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BancorProtocol
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Taiki
July 10, 2018
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BancorProtocol
Taiki
July 10, 2018
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Transcript
$3:1 (&&, τʔΫϯͷྲྀಈੑͱBancor
$3:1 (&&, @r_etx -*/&$MPWB Taiki Kawa ౦ژۀେֶཧֶՊଔۀɾम࢜2 LINE ClovaͰ6ϲ݄ؒPM ݱࡏෳͷBlock
Chain ελʔτΞοϓͰBlockchainͷ։ൃ ϝσΟΞࣄۀͰ׆ಈ ࠷ۙɺPlasmͱCosmosͱlocalܦࡁʹڵຯ͕Δɻ CONSENSYS MEDIA Crypto AGE
$3:1 (&&, ౦େͰɺ
$3:1 (&&, िʹҰɺ༵ޕલ10࣌ʙɺॴौ୩ͳͲ Ethereumؔ࿈ٕज़ɺ҉߸ֶͳͲΛओʹͬͯ·ͨ͠ ɹ wallet։ൃ(iOS,Android)ɺࢄγεςϜ + LT ษڧձ
$3:1 (&&, ͳʹΛษڧ͍ͯ͠Δ͔ৄ͘͠Γ͍ͨਓɼMediumΛɻ ·ͨɺFacebookάϧʔϓ “౦େϒϩοΫνΣʔϯݚڀձ” ʹͯৄࡉΛ࿈བྷͯ͠·͢
$3:1 (&&, @CrypGeek
$3:1 (&&, @CrypGeek ڵຯ͋Δํ୭ͰwelcomeͳͷͰΛ͔͚͍ͯͩ͘͞!
$3:1 (&&, τʔΫϯͷྲྀಈੑͱBancor
$3:1 (&&, Contents ೋॏͷཉٻͷҰகͱ՟ฎ τʔΫϯΤίϊϛʔ Bancorʹ͍ͭͯ Ձܾ֨ఆํఔࣜ Ҭ௨՟(kenya)
$3:1 (&&, Problem τʔΫϯΤίϊϛʔɺDapps͕࣮༻్Ͱ׆༻͞ΕΔΑ͏ ʹͳΔʹ͍͔ͭ͘ͷ՝͕͋Δɻ
$3:1 (&&, Problem Scalability Interoperability Liquidity
$3:1 (&&, Scalability(εέʔϥϏϦςΟ) τϥϯβΫγϣϯ͕ͯ͘ίετ͕ߴ͍ Problem
$3:1 (&&, Plasma, Lightningnetwork, Sharding, Casper Problem Scalability(εέʔϥϏϦςΟ) τϥϯβΫγϣϯ͕ͯ͘ίετ͕ߴ͍
$3:1 (&&, Problem Interoperability(ΠϯλʔΦϖϥϏϦςΟ) ҟͳΔνΣʔϯʹ͓͚Δ૬ޓӡ༻ੑ͕ͳ͍
$3:1 (&&, Problem Cosmos, Polkadot Interoperability(ΠϯλʔΦϖϥϏϦςΟ) ҟͳΔνΣʔϯʹ͓͚Δ૬ޓӡ༻ੑ͕ͳ͍
$3:1 (&&, Liquidity(ϦΫΠσΟςΟ) ྲྀಈੑ Problem
$3:1 (&&, Bancor Liquidity(ϦΫΠσΟςΟ) ྲྀಈੑ Problem
$3:1 (&&, ྲྀಈੑͱ ͷΞηοτͷऔҾͷ͢͠͞ɺΒ͔͞ɻ ྲྀಈੑ͕ߴ͍ͱങ͍͍ͨͱ͖ʹɺ͙͢ʹങ͑Δɻ ചΓ͍ͨͱ͖ʹɺ͙͢ʹചΕΔɻ Problem
$3:1 (&&, Double co-incidence of wants Bob͕މຑ౾Λ͍࣋ͬͯͯɺ͜ΕΛཛͱަ͍ͨ͠ɺ ཛΛ͍࣋ͬͯͯމຑ౾͕ཉ͍͠ਓΛݟ͚͍ͭͨɻ ަ͍ͨ͠
