1. Nakamoto, S.: Bitcoin: a peer-to-peer electronic cash system (2008). https://bitcoin.org/bitcoin.pdf
2. Namecoin. https://namecoin.org/
3. Worley, C., Skjellum, A.: Blockchain tradeoffs and challenges for current and emerging applications: generalization, fragmentation, sidechains, and scalability. In: Slated for Inclusion at IEEE Blockchain 2018, Halifax (2018)
4. Smart contracts. http://www.fon.hum.uva.nl/rob/Courses/InformationInSpeech/CDROM/Literature/LOTwinterschool2006/szabo.best.vwh.net/smart.contracts.html
5. Ethereum white paper. https://github.com/ethereum/wiki/wiki/White-Paper