# ENS, Identity in Your Apps I Greg Skrill

- Channel: [ETHGlobal](https://streameth.org/ethglobal)
- Date: 2025-10-09
- Duration: 13:44
- Topics: ENS, Ethereum Name Service, identity, apps, hex addresses, human-readable names, forward resolution, reverse resolution, primary name, ENS profile, avatars, descriptions, multichain, registry, resolver, public resolver, content hash, CCIP Read, EIP-3668, L2 subdomains, Duran, AI agents, DeFi, web3, subnames, custom registration, open source, developer resources, hackathon
- Watch: https://streameth.org/watch/yt-1sy5hakbaR0
- YouTube: https://www.youtube.com/watch?v=1sy5hakbaR0

## Description

Greg Skril from ENS Labs presents on integrating ENS (Ethereum Name Service) for identity in applications. ENS is a decentralized, permissionless naming protocol on Ethereum that maps complex hex addresses to human-readable names, similar to how DNS maps IPs to domains. ENS supports forward (name-to-address) and reverse (address-to-name) resolution, enabling user profiles with avatars, descriptions, and addresses across multiple chains.

The ENS registry and resolvers (including the public resolver) store addresses, text records, and content hashes, supporting decentralized websites and cross-chain functionality. ENS also supports off-chain data resolution via CCIP Read (EIP-3668), enabling flexible L2 subdomains. Developers are encouraged to replace hex addresses with ENS names in wallets, AI agents, DeFi apps, and social platforms. Tools like Duran simplify L2 subname creation and primary name assignment. The talk concludes with resources, hackathon prize categories, and a walkthrough of Duran for deploying ENS subdomains and customizing registration logic.

00:00 Introduction  
00:36 What is ENS?  
01:21 Forward and Reverse Resolution  
02:29 ENS Profiles and Primary Names  
03:11 Importance and Purpose of ENS  
03:59 ENS Registry and Resolvers  
04:23 Public Resolver: Addresses, Text Records, Content Hash  
05:53 Decentralized Websites and Content Hash  
06:15 Subdomains and Off-chain Resolution (CCIP Read)  
07:37 Building with ENS: Use Cases  
09:07 Developer Resources: Duran and L2 Primary Names  
10:10 Hackathon Prizes and Support  
11:30 Duran Walkthrough: Creating L2 Subnames  
13:23 Conclusion and Support

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🇫🇷 *ETHGlobal Cannes*
This workshop is specifically for ETHGlobal Cannes, a 3-day hackathon held July 4-6, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! Watch the full ETHGlobal Cannes 2025 playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh5N2DCwhcEshNW9C8knZ1T-&si=Lc-WOyfkAVP2--R4

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✅ *Follow Greg Skril*
X: https://x.com/gregskril

✅ *Follow ENS*
X: https://x.com/ensdomains

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X: https://x.com/ETHGlobal​
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Website: https://ethglobal.com
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