A Secure Circulation Mechanism of Personal Data Based on Blockchains

This paper discusses the privacy protection and security application of personal data from the perspective of building private chains. Individuals have control over their private chains, and their data can be transferred based on the owner’s active hashed interactions, which is a mechanism allowing the step of reaching consensus to be separated from the data ontology, keeping a balance among efficiency, security and privacy. Confronting with heterogeneous and multi-modal personal data, it is able to trace, verify and promote transactions of tokenized data with personal trustworthy AI agents. The system is conducive to attracting high-quality data into transactions by making it easier for superior data to be circulated, and the circulation records further increasing endorsement and adding values for the high-quality data, so as to break through “the Market for Lemons”.