Philip Lazos, Elias Koutsoupias, Foluso Ogunlana, Paolo Serafino. Blockchain Mining Games with Pay Forward. In Ling Liu 0001, Ryen W. White, Amin Mantrach, Fabrizio Silvestri, Julian J. McAuley, Ricardo S. Baeza-Yates, Leila Zia, editors, The World Wide Web Conference, WWW 2019, San Francisco, CA, USA, May 13-17, 2019. pages 917-927, ACM, 2019. [doi]