IOHK | Dr. Peter Gaži - Overview of Ouroboros Praos and Ouroboros GenesisIOHK | Dr. Peter Gaži - Overview of Ouroboros Praos and Ouroboros Genesis

In this video, Dr. Peter Gaži explains the research by giving an overview of both Ouroboros Praos and Ouroboros Genesis. With Ouroboros Genesis, for the first time, new users joining the blockchain can bootstrap from the genesis block, and do not need a checkpoint block or any prior knowledge of the number of users active in the system. This feature was previously not possible in proof of stake distributed ledgers while it was a hallmark of proof-of-work protocols. This means that Ouroboros can now match the security guarantees of proof-of-work protocols like Bitcoin in a way that was previously thought infeasible. This advancement is the culmination of a research path that systematically tackled challenges in proof of stake, beginning with Ouroboros, progressing to Ouroboros Praos, and now reaching Ouroboros Genesis. Read the research paper "Composable Proof-of-Stake Blockchains with Dynamic Availability" here: https://iohk.io/research/papers/#AQZE2XCV Ouroboros | IACR Crypto-2017 https://youtu.be/NlmD8W8cEoA IOHK | Developing a secure proof of stake algorithm https://youtu.be/a6G3M2ZQEXc Peter Gaži did his master studies in Computer Science at Comenius University in Bratislava, and obtained his PhD. in Cryptography from ETH Zurich under the supervision of Prof. Ueli Maurer. Later he worked as a postdoc in the Cryptography research group of Prof. Krzysztof Pietrzak at Institute of Science and Technology Austria. Currently, he is a full-time research fellow at IOHK. Peter’s research interests include problems related to security analysis of symmetric cryptography constructions, hash functions and memory-hard functions. His work at IOHK is mostly focused on cryptocurrencies and blockchains. https://iohk.io/team/peter-gazi/ -- Input Output See more at: https://iohk.io Get our latest news updates: https://iohk.io/blog/ Meet the team: https://iohk.io/team/ Learn about our projects: https://iohk.io/projects/cardano/ Read our papers: http://iohk.link/paper-ouroboros Visit our library: https://iohk.io/research/library/ In the press: https://iohk.io/press/ Work with us: https://iohk.io/careers/