English

Note on fair coin toss via Bitcoin

Cryptography and Security 2014-02-18 v1

Abstract

In this short note we show that the Bitcoin network can allow remote parties to gamble with their bitcoins by tossing a fair or biased coin, with no need for a trusted party, and without the possibility of extortion by dishonest parties who try to abort. The superfluousness of having a trusted party implies that there is no house edge, as is the case with centralized services that are supposed to generate a profit.

Keywords

Cite

@article{arxiv.1402.3698,
  title  = {Note on fair coin toss via Bitcoin},
  author = {Adam Back and Iddo Bentov},
  journal= {arXiv preprint arXiv:1402.3698},
  year   = {2014}
}

Comments

See also https://bitcointalk.org/index.php?topic=277048.0

R2 v1 2026-06-22T03:08:56.882Z