BlockChainJAM 2018

Presentation at BlockChainJAM 2018 ( https://blockchainjam.org/ )

Transcript

1. 0x Protocol @1VQ9 and Whitney 2018/10/21 @ BlockChainJAM 2018
3. http://bit.do/0xjp
4. Y
   QSPUPDPM
   Λ࢖༻͢Δ
   E"QQT
   ։ൃऀͷίϛϡχςΟ
   Y
   QSPUPDPM
   ͷٕज़తͳϊ΢ϋ΢ͷ஝ੵɺڞ༗
   ΨόφϯεϞσϧ΍ؔ࿈ϓϩδΣΫτͳͲʹؔ͢Δ৘ใͷڞ༗
   d
   ϲ݄ʹճఔ౓ͷษڧձ 0x Community Japan (TBD) http://bit.do/0xjp
6. World in which all forms of value are tokenized on public blockchains ༷ʑͳܗͷՁ஋͕ύϒϦοΫɾνΣʔϯ্ͰτʔΫϯԽ͞Εͨੈք ௨՟ ैདྷͷࢿ࢈ σδλϧͳ঎඼ Currency Traditional Assets Digital Goods
7. ! " # $ ! શͯͷਓ͕ࣗ༝ʹ࢖͏͜ͱ͕Ͱ͖Δɺޮ཰తͰɺಁ໌ੑͷ୲อ͞Εͨ ۚ༥ΠϯϑϥετϥΫνϟ͕ඞཁ ! ! % " & ! !
8. ' ! ! ! ! ! ! ! !
9. ' ! ! ! ! ! ! ! ! With centralized exchange, users has to give control of their assets to trusted third party தԝूݖతͳऔҾॴͰ͸ɺऔҾΛߦ͏ࡍʹɺ৴ པ͞Εͨୈࡾऀʹࢿ࢈Λ༬͚Δඞཁ͕͋Δ
10. 2014/2 2016/4 2016/8 2018/1 2018/9 2018/7 2017/7 Hacked Seized
11. ' ! ! ( Trusted third party can be a risk of privacy ৴པ͞Εͨୈࡾऀ͕ϓϥΠόγʔͷϦεΫͱͳΔՄೳੑ͕ଘࡏ͢Δ
12. “Create a tokenized world where all value can flow freely.” zશͯͷՁ஋͕ࣗ༝ʹߦ͖དྷ͢ΔɺτʔΫϯԽ͞ΕͨੈքΛ࡞Δz 0xͷϛογϣϯ 0x Mission Statement
13. ୭Ͱ΋ࣗ༝ʹ࢖͑ΔɺτϥετϨεʹτʔΫϯΛަ׵͢Δ͢ΔͨΊͷϓϩτί ϧɻ෼ࢄऔҾॴͰ͸ͳ͍ɻ
    εϚʔτίϯτϥΫτͷηοτͱͯ͠࡞ΒΕ͓ͯΓɺ։ൃऀ͸ϓϩτίϧΛར ༻ͯ͠ɺ&3$τʔΫϯͷऔҾॴ΍ϚʔέοτϓϨΠεΛ։ൃͰ͖Δɻ
    ΢ΥϨοτ͔Β΢ΥϨοτ΁ɺ௚઀औҾ͢Δ͜ͱ͕Մೳɻ
    Y
    QSPUPDPM
    Λ࢖༻͢Δ෼ࢄऔҾॴಉ࢜ͰɺྲྀಈੑΛڞ༗Մೳɻ
    7FSTJPO
    
