Published Paper Details:

In response to society's need for personal data, a number of online information platforms have evolved as a crucial business model. In these platforms, a service provider purchases raw data from data suppliers and subsequently provides value-added services to data customers. The data trading layer presents a significant challenge for data consumers, too, namely how to confirm that the service provider is indeed obtaining and processing their data. Furthermore, data contributors often are reluctant to provide sensitive personal information to data consumers or to reveal their true identity. A method for identifying contributors that is based on honesty is given. A user can submit an assessment to the system after purchasing a product to see if contributors are permitted. Data contributors cannot personally identify others under Data Verification and Privacy Preservation, even though they must legally provide their own data. Furthermore, it is required of the service provider to accurately gather and manage data. Furthermore, critical raw data and the personally identifiable information of data providers are appropriately safeguarded. For data verification and privacy protection, we also used two more data services, and we closely evaluated their effectiveness on two real-world datasets.