In this week’s episode, Anna and Fredrik chat with Alin Tomescu (https://twitter.com/alinush407), a post-doc researcher at VMWare Research Group (https://research.vmware.com/reserchers/alin-tomescu), about the concept of stateless systems. Specifically, they explore his work on stateless validation, why this would be desirable and what is the state of the research around this topic. Have a look at Alin’s previous zkStudy Club episodes: zkStudyClub: Alin Tomescu on authenticated dictionaries and cross-incremental proof (dis)aggregation (https://www.youtube.com/watch?v=PrgeQJioCI8) & zkStudyClub: Aggregatable Subvector Commitments with Alin Tomescu (VMWare Research) (https://youtu.be/KGRnpjPjduI) This episode is packed full of info and Alin shared an amazing list of resources to help navigate this : RMCI17e, Improving Authenticated Dynamic Dictionaries, with Applications to Cryptocurrencies (https://eprint.iacr.org/2016/994), Leonid Reyzin and Dmitry Meshkov and Alexander Chepurnoy and Sasha Ivanov CPZ18, Edrax: A Cryptocurrency with Stateless Transaction Validation (https://eprint.iacr.org/2018/968), 2018, Alexander Chepurnoy and Charalampos Papamanthou and Yupeng Zhang BBF18, Batching Techniques for Accumulators with Applications to IOPs and Stateless Blockchains (https://eprint.iacr.org/2018/1188), 2018, Dan Boneh and Benedikt Bünz and Ben Fisch Tome20, How to Keep a Secret and Share a Public Key (Using Polynomial Commitments) (https://alinush.github.io/papers/phd-thesis-mit2020.pdf), 2020, Tomescu, Alin, CFG+20, Vector Commitment Techniques and Applications to Verifiable Decentralized StorageQ