关键词: 溯源, 对象存储系统, 文件格式分析, 溯源系统

Abstract:  Provenance is metadata that describes the ancestry or history of a digital object. Provenance enhances the value of the data it describes, as it provides answers to questions such as: How is this object created? What other object does this object depend on? How do the ancestries of these two objects differ? This paper analyzes the advantages  of using objected-based storage system to store and manage provenance information, designs and implements how to use object-based storage architecture to collect and store provenance information. The system collects the kernel information by using system-status files, uses the JHOVE application to analyze file formats, and uses the Linux   audit to monitor ordinary user applications on object-based storage client, and then encapsulates these provenance information into objects, stores them in Berkeley DB or log files in object-based storage devices. The measurement results show that the provenance-aware system based on object-based storage system has a good performance in terms of provenance collection, storage and query.

Key words: provenance, object-based storage system, file format analysis, provenance-aware system