1. GraphSense
Real-time Insight into Virtual Currency Ecosystems
Bernhard Haslhofer, AIT - Austrian Institute of Technology
Austrian Data Forum (ADF)
Vienna, 2015-10-04

3. Bitcoin Ecosystem
• A virtual currency based on a P2P network
• Instant transactions worldwide
• No central authorities and control
• collective transaction management
• collective money issuance
• Public ledger of all transactions (block chain)

4. Goals
• Build algorithms and tools for gaining insight into
evolving virtual currency transaction graphs
• actor roles
• transaction patterns
• currency unit flows
• network topology
• anomalies

5. Approach
Scalable Anomaly
Detection Algorithms
(WP3)
Cross Data Source
Graph Construction
(WP2)
Open
Data
Data
Streaming
(WP1)
Private
Data
Large-Scale Distributed Data Processing Platform
Machine Learning and
Data Mining Libraries
Graph Analytics
Frameworks
GraphSense Analytics Dashboard (WP 4)

6. Project Key Facts
• Duration: 01.09.2015 - 30.08.2017 (24
months)
• Partners:
• AIT - Austrian Institute of Technology
• Braintribe IT Technologies GmbH
• WU Wien - Institute for Information
Business
• Funding: FFG - IKT der Zukunft
• Contact: bernhard.haslhofer@ait.ac.at