$3:1(&&,τʔΫϯͷྲྀಈੑͱBancor
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$3:1(&&,@r_etx-*/&$MPWBTaiki Kawa౦ژۀେֶཧֶՊଔۀɾम࢜2LINE ClovaͰ6ϲ݄ؒPMݱࡏෳͷBlock Chain ελʔτΞοϓͰBlockchainͷ։ൃϝσΟΞࣄۀͰ׆ಈ࠷ۙɺPlasmͱCosmosͱlocalܦࡁʹڵຯ͕ΔɻCONSENSYS MEDIACryptoAGE
$3:1(&&,౦େͰɺ
$3:1(&&,िʹҰɺ༵ޕલ10࣌ʙɺॴौ୩ͳͲEthereumؔ࿈ٕज़ɺ҉߸ֶͳͲΛओʹͬͯ·ͨ͠ɹwallet։ൃ(iOS,Android)ɺࢄγεςϜ + LTษڧձ
$3:1(&&,ͳʹΛษڧ͍ͯ͠Δ͔ৄ͘͠Γ͍ͨਓɼMediumΛɻ·ͨɺFacebookάϧʔϓ“౦େϒϩοΫνΣʔϯݚڀձ” ʹͯৄࡉΛ࿈བྷͯ͠·͢
$3:1(&&,@CrypGeek
$3:1(&&,@CrypGeekڵຯ͋Δํ୭ͰwelcomeͳͷͰΛ͔͚͍ͯͩ͘͞!
$3:1(&&,ContentsೋॏͷཉٻͷҰகͱ՟ฎτʔΫϯΤίϊϛʔBancorʹ͍ͭͯՁܾ֨ఆํఔࣜҬ௨՟(kenya)
$3:1(&&,ProblemτʔΫϯΤίϊϛʔɺDapps͕࣮༻్Ͱ׆༻͞ΕΔΑ͏ʹͳΔʹ͍͔ͭ͘ͷ՝͕͋Δɻ
$3:1(&&,ProblemScalability Interoperability Liquidity
$3:1(&&,Scalability(εέʔϥϏϦςΟ)τϥϯβΫγϣϯ͕ͯ͘ίετ͕ߴ͍Problem
$3:1(&&,Plasma, Lightningnetwork, Sharding, CasperProblemScalability(εέʔϥϏϦςΟ)τϥϯβΫγϣϯ͕ͯ͘ίετ͕ߴ͍
$3:1(&&,ProblemInteroperability(ΠϯλʔΦϖϥϏϦςΟ)ҟͳΔνΣʔϯʹ͓͚Δ૬ޓӡ༻ੑ͕ͳ͍
$3:1(&&,ProblemCosmos, PolkadotInteroperability(ΠϯλʔΦϖϥϏϦςΟ)ҟͳΔνΣʔϯʹ͓͚Δ૬ޓӡ༻ੑ͕ͳ͍
$3:1(&&,Liquidity(ϦΫΠσΟςΟ)ྲྀಈੑProblem
$3:1(&&,BancorLiquidity(ϦΫΠσΟςΟ)ྲྀಈੑProblem
$3:1(&&,ྲྀಈੑͱͷΞηοτͷऔҾͷ͢͠͞ɺΒ͔͞ɻྲྀಈੑ͕ߴ͍ͱങ͍͍ͨͱ͖ʹɺ͙͢ʹങ͑ΔɻചΓ͍ͨͱ͖ʹɺ͙͢ʹചΕΔɻProblem
$3:1(&&,Double co-incidence of wantsBob͕މຑ౾Λ͍࣋ͬͯͯɺ͜ΕΛཛͱަ͍ͨ͠ɺཛΛ͍࣋ͬͯͯމຑ౾͕ཉ͍͠ਓΛݟ͚͍ͭͨɻަ͍ͨ͠
$3:1(&&,Double co-incidence of wantsఏҊBob͕މຑ౾Λ͍࣋ͬͯͯɺ͜ΕΛཛͱަ͍ͨ͠ɺཛΛ͍࣋ͬͯͯމຑ౾͕ཉ͍͠ਓΛݟ͚͍ͭͨɻೋॏͷཉٻͷҰக(Double co-incidence of wants)͕ඞཁɻަ͍ͨ͠ަ͍ͨ͠ Ϛονϯά
