Abstract: Data rights confirmation is essential for realizing the value of data elements and sustaining the normal operation and continuous development of data elements market. This study delves into concepts related to data rights confirmation and explores the path of how to establish a property right system to realize data rights confirmation. Furthermore, this study shows methods for the data classified and graded rights confirmation, analyzing their impact across the data value chain. Results show that in the data collection stage, the data classified and graded rights confirmation mechanism can motivate data supply, improve data quality, and stimulate market vitality. In the data organization stage, it can break down technical work, protect private data, and explore potential value. In the data circulation stage, it can regulate negative externalities, reduce transaction costs, and optimize the allocation of resources. And in the data utilization stage, it plays a key role in data compliance regulation and data value redevelopment.

Key words: Data classified and graded, Rights confirmation, Value chain, Data element, Value realization