{"podcast":{"title":"Zero Knowledge","slug":"zero-knowledge-1048106","podcast_index_feed_id":1048106,"rss_url":"https://feeds.captivate.fm/zeroknowledge/","website_url":"https://www.zeroknowledge.fm","image_url":"https://artwork.captivate.fm/eed81918-5c2c-4ed4-9ddc-11dbb519e2dd/cover.jpg","author":"Zero Knowledge Podcast","episode_count":420,"summary":"Zero Knowledge is a podcast which goes deep into the tech that will power the emerging decentralised web and the community building this. Covering the latest in zero knowledge research and applications, the open web as well as future technologies and paradigms that promise to change the way we interact — and transact — with one another online. Zero Knowledge is hosted by Anna Rose Follow the show at @ZeroKnowledgefm (https://twitter.com/zeroknowledgefm) or @AnnaRRose (https://twitter.com/AnnaRRose) If you like the Zero Knowledge Podcast: Join us on Telegram (https://t.me/joinchat/TORo7aknkYNLHmCM) Support our Gitcoin Grant (https://gitcoin.co/grants/38/zero-knowledge-podcast) Support us on Patreon (https://www.patreon.com/zeroknowledge) Or directly here: ETH: 0x4BF66E52f3009Cd138e48f142D47661037160001 BTC: 1cafekGa3podM4fBxPSQc6RCEXQNTK8Zz ZEC: t1R2bujRF3Hzte9ALHpMJvY8t5kb9ut9SpQ DOT: 14zPzb7ihiBeaUn9jdPW9cHKGBd9qtTuJE75hhW2CvzLh6rT","last_synced_at":"2026-07-30T02:18:37.841188+00:00","page_url":"https://stenobird.com/podcast/zero-knowledge-1048106"},"episode":{"title":"lean Ethereum Part 2: PQ Signatures and Poseidon with Dmitry and Benedikt","slug":"lean-ethereum-part-2-pq-signatures-and-poseidon-with-dmitry-and-benedikt","published_at":"2026-02-25T13:00:00+00:00","page_url":"https://stenobird.com/podcast/zero-knowledge-1048106/lean-ethereum-part-2-pq-signatures-and-poseidon-with-dmitry-and-benedikt","show_page_url":"https://stenobird.com/podcast/zero-knowledge-1048106","url":"https://zeroknowledge.fm/podcast/392","audio_url":"https://episodes.captivate.fm/episode/22d0e94a-1a6f-49cd-bf68-39297b7307d7.mp3","summary":"https://www.youtube.com/watch?v=xh8hbz1nqxQ In this episode, Nico Mohnblatt speaks with Benedikt Wagner and Dmitry Khovratovich , cryptography researchers at the Ethereum Foundation , for the second instalment of the lean Ethereum miniseries. They explore leanSig, a hash-based multi-signature scheme designed as a post-quantum replacement for BLS in Ethereum consensus. The conversation walks through how one-time signatures and Merkle trees can be combined to support long-lived validators, and why SNARK-based aggregation is needed in a post-quantum setting. The talk touches on key tradeoffs like signature size versus verification speed, encoding challenges behind their At the Top of the Hypercube work, and the role of Poseidon as the core hash function. Related Links lean Ethereum Part 1: Introduction with Justin Drake lean Ethereum Lean Consensus R&D Progress leanSig Implementation Poseidon2: A Faster Version of the Poseidon Hash Function At the Top of the Hypercube – Better Size-Time Tradeoffs for Hash-Based Signatures Hash-Based Multi-Signatures for Post-Quantum Ethereum Technical Note: LeanSig for Post-Quantum Ethereum Aborting Random Oracles: How to Build them, How to Use them The Billion Dollar Merkle Tree Poseidon: A New Hash Function for Zero-Knowledge Proof Systems Poseidon Cryptanalysis Initiative     Applications to speak at zkSummit14 are now open! This edition will be more intimate with limited spots — we recommend applying early. Apply at www.zksummit.com   zkMesh+ live! Subscribe for zkMesh+ and catch the latest State of ZK 2025 report.     **If you like what we do:** * Find all our links here! @ZeroKnowledge | Linktree * Subscribe to our podcast newsletter * Follow us on Twitter @zeroknowledgefm * Join us on Telegram * Catch u…","meta_description":"https://www.youtube.com/watch?v=xh8hbz1nqxQ In this episode, Nico Mohnblatt speaks with Benedikt Wagner and Dmitry Khovratovich , cryptography researchers…","key_points":[],"chapters":[],"topics":[],"duration_seconds":2111,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/zero-knowledge-1048106/episodes/lean-ethereum-part-2-pq-signatures-and-poseidon-with-dmitry-and-benedikt/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/zero-knowledge-1048106/lean-ethereum-part-2-pq-signatures-and-poseidon-with-dmitry-and-benedikt.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}