$3:1(&&,Double co-incidence of wantsఏҊཉ͍͠ͷͰͳ͔ͬͨΒஅΔBob͕މຑ౾Λ͍࣋ͬͯͯɺ͜ΕΛཛͱަ͍ͨ͠ɺཛΛ͍࣋ͬͯͯމຑ౾͕ཉ͍͠ਓΛݟ͚͍ͭͨɻೋॏͷཉٻͷҰக(Double co-incidence of wants)͕ඞཁɻަ͍ͨ͠
$3:1(&&,Double co-incidence of wants՟ฎɺΈͳڞ௨ʹͲͷ࣌ͰՁΛײ͡Δͷɻ୯Ұ՟ฎΛ༻͍Δ͜ͱʹΑͬͯ͜ͷΛղܾͰ͖ͨɻఏҊঝ͢Δަ͍ͨ͠ަ͍ͨ͠
$3:1(&&,Double co-incidence of wantsτʔΫϯΤίϊϛʔͰ༷ʑͳਓ͕༷ʑτʔΫϯΛ͍࣋ͬͯΔɻॴ༗ऀ͕গͳ͍ϚΠφʔͳτʔΫϯͰɺೋॏͷཉٻͷҰக͕ى͜Γʹ͍͘ɻ
$3:1(&&,Problem• ചΓͨͯ͘ചΕͳ͍• ങ͍ͨͯ͘ങ͑ͳ͍• ྲྀಈੑ͕͘ͳΓՁ͕ͲΜͲΜԼ͕ͬͯ͠·͏• ෆͳஈͰऔҾ͕ߦΘΕΔϦεΫੜ͡Δ• ϘϥςΟϦςΟʔΛ૿Ճͤ͞Δ
$3:1(&&,SolutionεϚʔτίϯτϥΫτʹΑͬͯަ࣌ͷՁ֨Λࣗಈతʹࢉग़͠Ϛονϯάͳ͠ʹऔҾΛՄೳ͢ΔɻBancor Protocol
$3:1(&&,Solution(ങ͍͍ͨ߹)ങ͍͍ͨਓͱചΓ͍ͨਓͷϚονϯά͕͍͠ɻ४උۚΛ୲อʹ͍ͯͭ͠ͰεϚʔτίϯτϥΫτʹΑͬͯτʔΫϯͷަɺൃߦ͢ΔͰ͖ΔΈΛఏڙ͢Δ/FX४උۚ#BODPS
$3:1(&&,Solution(ചΓ͍ͨ߹)४උۚ#BODPSങ͍͍ͨਓͱചΓ͍ͨਓͷϚονϯά͕͍͠ɻ४උۚΛ୲อʹ͍ͯͭ͠ͰεϚʔτίϯτϥΫτʹΑͬͯτʔΫϯͷަɺൃߦ͢ΔͰ͖ΔΈΛఏڙ͢Δ
$3:1(&&,Solution#VSO४උۚ#BODPSങ͍͍ͨਓͱചΓ͍ͨਓͷϚονϯά͕͍͠ɻ४උۚΛ୲อʹ͍ͯͭ͠ͰεϚʔτίϯτϥΫτʹΑͬͯτʔΫϯͷަɺൃߦ͢ΔͰ͖ΔΈΛఏڙ͢Δചങ͢ΔຖʹτʔΫϯͷ૯ൃߦྔ૿
$3:1(&&,Solution/FX#VSO४උۚ#BODPSചങ͢ΔຖʹτʔΫϯͷ૯ൃߦྔ૿
$3:1(&&,Solutionചങ͢ΔຖʹτʔΫϯͷ૯ൃߦྔ૿Bancor্Ͱൃߦ͞ΕͨToken ചങຖʹ૯ൃߦྔ͕૿ݮ (Issue/Burn) ͯ͠ചΓ͍ͨͱ͖ʹചΕΔങ͍͍ͨͱ͖ʹങ͑ΔϓϥοτϗʔϜΛఏڙͯ͘͠ΕΔ
$3:1(&&,͔͠͠ɺͨ͘͞Μͷਓ͕Ҿ͖ग़͢ͱ४උ͕ۚރׇͯ͠͠·͏Մೳੑ͕͋ΔͷՁ֨ΛՁܾ֨ఆํఔࣜʹैͬͯಈతʹܾఆ͢ΔSolution४උۚ#BODPS
$3:1(&&,ͲͷΑ͏ʹՁ֨Λܾఆ͍ͯ͠Δ͔?Ձܾ֨ఆํఔࣜ
$3:1(&&,Ձܾ֨ఆํఔࣜBancor্Ͱൃߦ͞ΕΔτʔΫϯͷ࣌Ձ૯ֹʹରͯ͠ɺ४උ͕ۚৗʹҰఆͷׂ߹͑ΒΕ͍ͯΔΑ͏ʹՁ֨Λܾఆ͢ΔɻτʔΫϯͷ࣌Ձ૯ֹ = τʔΫϯͷՁ֨ × τʔΫϯͷ૯ൃߦྔ1 4४උۚ 3FTFSWF = ݻఆ४උ × τʔΫϯͷ࣌Ձ૯ֹ14'3
