requestors to review data at a single point of access in accordance with specified access permissions from the databases or the individual. Reduced weight records, using permitted data fields, are aggregated and links to the records are provided according to the determined permission levels.