    ͕
    
    ʹϦϦʔε͞Εɺ
    7FSTJPO
    
    ͕
    
    ʹϦϦʔε͞Εͨɻ 0x protocol: τϥετϨεͳτʔΫϯަ׵ͷͨΊͷΦʔϓϯͳϓϩτίϧ
14. ! Maker ! Taker Exchange contract ) )
15. ! Maker ! Taker Exchange contract makerAddress 0x000… makerAssetData ZRX makerAssetAmount 237 takerAddress 0x000… takerAssetData WETH takerAssetAmount 1 Order Object (JSON) ! ϝΠΧʔ͸஫จ಺༰Λهࡌͨ͠
    0SEFS
    ΦϒδΣΫτΛ࡞੒͠ɺ ॺ໊͢Δ Maker creates order object and sign it ) )
16. ! Maker ! Taker Exchange contract Signed Order Object (JSON) * ϝΠΧʔ͸
    ॺ໊ࡁ
    0SEFS
    ΦϒδΣΫτΛ
    5BLFS
    ͱڞ༗͢Δ ) ) Maker shares signed Order object with Taker
17. ! Maker ! Taker Exchange contract Signed Order Object (JSON) * ςΠΧʔ͸਺ྔΛࢦఆͯ͠
    &YDIBOHF
    DPOUSBDU
    ͷϝιουΛݺͼग़͢ ) ) Taker invoke method of Exchange contract with amount to fill
18. ! Maker ! Taker Exchange contract &YDIBOHF
    ίϯτϥΫτ͕͓ޓ͍ͷ΢ΥϨοτͷؒͰτʔΫϯͷަ׵Λߦ͏ Exchange contract transfers tokens for each wallet directly ) ) ! 1 WETH 237 ZRX
19. ! ! τϥετϨεʹՁ஋Λަ׵͢ΔͨΊͷϓϩτίϧ Trust-less protocol for exchanging values ΦϑνΣʔϯͰ஫จΛϦϨʔ͠ɺΦϯνΣʔϯͰ໿ఆ Off-chain order relay, On-chain settlement
20. ERC20 Token ERC721 Non Fungible Token 7FSTJPO
    
    Ͱ͸ɺ
    "TTFU1SPYZ
    ʹΑΓ &3$
    ͚ͩͰͳ͘
    &3$
    ʹ΋ରԠͨ͠ɻ ରԠ͢Δࢿ࢈ͷछྨ͸ࠓޙ૿͍͑ͯ͘༧ఆ In version 2, protocol supports ERC721 not only ERC20. Supporting asset classes are going to increase.
21. σϦόςΟϒ ϨϯσΟϯά τʔΫϯ
    όεέοτ Derivative Lending Token Basket 0x
    ϓϩτίϧ্ʹ࡞ΒΕ༷ͨʑͳϓϩτίϧ Protocols build on 0x protocol
22. 5SBEJOH
    XJEHFU
    ʹΑͬͯɺ΢ΣϒΞϓϦɺE"QQT
    ʹ؆୯ʹऔҾͷػೳΛ௥ՃՄೳʹ Trading widget will allow integrate trading feature to any web apps and dApps.
23. ϦϨʔϠʔ Relayers
24. ! Maker ! Taker Exchange contract Signed Order Object (JSON) * ) ) Signed Order Object (JSON) * Order Object (JSON) ! 0SEFS
    ΦϒδΣΫτͷ࡞੒΍໿ఆɺΦʔμʔϒοΫͷ؅ཧɺΠϯλʔϑΣʔεͷఏ ڙͳͲΛߦ͏ͷ͕ϦϨʔϠʔͷ໾ׂ Relayers maintains order book, provides user interface, creates order object and fill them
25. 4UBOEBSE
    3FMBZFS
    "1*
    ʹ४ڌ͢Δ͜ͱͰɺ3FMBZFS
    ಉ͕࢜ྲྀಈੑΛڞ༗͢Δ͜ͱ͕Մೳ With Standard Relayer API, Relayers can share their liquidity pool ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Liquidity Pool ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Liquidity Pool Relayer B Relayer A Standard Relayer API
26. 10+ Relayers $612,483 24H Network volume* * 2018/10/18, https://0xtracker.com
27. Network volume Fills https://0xtracker.com
28. Network volume Fills https://0xtracker.com 
    ϝΠϯωοτʹϦϦʔε Launched on Main net at 2017/10/9