$3:1 (&&, Double co-incidence of wants ఏҊ Bob͕މຑ౾Λ͍࣋ͬͯͯɺ͜ΕΛཛͱަ͍ͨ͠ɺ ཛΛ͍࣋ͬͯͯމຑ౾͕ཉ͍͠ਓΛݟ͚͍ͭͨɻ ೋॏͷཉٻͷҰக(Double
co-incidence of wants)͕ඞཁɻ ަ͍ͨ͠ ަ͍ͨ͠ Ϛονϯά
$3:1 (&&, Double co-incidence of wants ఏҊ ཉ͍͠ͷͰͳ͔ͬͨΒஅΔ Bob͕މຑ౾Λ͍࣋ͬͯͯɺ͜ΕΛཛͱަ͍ͨ͠ɺ ཛΛ͍࣋ͬͯͯމຑ౾͕ཉ͍͠ਓΛݟ͚͍ͭͨɻ
ೋॏͷཉٻͷҰக(Double co-incidence of wants)͕ඞཁɻ ަ͍ͨ͠
$3:1 (&&, Double co-incidence of wants ՟ฎɺΈͳڞ௨ʹͲͷ࣌ͰՁΛײ͡Δͷɻ ୯Ұ՟ฎΛ༻͍Δ͜ͱʹΑͬͯ͜ͷΛղܾͰ͖ͨɻ ఏҊ ঝ͢Δ
ަ͍ͨ͠ ަ͍ͨ͠
$3:1 (&&, Double co-incidence of wants τʔΫϯΤίϊϛʔͰ༷ʑͳਓ͕༷ʑτʔΫϯΛ͍࣋ͬͯΔɻ ॴ༗ऀ͕গͳ͍ϚΠφʔͳτʔΫϯͰɺೋॏͷཉٻͷҰக ͕ى͜Γʹ͍͘ɻ
$3:1 (&&, Problem • ചΓͨͯ͘ചΕͳ͍ • ങ͍ͨͯ͘ങ͑ͳ͍ • ྲྀಈੑ͕͘ͳΓՁ͕ͲΜͲΜԼ͕ͬͯ͠·͏ •
ෆͳஈͰऔҾ͕ߦΘΕΔϦεΫੜ͡Δ • ϘϥςΟϦςΟʔΛ૿Ճͤ͞Δ
$3:1 (&&, Solution εϚʔτίϯτϥΫτʹΑͬͯ ަ࣌ͷՁ֨Λࣗಈతʹࢉग़͠Ϛονϯάͳ͠ʹ औҾΛՄೳ͢Δɻ Bancor Protocol
$3:1 (&&, Solution(ങ͍͍ͨ߹) ങ͍͍ͨਓͱചΓ͍ͨਓͷϚονϯά͕͍͠ɻ ४උۚΛ୲อʹ͍ͯͭ͠ͰεϚʔτίϯτϥΫτʹΑͬͯ τʔΫϯͷަɺൃߦ͢ΔͰ͖ΔΈΛఏڙ͢Δ /FX ४උۚ #BODPS
$3:1 (&&, Solution(ചΓ͍ͨ߹) ४උۚ #BODPS ങ͍͍ͨਓͱചΓ͍ͨਓͷϚονϯά͕͍͠ɻ ४උۚΛ୲อʹ͍ͯͭ͠ͰεϚʔτίϯτϥΫτʹΑͬͯ τʔΫϯͷަɺൃߦ͢ΔͰ͖ΔΈΛఏڙ͢Δ
$3:1 (&&, Solution #VSO ४උۚ #BODPS ങ͍͍ͨਓͱചΓ͍ͨਓͷϚονϯά͕͍͠ɻ ४උۚΛ୲อʹ͍ͯͭ͠ͰεϚʔτίϯτϥΫτʹΑͬͯ τʔΫϯͷަɺൃߦ͢ΔͰ͖ΔΈΛఏڙ͢Δ ചങ͢ΔຖʹτʔΫϯͷ૯ൃߦྔ૿
$3:1 (&&, Solution /FX #VSO ४උۚ #BODPS ചങ͢ΔຖʹτʔΫϯͷ૯ൃߦྔ૿
$3:1 (&&, Solution ചങ͢ΔຖʹτʔΫϯͷ૯ൃߦྔ૿ Bancor্Ͱൃߦ͞ΕͨToken ചങຖʹ૯ൃߦྔ͕ ૿ݮ (Issue/Burn) ͯ͠ചΓ͍ͨͱ͖ʹചΕΔ ങ͍͍ͨͱ͖ʹങ͑ΔϓϥοτϗʔϜΛఏڙͯ͘͠ΕΔ
$3:1 (&&, ͔͠͠ɺͨ͘͞Μͷਓ͕Ҿ͖ग़͢ͱ ४උ͕ۚރׇͯ͠͠·͏Մೳੑ͕͋Δͷ Ձ֨ΛՁܾ֨ఆํఔࣜʹैͬͯಈతʹܾఆ͢Δ Solution ४උۚ #BODPS
$3:1 (&&, ͲͷΑ͏ʹՁ֨Λܾఆ͍ͯ͠Δ͔? Ձܾ֨ఆํఔࣜ
$3:1 (&&, Ձܾ֨ఆํఔࣜ Bancor্Ͱൃߦ͞ΕΔτʔΫϯͷ࣌Ձ૯ֹʹରͯ͠ɺ ४උ͕ۚৗʹҰఆͷׂ߹͑ΒΕ͍ͯΔΑ͏ʹՁ֨Λܾఆ͢Δɻ τʔΫϯͷ࣌Ձ૯ֹ = τʔΫϯͷՁ֨ × τʔΫϯͷ૯ൃߦྔ
1 4 ४උۚ 3FTFSWF = ݻఆ४උ × τʔΫϯͷ࣌Ձ૯ֹ 14 ' 3