$3:1(&&,Ձܾ֨ఆํఔࣜ४උۚ 3FTFSWF = ݻఆ४උ × τʔΫϯͷ࣌Ձ૯ֹ14'3R = FPS
$3:1(&&,Ձܾ֨ఆํఔࣜR = FPS P =RFS
$3:1(&&,४උ͕ۚগͳ͘ͳͬͨΒτʔΫϯΛ҆͘ൃߦ͠४උۚΛ૿ͯ͠Β͏ɻՁܾ֨ఆํఔ͍ࣜ҆४උۚ#BODPSR = FPS P =RFS
$3:1(&&,Ձܾ֨ఆํఔࣜR = FPS P =RFS࣮ࡍʹPΛٻΊͯΈΑ͏ɻ ReserveɺτʔΫϯͷՁ֨P͕ܾ·Βͳ͍ͱͱ·Βͳ͍ɻղ͚ͳ͍ɺɺͳͷͰɺՁ֨P͕มԽ͠ͳ͍ఔͪΐͼͬͱ͚ͩτʔΫϯΛൃߦͨ͠ͱ͖ͷ४උۚͷมԽʹ͍ͭͯߟ͑ΔɻdR = PdS
$3:1(&&,Ձܾ֨ఆํఔࣜR = FPS P =RFS࣮ࡍʹPΛٻΊͯΈΑ͏ɻ ReserveɺτʔΫϯͷՁ֨P͕ܾ·Βͳ͍ͱͱ·Βͳ͍ɻղ͚ͳ͍ɺɺͳͷͰɺՁ֨P͕มԽ͠ͳ͍ఔͪΐͼͬͱ͚ͩτʔΫϯΛൃߦͨ͠ͱ͖ͷ४උۚͷมԽʹ͍ͭͯߟ͑ΔɻdR = PdSdR = Fd(PS) = F(dP)S + FP(dS)
$3:1(&&,Ձܾ֨ఆํఔࣜdR = PdSdR = Fd(PS) = F(dP)S + FP(dS)2͔ࣜΒɺ͋ΔτʔΫϯͷ૯ൃߦྔSͷͱ͖ͷͦͷτʔΫϯͷՁ֨P͕ٻ·Δ
$3:1(&&,Ձܾ֨ఆํఔࣜ2͔ࣜΒɺ͋ΔτʔΫϯͷ૯ൃߦྔSͷͱ͖ͷͦͷτʔΫϯͷՁ֨P͕ٻ·ΔP = (SS0)1 − FF
$3:1(&&,͜ΕҎ্Δͱ͘ͳΔͷͰɺଓ͖ɺwebͰIUUQTRJJUBDPNUSJOHJUFNTGFFBBBEC
$3:1(&&,·ͱΊ• Bancor্Ͱൃߦ͞ΕͨToken ͷՁ֨εϚʔτίϯτϥΫτʹΑͬͯಈతʹมಈ͢Δ• Bancor্Ͱൃߦ͞ΕͨToken ചങຖʹ૯ൃߦྔ͕૿ݮ(Issue/Burn) ͢Δ• Bancor্Ͱൃߦ͞Ε͍ͯͳ͍TokenͰಉ͡Έ͕͑Δ• औҾ૬ख͕͍ͳ͍ͷͰɺεϓϨοτ͕ͳ͍ɻ• ϦεΫ͕গͳ͍ɻ(εϚʔττʔΫϯؒͷมʹɺσϙδοτͷೖ͕ۚෆཁ)
$3:1(&&,Bancor & KenyaέχΞ
$3:1(&&,Bancor & KenyaέχΞͰɺBancorΛ༻͍ͯҬ௨՟͕ൃߦ͞Ε͍ͯͯɺೋͭͷҬͰϓϩδΣΫτ͕ߦΘΕ͍ͯΔɻྲྀಈੑͷߴ͍Ծ௨՟Λར༻͢Δ͜ͱͰɺҬͰͷফඅ͕૿͑Ҭ׆ੑʹͭͳ͕Δ
$3:1(&&,@r_etxTaiki Kawa͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ࣭ɺtwitterͰड͚͚ͭͯ·͢!
$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৽ੑͱɻʮCoincidenceof WantsͷղܾʯͱͦΕ͕ͨΒ͢ʮऔҾͷ࠶ൃ໌ʯ• Bancor Protocol τʔΫϯΤίϊϛʔΛࢧ͑Δେൃ໌ͱͳΔ͔ʁʢલޙฤ)_
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