Bitcoin Alpha

Context

This is who-trusts-whom network of people who trade using Bitcoin on a platform called Bitcoin Alpha. Since Bitcoin users are anonymous, there is a need to maintain a record of users' reputation to prevent transactions with fraudulent and risky users. Members of Bitcoin Alpha rate other members in a scale of -10 (total distrust) to +10 (total trust) in steps of 1. This is the first explicit weighted signed directed network available for research.

Content

Each line has one rating with the following format:
SOURCE, TARGET, RATING, TIME, where:

• SOURCE: node id of source, i.e., rater
• TARGET: node id of target, i.e., ratee
• RATING: the source's rating for the target, ranging from -10 to +10 in steps of 1
• TIME: the time of the rating, measured as seconds since Epoch.

Acknowledgements

• S. Kumar, F. Spezzano, V.S. Subrahmanian, C. Faloutsos. Edge Weight Prediction in Weighted Signed Networks. IEEE International Conference on Data Mining (ICDM), 2016.
• S. Kumar, B. Hooi, D. Makhija, M. Kumar, V.S. Subrahmanian, C. Faloutsos. REV2: Fraudulent User Prediction in Rating Platforms. 11th ACM International Conference on Web Searchand Data Mining (WSDM), 2018.