The evolution of the Bitcoin graph. Filtz, E., Polleres, A., Karl, R., & Haslhofer, B. In Proceedings of the 1st International Data Science Conference (iDSC2017), Salzburg, Austria, June, 2017.
The evolution of the Bitcoin graph [pdf]Paper  abstract   bibtex   
Bitcoin as a virtual currency provides means to execute payments in an anonymous way without regulations from central authorities. In this paper we analyze structural properties of the Bitcoin graph and investigate how users behave in the Bitcoin system over time. Our analysis shows for instance that Bitcoin has a highly volatile exchange rate which probably makes it uninteresting for long-term investments; moreover we show how transactions "patterns" have evolved over time.

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