Martin Derka I EIP 7702 on Ethereum and Rollups What to Build and How I Pragma Taipei 2025

Thu, Oct 2, 2025, 12:00 AM

Martin Derka, co-founder and technical lead at Zirkit, delivers an in-depth technical exploration of EIP-7702 and its transformative potential for Ethereum and rollups. Learn how this new transaction type enables externally owned accounts (EOAs) to temporarily delegate functionality to smart contracts while retaining private key control. Discover practical use cases including batched transactions, smart account protections, automated market maker functionality, and gasless relay services. This talk is essential for developers building next-generation wallets, DeFi protocols, or rollup solutions who want to leverage account abstraction capabilities while maintaining backward compatibility. 00:00 - Introduction to EIP-7702 and Zirkit 01:34 - How EIP-7702 Works: Set Code Functionality 02:44 - New Transaction Type 4 Implementation 03:58 - Technical Deep Dive: Authorization Lists 05:11 - Use Case 1: ETH Spending Approvals & Subscriptions 05:47 - Use Case 2: Private Key-Enabled Multi-Sig Wallets 06:49 - Use Case 3: Personal AMMs from EOAs 07:23 - Use Case 4: Fat Finger Protection for DeFi 08:30 - Protocol Benefits: Enforcing Interaction Templates 09:02 - Use Case 5: Upgradable Account Proxies 09:40 - Smart Contract Template Example 11:24 - Advanced Use: Transaction Batching Explained 12:35 - Comparing Traditional vs. 7702 Transaction Flows 14:18 - Universal Execution with Call Batching 15:56 - Security Considerations for Batched Calls 17:38 - Building Web2-like Relayer Services 18:45 - Zirkit's Implementation & Sequencer Security 19:59 - REST API for Gasless Transactions _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇹🇼 *Pragma Taipei* Pragma Taipei 2025 was held on April 3rd at POPOP in Taipei, Taiwan and was an in-person summit for builders and leaders in the web3 ecosystem. Watch the full Pragma Taipei YouTube Playlist here: ETHGlobal's Pragma series takes place in cities around the world, and is designed to be a different kind of event. Pragma is a one-stage conference with founders-only on stage, bringing together a small group of curated attendees and speakers to discuss the future of web3 and reflect on the past. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ Follow Martin Derka X: https://x.com/dr_zircuit ✅ Follow Zircuit X: https://x.com/ZircuitL2 ✅ Follow Kartik Talwar X: https://x.com/TheRealKartik ✅ Follow ETHGlobal X: https://x.com/ETHGlobal​ Warpcast: https://warpcast.com/ethglobal Website: https://ethglobal.com YouTube: https://www.youtube.com/@ETHGlobal _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Are you interested in Ethereum development and entrepreneurship? 👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events 🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus 📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _