End-to-End Data Commodity Delivery Based on Metadata

By investigating the status of data commodity delivery after the completion of payment transactions by mainstream data trading platforms at home and abroad, this paper proposes an end-to-end data commodity delivery solution based on metadata. Designed and developed a secure, automated and standardized data service API interface specification from the two aspects of data commodity content description and acquisition method, and recorded data products, transactions and delivery process information on the blockchain. Effectively support the registration and authentication of data products, transaction process management, data demanders' understanding and use of purchased data, and market supervision.