$30 off During Our Annual Pro Sale. View Details »
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
BancorProtocol
Search
Taiki
July 10, 2018
4
760
BancorProtocol
Taiki
July 10, 2018
Tweet
Share
More Decks by Taiki
See All by Taiki
Blenderで作るCG VR
r_etx
1
81
Slush✖️Privacy
r_etx
0
110
WeArelookingForYou.pdf
r_etx
1
710
Zk-SNRAKS1~4
r_etx
0
44
hakone_hackthon
r_etx
0
88
Dynamics of Blockchain
r_etx
1
63
Lightning network
r_etx
0
100
TPS&51%Attack
r_etx
0
310
GHZstate
r_etx
0
51
Featured
See All Featured
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
162
16k
Making Projects Easy
brettharned
120
6.5k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
21
1.3k
Why You Should Never Use an ORM
jnunemaker
PRO
61
9.6k
Six Lessons from altMBA
skipperchong
29
4.1k
Bootstrapping a Software Product
garrettdimon
PRO
307
120k
Scaling GitHub
holman
464
140k
Git: the NoSQL Database
bkeepers
PRO
432
66k
Making the Leap to Tech Lead
cromwellryan
135
9.7k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
132
19k
KATA
mclloyd
PRO
32
15k
Building an army of robots
kneath
306
46k
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)_