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Provenance, the metadata that records the derivation history of scientific results, is essential in scientific workflows to support the reproducibility of scientific discovery, result interpretation, and problem diagnosis. To promote and facilitate interoperability among heterogeneous provenance systems, the Open Provenance Model (OPM) was first proposed in 2008 and since then has played an important role in the community. In this paper, the authors present OPMProv, a relational database-based scientific workflow provenance system, that is compliant with OPM (v1.1).
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