Zero Knowledge

Where we talk about zero knowledge research and the decentralised web

About the show

Zero Knowledge is a podcast which goes deep into the tech that will power the emerging decentralised web and the community building this. The podcast is made for fellow developers and people looking to educate themselves on the inner workings of the space.

We are non-speculative and focus on the tech.

Zero Knowledge is hosted by Anna Rose and Fredrik Harrysson. Our views do not come from nor represent our companies.

Follow us at @fredhrson & @AnnaRRose

If you like the Zero Knowledge Podcast:
Follow us on Twitter
Join us on Telegram
Support our Gitcoin Grant
Support us on Patreon

Or directly here:

ETH: 0xC0FFEE1B5083230a5154F55f253B6b6ae8F29B1a
BTC: 1cafekGa3podM4fBxPSQc6RCEXQNTK8Zz
ZEC: t1R2bujRF3Hzte9ALHpMJvY8t5kb9ut9SpQ

Zero Knowledge on social media


  • Episode 56: Get to know a Core Dev: Martin Holst Swende

    December 19th, 2018  |  37 mins 10 secs
    blockchain, core dev, developer, ethereum, programming, tech

    In this episode, Fredrik sits down Martin, who is a Core Dev working on the Geth client and head of security for the Ethereum foundation. They chat about what got him into the space, his interest in security, and what he would recommend to other devs looking to get into the space.

  • Episode 55: ETHSingapore in review

    December 12th, 2018  |  49 mins 21 secs
    ethereum, ethsingapore, hackathon, hackers, tech education

    In this week's episode, Anna interviews a number of participants at the ETHSingapore hackathon as part of the ETHGlobal series and tries to get a sense for how these hackers are approaching the space.

  • Episode 54: Digging into recursive zkSNARKs with Coda

    December 5th, 2018  |  52 mins 10 secs
    blockchain, coda, cryptography, recursive proof, tech education, zksnarks

    In this week's episode, we sit down with Izaak Meckler & Evan Shapiro from O(1) Labs to discuss Coda, a blockchain using recursive composition of zkSNARKs to eliminate history. We discuss recursive zkSNARKs generally, what a recursive zkSNARK construction blockchain would look like, and the challenges in implementing this sophisticated scaling solution.

  • Episode 53: Get to know a Core Dev: Péter Szilágyi

    November 28th, 2018  |  46 mins 30 secs
    core-dev, developer-interview, ethereum

    In this week's episode, Fredrik sits down with Péter Szilágyi, lead developer of go-ethereum, to talk about his background, what it means to be a Core Dev and some of the struggles of maintaining an open source project.

  • Episode 52: Vlad and Gav go head-to-head on blockchain governance

    November 21st, 2018  |  1 hr 12 mins
    blockchain, gavin wood, governance, on-chain governance, tech talk, vlad zamfir

    In this week's episode, we are joined by a couple greats in the space, Gavin Wood and Vlad Zamfir, to debate the merits of on-chain vs off-chain governance.

  • Episode 51: Exploring Spacemesh with Julian Loss

    November 14th, 2018  |  51 mins 28 secs
    blockchain, proof-of-spacetime, protocol, spacemesh, tech education

    In this episode, we sit down with Julian Loss, a researcher at Spacemesh, to explore DAGs, the Proof-of-Spacetime idea and the Spacemesh project.

  • Episode 50: Zooko talks Zcash on our 50th episode

    November 7th, 2018  |  1 hr 27 mins
    blockchain, cryptography, tech history, zcash, zcash parity, zero knowledge, zksnarks

    In this special 50th episode, we invite our friend Zooko to the podcast to chat about his background and explore the history of Zerocoin and Zcash. We dig into the inner workings of Zcash, the trusted setup, the sapling upgrade, and what the future of the project might look like!

  • Episode 49: Blockchain 101: Cryptoeconomic Primitives and Staking

    October 31st, 2018  |  1 hr
    blockchain, cryptoeconomics, ethereum, game theory, pos, staking, tech education

    In this Blockchain 101 episode, we sit down with Axel Ericsson of Vest to talk about Cryptoeconomic Primitives, incentive models, designing for smart equilibria, and staking.

  • Episode 48: Talking UX with Taylor Monahan of MyCrypto

    October 23rd, 2018  |  57 mins 8 secs
    blockchain, ethereum, etherwallet, mycrypto, tech talk

    In this episode, we sit down with Taylor Monahan of MyCrypto, to discuss how the project got started and share some customer support horror stories. We also reflect on the challenge of building UX that works for people while maintaining the spirit of decentralization, and finally, where she sees the space developing.

  • Episode 47: Chat with Richard Craib from Numerai

    October 17th, 2018  |  43 mins 19 secs
    blockchain, decentralized, erasure, ethereum, hedge fund, numerai, predictions market

    In this episode, we sit down with Richard Craib from Numerai to talk about crowdsourcing the role of a quant, how Numerai developed, their new Erasure project, DApp adoption in Ethereum and what it's like to build a hedge fund fulled by a crypto token.

  • Episode 46: Gavin Wood on Polkadot, Sharding and Substrate

    October 10th, 2018  |  1 hr 5 mins
    blockchain, polkadot, sharding, substrate, web3

    We finally sit down with Gavin to go through a bit of what Parity has been working on with Polkadot and Substrate. We talk about Polkadot early history and who was involved and where the idea spawned, up to coding practices and where Substrate became a thing.

  • Episode 45: P2P messaging with Henri from Streamr

    October 3rd, 2018  |  49 mins 20 secs
    blockchain, messaging, networking, p2p, web3

    In this week's episode, we sit down with Henri Pihkala from Streamr to talk p2p messaging and what it means. We cover topics like pub-sub, compare it to whisper, talk about the needs of different messaging systems.

  • Episode 44: Blockchain 101: Transaction lifecycle & the mempool

    September 26th, 2018  |  57 mins 3 secs
    blockchain, ethereum, mempool, tech education, transaction cue, transaction pool

    In this episode, we are joined by Tomasz Drwięga from Parity Technologies to discuss the lifecycle of a transaction on the Ethereum network and how the mempool works.

    We cover the transaction pool/cue/mempool

  • Episode 43: Hudson Jameson talks EIPs and Ethereum core decision-making

    September 19th, 2018  |  53 mins 26 secs
    blockchain, core devs, decentralised governance, eips, ethereum, governance

    In this episode, Anna chats with Hudson Jameson about how he got involved in the space, the EIP process, and the challenges of decision-making in the decentralised space.

  • Episode 42: ETHPrize & Open Source Block Explorers

    September 12th, 2018  |  46 mins 10 secs

    In this episode, we sit down with Mitch Kosowski, director of product at ETHPrize, and Andrew Cravenho, project leader at POA Network. We cover ETHPrize bounties, the way that pain points in the community are identified, and the open source block explorer that POA Network is building with an ETHPrize bounty.

  • Episode 41: Zokrates with Jacob Eberhardt

    September 5th, 2018  |  50 mins 14 secs
    developer tools, ethereum, tech talk, zero knowledge proofs, zokrates

    In this episode, we had a chance to speak with Jacob Eberhardt about his work on Zokrates, a programming language & toolbox for zkSNARKS on Ethereum.