$3:1 (&&, Ձܾ֨ఆํఔࣜ ४උۚ 3FTFSWF = ݻఆ४උ × τʔΫϯͷ࣌Ձ૯ֹ 14
' 3 R = FPS
$3:1 (&&, Ձܾ֨ఆํఔࣜ R = FPS P = R FS
$3:1 (&&, ४උ͕ۚগͳ͘ͳͬͨΒτʔΫϯΛ ҆͘ൃߦ͠४උۚΛ૿ͯ͠Β͏ɻ Ձܾ֨ఆํఔࣜ ͍҆ ४උۚ #BODPS R =
FPS P = R FS
$3:1 (&&, Ձܾ֨ఆํఔࣜ R = FPS P = R FS
࣮ࡍʹPΛٻΊͯΈΑ͏ɻ ReserveɺτʔΫϯͷՁ֨P͕ܾ·Βͳ͍ͱ ͱ·Βͳ͍ɻղ͚ͳ͍ɺɺ ͳͷͰɺՁ֨P͕มԽ͠ͳ͍ఔͪΐͼͬͱ͚ͩτʔΫϯΛ ൃߦͨ͠ͱ͖ͷ४උۚͷมԽʹ͍ͭͯߟ͑Δɻ dR = PdS
$3:1 (&&, Ձܾ֨ఆํఔࣜ R = FPS P = R FS
࣮ࡍʹPΛٻΊͯΈΑ͏ɻ ReserveɺτʔΫϯͷՁ֨P͕ܾ·Βͳ͍ͱ ͱ·Βͳ͍ɻղ͚ͳ͍ɺɺ ͳͷͰɺՁ֨P͕มԽ͠ͳ͍ఔͪΐͼͬͱ͚ͩτʔΫϯΛ ൃߦͨ͠ͱ͖ͷ४උۚͷมԽʹ͍ͭͯߟ͑Δɻ dR = PdS dR = Fd(PS) = F(dP)S + FP(dS)
$3:1 (&&, Ձܾ֨ఆํఔࣜ dR = PdS dR = Fd(PS) =
F(dP)S + FP(dS) 2͔ࣜΒɺ͋ΔτʔΫϯͷ૯ൃߦྔSͷͱ͖ͷ ͦͷτʔΫϯͷՁ֨P͕ٻ·Δ
$3:1 (&&, Ձܾ֨ఆํఔࣜ 2͔ࣜΒɺ͋ΔτʔΫϯͷ૯ൃߦྔSͷͱ͖ͷ ͦͷτʔΫϯͷՁ֨P͕ٻ·Δ P = ( S S0
)1 − F F
$3:1 (&&, ͜ΕҎ্Δͱ͘ͳΔͷͰɺଓ͖ɺwebͰ IUUQTRJJUBDPNUSJOHJUFNTGFFBBBEC
$3:1 (&&, ·ͱΊ • Bancor্Ͱൃߦ͞ΕͨToken ͷՁ֨εϚʔτίϯτϥΫτ ʹΑͬͯಈతʹมಈ͢Δ • Bancor্Ͱൃߦ͞ΕͨToken ചങຖʹ૯ൃߦྔ͕૿ݮ
(Issue/Burn) ͢Δ • Bancor্Ͱൃߦ͞Ε͍ͯͳ͍TokenͰಉ͡Έ͕͑Δ • औҾ૬ख͕͍ͳ͍ͷͰɺεϓϨοτ͕ͳ͍ɻ • ϦεΫ͕গͳ͍ɻ(εϚʔττʔΫϯؒͷมʹɺσϙ δοτͷೖ͕ۚෆཁ)
$3:1 (&&, Bancor & Kenya έχΞ
$3:1 (&&, Bancor & Kenya έχΞͰɺBancorΛ༻͍ͯҬ௨՟͕ൃߦ͞Ε͍ͯ ͯɺೋͭͷҬͰϓϩδΣΫτ͕ߦΘΕ͍ͯΔɻ ྲྀಈੑͷߴ͍Ծ௨՟Λར༻͢Δ͜ͱͰɺҬͰͷ ফඅ͕૿͑Ҭ׆ੑʹͭͳ͕Δ
$3:1 (&&, @r_etx Taiki Kawa ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ ࣭ɺtwitterͰड͚͚ͭͯ·͢!
$3:1 (&&, Reference • https://qiita.com/tring/items/7f0586ee90a2a806ad6b • https://www.bancor.network/ • https://storage.googleapis.com/website-bancor/2018/04/ 01ba8253-bancor_protocol_whitepaper_en.pdf
• Bancor ϓϩτίϧ:Smart Tokenͷֵ৽ੑͱɻʮCoincidence of WantsͷղܾʯͱͦΕ͕ͨΒ͢ʮऔҾͷ࠶ൃ໌ʯ • Bancor Protocol τʔΫϯΤίϊϛʔΛࢧ͑Δେൃ໌ͱͳΔ ͔ʁʢલޙฤ)_