ENS for your community - Speaker Deck

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ENS for your community matoken.eth twitter: @makoto_inoue SPAGHETTETH II 25th May 2023

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ENS and subname NFT subnames Digital Twins Gasless names 01. 02. 03. 04.

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What is ENS subname?

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@ensdomains What is ENS? 0x5a384227b65fa093dec...

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@ensdomains Ethereum Name Service matoken.eth

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@ensdomains Subname

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@ensdomains Subname - No registration fee - Anyone can issue - Great way to onboard new users

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@ensdomains Subname - No registration fee - Anyone can issue - Great way to onboard new users - Not NFT (unlike .eth) - Cost gas

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NFT subnames

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@ensdomains Problem recap - Not NFT - Parent can override child - Parent expiration affect subnames

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@ensdomains Solution: Name Wrapper

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@ensdomains Parent Fuses

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@ensdomains Owner Controlled Fuses

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@ensdomains Examples

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@ensdomains Fuse book https://mdtanrikulu.github.io/fusebook

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Digital twins

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@ensdomains Problem: I want to issue subdomains to my NFT owners - Ownership of subdomain follows the ownership of the NFT

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@ensdomains Solution: ENSIP 10: Wildcard . .eth .doodle.eth *.doodle.eth resolve(“1.doodle.eth”) resolve(“1.doodle.eth”)

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@ensdomains Solution: ENSIP 10: Wildcard . .eth .doodle.eth *.doodle.eth resolve(“1.doodle.eth”) resolve(“1.doodle.eth”) Doodle NFT ownerOf(1)

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@ensdomains Example in the wild https://twitter.com/adraffy/status/1653679293418049536 - Gasless - No events - 0.05 eth to map the name - “experimental”

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Gasless

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@ensdomains Problem: I want to issue subdomains at events to participants for “free” - Creating subnames cost gas

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@ensdomains Solution EIP3668: Secure Offchain data retrieval (aka CCIP-read) . .eth .matoken.eth *.matoken.eth resolve(“a.matoken.eth”) resolve(“a.matoken.eth”) L2/Offchain Gateway service

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@ensdomains Intuition => NFT metadata https://leftasexercise.com/2021/10/03/using-nft-metadata-to-safely-store-digital-assets/

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@ensdomains cb.id

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@ensdomains lens.xyz

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@ensdomains Offchain - DBMS / Side chains - No or little gas - Truested - In Production - cb.id/.lens Offchain vs L2 L2 - Optimistic/ZK Rollup - Little gas - On chain verifiable - Trust Minimized - No production (Yet) - POC on Optimism/Arbitrum

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@ensdomains Demo pack https://github.com/gskril/ens-offchain-registrar

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Issue subdomains to your community matoken.eth twitter: @makoto_inoue SPAGHETTETH II 25th May 2023