The Provenance Store prOOst for the Open Provenance Model

This paper presents the provenance storing system prOOst which uses a semi-structured approach to store the provenance data based on the Open Provenance Model (OPM). It uses the graph database "Neo4j" for storage and the graph traversal language "Gremlin" for querying. Furthermore, it provides a REST interface to record data into the store, and a web front end to query the database. The prOOst provenance system was published as Open Source software and is available on SourceForge.