Episode 156: Stateless Validation with Alin Tomescu

In this week’s episode, Anna and Fredrik chat with Alin Tomescu, a post-doc researcher at VMWare Research Group, 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 & zkStudyClub: Aggregatable Subvector Commitments with Alin Tomescu (VMWare Research)

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, Leonid Reyzin and Dmitry Meshkov and Alexander Chepurnoy and Sasha Ivanov
CPZ18, Edrax: A Cryptocurrency with Stateless Transaction Validation, 2018, Alexander Chepurnoy and Charalampos Papamanthou and Yupeng Zhang
BBF18, Batching Techniques for Accumulators with Applications to IOPs and Stateless Blockchains, 2018, Dan Boneh and Benedikt Bünz and Ben Fisch
Tome20, How to Keep a Secret and Share a Public Key (Using Polynomial Commitments), 2020, Tomescu, Alin,
CFG+20, [Vector Commitment Techniques and Applications to Verifiable Decentralized Storage](https://eprint.iacr.org/2020/149], 2020, Matteo Campanelli and Dario Fiore and Nicola Greco and Dimitris Kolonelos and Luca Nizzardo
GRWZ20, Pointproofs: Aggregating Proofs for Multiple Vector Commitments, 2020, Sergey Gorbunov and Leonid Reyzin and Hoeteck Wee and Zhenfei Zhang
TAB+20e, Aggregatable Subvector Commitments for Stateless Cryptocurrencies, 2020, Alin Tomescu and Ittai Abraham and Vitalik Buterin and Justin Drake and Dankrad Feist and Dmitry Khovratovich
LGG+20, Aardvark: A Concurrent Authenticated Dictionary with Short Proofs, 2020, Derek Leung and Yossi Gilad and Sergey Gorbunov and Leonid Reyzin and Nickolai Zeldovich
AR20, KVaC: Key-Value Commitments for Blockchains and Beyond, 2020, Shashank Agrawal and Srinivasan Raghuraman
TXN20, Authenticated Dictionaries with Cross-Incremental Proof (Dis)aggregation, 2020, Alin Tomescu and Yu Xia and Zachary Newman


zkSummit6 is happening on Nov 23-24 2020 – grab your spot: https://www.zksummit.com/


Thanks to this week's sponsor Parity Technologies.

Check out Polkadot Decoded happening on December 3rd.

This free online event is the Polkadot community conference and the first Polkadot gathering since the multi-chain network’s launch and decentralization.

Featuring a full program of talks on all aspects of Polkadot by the teams building the network’s core technology, as well as those building ecosystem parachains, applications, and cross-network bridges Whether you’re new to Polkadot or an experienced Polkadot community member, be sure to learn the latest and future developments in the Polkadot ecosystem and connect with the Polkadot community.

Check out the full program for Polkadot Decoded and register for free at decoded.polkadot.network

Thanks again Parity Technologies!


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Previous Episodes

Episode 239: IST and Designing Stablecoins in Cosmos

In this week’s episode, Anna catches up with Zaki from Sommelier and Dean from Agoric. They check-in with the latest project news, recap about the UST collapse, and look into IST – Inter Stable Token – a project by the Agoric team that aims to become the Cosmos native multi collateral stablecoin.

Bonus: Apply to zkSummit 8

No full episode this week. Just a quick message to let you know about the upcoming zkSummit 8 – happening in Berlin Sept 15 2022.

Episode 238: Aurora and Near with Alex and Illia

In this week’s episode, Anna talks with Illia from Near and Alex from Aurora about the work they did that lead them to the Near ecosystem and what the connection is between the Aurora project and Near. They also cover what’s new at Near since the last time Illia and Anna spoke, Aurora+, the Rainbow Bridge, and future plans with Near’s sharding system.

Episode 237: Exploring ZK Research with Jens Groth

In this week’s episode, Anna and Kobi chat with guest Jens Groth, Director of Research at DFINITY and previously professor at Department of Computer Science, UCL. Jens Groth is a leading ZK researcher and is behind a number of advances in the field of ZK in the last few years such as the popular proving system Groth16. The conversation covers his earlier career, the cryptographic problems he tackled in his research, how he solved these, the results of this work as well as his move from research into industry and what he works on today.

Episode 236: Aztec Connect and Private DeFi with Charlie and Joe

In this week’s episode, Anna checks in with Aztec, a ZK-based privacy L2 project. She speaks with Joe Andrews and Lead Engineer, Charles Julian. They discuss some of the team’s most important ZK research and implementations such as Plonk and how bringing privacy to Ethereum could truly change the way we do DeFi. They also discuss Aztec Connect and how it relates to zk.money, the Aztec roadmap with future projects like DSL Noir and Aztec 3, as well as a quick postmortem on the halted Aztec Connect launch.

Episode 235: Mathematical Journeys & Sake with Guillermo Angeris

In this week’s episode we return back to DevConnect in Amsterdam for a conversation between Anna and returning guest Guillermo Angeris of Bain Capital Crypto for a couple of shots of sake and math! They cover Guillermo’s personal journey into math, math history in general, consider how to bring more people into the space and the potential opportunities and downsides of bringing some kinds of math mainstream.

Episode 234: zkEVM with Scroll’s Ye Zhang and Haichen Shen

In this week’s episode, Anna and Tarun chat with Ye Zhang and Haichen Shen, the founders of Scroll – a native zkEVM Layer 2 Solution for Ethereum. They cover Scroll’s founding, the need to scale Ethereum, zkEVM philosophies, use cases and more. They wrap up with an exploration of how DApps and products on top of such as zkEVM may interact with the mainchain and with other applications.

Episode 233: Through the Wormhole with Jump Crypto

In this week’s episode, Anna chats with Rahul Magani, the applied zk lead at Jump Crypto, and Hendrik Hofstadt, project lead at Wormhole Crypto. They look at how Wormhole first came to be, the challenges of interoperability, the design decisions they made in balancing security, speed and functionality, the risks facing these types of solutions, including the famous Wormhole hack, what the future holds and how they aim to explore using zk in bridging.

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