Hacking ENS
summary
ENS predates the NFT boom but a 2019 upgrade makes .eth names ERC-721 minting so hundreds of thousands of names trade on OpenSea; about 400,000 names exist and short-name auctions drove surprising bids. Architecture is registry → resolver (namehash/labelhash), and registrars/controllers issue names; a recent registry bug forces migration of ~200 projects. Examples built and working: a Decentraland registrar that mints subdomains as NFTs, custom resolvers for multi‑coin/content records, and an indexer using The Graph subgraph alongside web3.js/ethers.js integrations.
AI-written summary · about
chapters (10)
- 0:00Introduction to ENS
- 1:46Hackathon idea for ENS
- 4:58ENS goals and architecture
- 6:22ENS basics: Names and resolvers
- 9:55Building ENS resolver
- 12:41Custom records for ENS
- 17:01Custom registrars and subdomains
- 23:10Controller vs registrant in ENS
- 27:25ENS hacking tips
- 28:10Q&A








