# Ouroboros

A variation of Proof-of-stake(with rigorous security guarantees) used by Cardano.

## Used in

* Cardano

## Read more

* [Wikipedia](https://eprint.iacr.org/2016/889.pdf)
* [Ouroboros: A provably secure proof-of-stake blockchain protocol](https://pdfs.semanticscholar.org/1c14/549f7ba7d6a000d79a7d12255eb11113e6fa.pdf). Kiayias A, Russell A, David B, Oliynykov R. '16.