Blockchain Intro

Blockchain Intro

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Sota Watanabe

January 20, 2019
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    Quick Introduction ౉ล૑ଠ / Sota Watanabe Twitter: @WatanabeSota ৬ྺ •

    Chronicled • CryptoAge • Staked ࠷ۙ ERC20ͷDEXΛͭ͘Γ·ͨ͠ɻ ৭ʑͳDAppsΛ࡞ͬͯ·͢ɻDeFiΛݟͯ·͢ɻ
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    ʮDecentralizationʯͬͯͳΜͩΖ͏ʁ ੈͷதΛDecentralize͢Δʂ Centralized ʮதԝूݖʯ ͜ͷ༁ʹ͋·Γٞ࿦͸ͳ͍͸ͣɻ De-Centralized Decentralization = ඇதԝूݖԽ ??

    Distributed de͸઀಄ޠͰʮ཭ΕΔʯ ʮඇʯͱ͍͏ͷ͸൱ఆܗͰ͋ΓdeͰ͸ͳ͍ɻ ࣙॻͰʮDecentralizationʯΛҾ͘ͱ
 ʮ஍ํ෼ݖԽʯ͕ग़ͯ͘Δɻ Decentralization͸ඇதԝूݖԽͰ͸ͳ͍ɻ ͲͪΒ͔ͱ͍͏ͱʮ෼ݖԽʯͱ༁ͨ͠΄͏͕͍͍ɻ Decentralization = Distributed ? Distributed͸ࠨͷ2ͭͱҧͬͯ ݖྗΛද͢୯ޠͰ͸ͳ͍ɻ ͳͷͰʮ෼ࢄԽʯͱߟ͑ΒΕΔɻ ͳͷͰʮ෼ݖԽʯͱʮ෼ࢄԽʯ Ͱ͸ҙຯ߹͍͕ҟͳΔɻ
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    τϥετϨεͱ͸ͳʹ͔ʁ “Blockchain is slow. It’s really complex. It’s lacking a

    lot of features. But, it has one feature that is never existed before and that’s trust.” Ben Horowitz
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    τϥετϨεͱ͸ͳʹ͔ʁ "Kyber protocol does not hold the users' funds. There

    is no need for the user to trust us. Users are able to freely verify and audit our smart contracts." Just an example of trust less.
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    ϒϩοΫνΣʔϯͷࠜຊࢥ૝ Decentralizationͱݴ͏΋ͷͷɺατγɾφΧϞτ͸໌จԽ͍ͯ͠ΔΘ͚Ͱ͸ͳ͍͕ɺ https://www.blockchain.com/explorer Genesis blockʹ͸THE TIMESͷ 04ffff001d0104455468652054696d65732030332f4a616e2f323 030392043 68616e63656c6c6f72206f6e206272696e6b206f66207365636f 6e6420626

    1696c6f757420666f722062616e6b73 (σίʔυࡁΈ) EThe Times 03/Jan/2009 Chancellor on brink of second bailout for banks “Chancellor on brink of second bailout for banks” ࡒ຿େਉ2౓໨ͷۜߦٹࡁ͔? ͱ͍͏จࣈ͕ຒΊࠐ·Ε͍ͯΔɻ
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    جຊతͳ࢓૊Έ ϒϩοΫνΣʔϯͷಛ௃ ᶃ վ͟Μ͕ۃΊͯࠔ೉Ͱ͋Δɻ ᶄ ࣮࣭0μ΢ϯλΠϜɻ ᶅ 2ॏࢧ෷͍ͷ๷ࢭɻ ͳͥվ͟Μ͕ࠔ೉͔ͱ͍͏ͱ2ͭͷಛ௃͕͋Δɻ 1ͭ໨͸ʮ෼ࢄతʯͳ؅ཧγεςϜ͔ͩΒɻ

    ͜ͷΑ͏ͳγεςϜΛҰൠతʹP2Pͱ͍͏ɻ(Peer to Peer) ैདྷɺ͓ۚͷऔҾ͸ۜߦͳͲͷୈ3ऀػ͕ؔ஥հ͢Δ͜ͱʹ Αͬͯ৴པੑΛ୲อ͖͕ͯͨ͠ɺ ϒϩοΫνΣʔϯͰ͸શͯͷ ཤྺΛօͰڞ༗͢Δ͜ͱʹΑͬͯ৴པੑΛ୲อ͍ͯ͠Δɻ ͜ΕʹΑͬͯୈ3ऀػ͕ؔඞཁͳ͘ͳΔͱҰൠతʹݴΘΕ͍ͯΔɻ 2ͭ໨͸ʮ֤औҾཤྺ͸ॱ൪ʹϒϩοΫʹऩೲ͞Ε͍֤ͯͯϒϩο Ϋ͕௚લͷϒϩοΫͱͭͳ͕͍ͬͯΔͨΊʹվ͟Μ͕ࠔ೉ʯ ྫ͑͹ɺσʔλ͕อ؅͞Ε͍ͯΔ1ͭͷϒϩοΫͷσʔλΛվ͟Μ ͢ΔͱɺνΣʔϯͰܨ͕͍ͬͯΔલɺޙΖͷσʔλͱͷ੔߹ੑ͕ औΕͳ͘ͳΔͷͰվ͟ΜΛͨ͠Βॠ࣌ʹݟ͔ͭΔɻ ࢀߟɿܦࡁ࢈ۀলࢿྉ
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    جຊతͳ࢓૊Έ ύϒϦοΫ ίϯιʔγΞϜ ϓϥΠϕʔτ ϚΠχϯάϊʔυ ੍ݶͳ͠ ੍ݶՄೳ ੍ݶՄೳ Ӿཡ Φʔϓϯ

    ੍ݶՄೳ ੍ݶՄೳ ϒϩοΫੜ੒ PoW΍PoSͳͲ೉қ౓ͷ
 ߴ͍࢓૊Έ͕ඞཁɻ ϒϩοΫੜ੒ओମΛݶఆͤ͞Δ ৔߹͕ଟ͍ɻ ೚ҙ ϚΠχϯάใु ඞਢ ೚ҙ ೚ҙ Ϣʔεέʔε Bitcoin, Ethereaum HyperLedger اۀ಺σʔλϕʔε
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    ςΫϊϩδʔαΠυ͔ΒΈΔϒϩοΫνΣʔϯۀքͷະདྷʢϛΫϩʣ Time 2018 2017 2019 2020 2021 ICO STO ICO͔ΒSTO΁

    ICO CEX DEX CEX͔ΒDEX΁ DeFi Stablecoin Stablecoinͷ୆಄ Interoperability PolkadotɼSubstrate ۚ༥DAppsͷຊ֨Խ