Tokyo ENS Meetup 2023 June

Transcript

1. Tokyo ENS Meetup
   matoken.eth
   twitter: @makoto_inoue
   ETH Seoul
   3rd June 2023
   

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2. 19:00 = CryptoBaseさんよりご挨拶
   19:05 = WTF is ENS card?
   19:30 = 🍕休憩
   20:00 = ENS for community
   20:30 = ライトニングトーク
   21:30 = 終了
   

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3. CryptoBaseさんよりご挨拶
   By aikikanaya.eth
   

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4. WTF is ENS Card?
   

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9. https://iyk.app/how-to-poap
   

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10. ENS for community
    

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

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12. What is ENS?
    

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13. @ensdomains
    What is ENS?
    0x5a384227b65fa093dec...
    

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14. @ensdomains
    Ethereum Name Service
    matoken.eth
    

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15. @ensdomains
    

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16. @ensdomains
    

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17. What is ENS subname?
    

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18. @ensdomains
    Subname
    

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

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

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21. NFT subnames
    

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

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23. @ensdomains
    Solution: Name Wrapper
    

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24. @ensdomains
    Parent Fuses
    

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25. @ensdomains
    Owner Controlled Fuses
    

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26. @ensdomains
    Examples
    

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

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28. Digital twins
    

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

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

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31. @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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32. @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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33. Gasless
    

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

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

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37. @ensdomains
    cb.id
    

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38. @ensdomains
    lens.xyz
    

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

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41. ライトニングトーク
    

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42. Curvegrid (wentworth.eth)
    wΞlock (tachibana.eth)
    Boarding bridge (taka-crypto.eth)
    Beyond club (manoboba.eth)
    The Greeting (kenichi.eth)
    01.
    02.
    03.
    04.
    05.
    

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43. @ensdomains
    ライトニングトークの模様
    

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44. お疲れ様でした
    matoken.eth
    twitter: @makoto_inoue
    ETH Tokyo Meetup
    ８th June 2023
    

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