May 27th, 2020 | 59 mins 11 secs
blockchain, decentralisation, nyu, proof of necessary work, proof of stake, proof of work, snarks
In this week's episode, Anna and guest host Tarun Chitra chat with Akis Kattis, a PhD student at NYU & the co-author of Proof of Necessary Work: Succinct State Verification with Fairness Guarantees - a paper he co-wrote with Joseph Bonneau. They discuss the challenge of Proof of Useful Work, the unique properties that SNARKs have, such as puzzle hardness, that allow for PoNW to overcome these challenges, PoS SNARK systems, elastic block construction, and more.
April 29th, 2020 | 1 hr 2 mins
blockchain, consensus, consensus protocols, cryptography, hotstuff, libra, proof of stake, vmware
In this week's episode, we go deep on Consensus Algorithms and HotStuff with Ittai Abraham from VMware Research. We chat about the evolution of consensus algorithms, BFT, and how these early ideas have become the backbone of blockchain tech. We cover PBFT, Tendermint and Ittai's research into SBFT, HotStuff, and the improvements he has been working on since HotStuffs incorporation into Facebook's Libra protocol.