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Science, industry, and society are being revolutionized by radical new
capabilities for information sharing, distributed computation, and
collaboration offered by the World Wide Web. This revolution promises
dramatic benefits but also poses serious risks due to the fluid nature of
digital infor- mation. One important cross-cutting issue is managing and
recording provenance, or metadata about the origin, context, or history
of data. We posit that provenance will play a cen- tral role in emerging
advanced digital infrastructures. In this paper, we outline the current
state of provenance research and practice, identify hard open research
problems involving provenance semantics, formal modeling, and security,
and articulate a vision for the future of provenance.
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