Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
スマートコントラクト / Smart Contracts
Search
Kenji Saito
PRO
September 16, 2020
Technology
0
100
スマートコントラクト / Smart Contracts
2020年9月16日(水)、ブロックチェーンハブ主催のブロックチェーンアカデミー「スマートコントラクト」にて使用したスライドです。
Kenji Saito
PRO
September 16, 2020
Tweet
Share
More Decks by Kenji Saito
See All by Kenji Saito
We Never Took the Kobayashi Maru Test Until Now. What Do You Think of Our Solutions? — Journeys of the Mind Through a No-Win Game
ks91
PRO
0
4
思いつきが武器になる:研究というゲームを始めよう / Ideas Are Your Equipments : Let the Game of Research Begin!
ks91
PRO
0
59
ロボットを雰囲気(ヴァイブ)でプログラミングするこどもたち / Children Vibe-Programming Robots
ks91
PRO
0
21
アカデミーキャンプ 2025 SuuuuuuMMeR「燃えろ!!ロボコン」 / Academy Camp 2025 SuuuuuuMMeR "Burn the Spirit, Robocon!!" DAY 3
ks91
PRO
0
29
アカデミーキャンプ 2025 SuuuuuuMMeR「燃えろ!!ロボコン」 / Academy Camp 2025 SuuuuuuMMeR "Burn the Spirit, Robocon!!" DAY 2
ks91
PRO
0
31
アカデミーキャンプ 2025 SuuuuuuMMeR「燃えろ!!ロボコン」 / Academy Camp 2025 SuuuuuuMMeR "Burn the Spirit, Robocon!!" DAY 1
ks91
PRO
0
150
未来へのフォワードキャスト / Forward Cast to the Future
ks91
PRO
0
82
発表と総括 / Presentations and Summary
ks91
PRO
0
59
サイバーフィジカル社会、金融の未来とアイデアソン / Cyber Physical Society, Future of Finance, and Ideathon
ks91
PRO
0
76
Other Decks in Technology
See All in Technology
LLM時代の検索とコンテキストエンジニアリング
shibuiwilliam
2
1.1k
AIドリブンのソフトウェア開発 - うまいやり方とまずいやり方
okdt
PRO
9
630
認知戦の理解と、市民としての対抗策
hogehuga
0
370
実践アプリケーション設計 ①データモデルとドメインモデル
recruitengineers
PRO
3
260
我々は雰囲気で仕事をしている / How can we do vibe coding as well
naospon
2
220
攻撃と防御で実践するプロダクトセキュリティ演習~導入パート~
recruitengineers
PRO
2
200
Evolution on AI Agent and Beyond - AGI への道のりと、シンギュラリティの3つのシナリオ
masayamoriofficial
0
180
どこで動かすか、誰が動かすか 〜 kintoneのインフラ基盤刷新と運用体制のシフト 〜
ueokande
0
190
実践アプリケーション設計 ③ドメイン駆動設計
recruitengineers
PRO
3
210
AIエージェント就活入門 - MCPが履歴書になる未来
eltociear
0
520
OpenAPIから画面生成に挑戦した話
koinunopochi
0
160
JuniorからSeniorまで: DevOpsエンジニアの成長ロードマップ
yuriemori
0
210
Featured
See All Featured
The Language of Interfaces
destraynor
160
25k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4k
Build your cross-platform service in a week with App Engine
jlugia
231
18k
What’s in a name? Adding method to the madness
productmarketing
PRO
23
3.6k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
22k
The Straight Up "How To Draw Better" Workshop
denniskardys
236
140k
Being A Developer After 40
akosma
90
590k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
248
1.3M
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
44
2.5k
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.4k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
10
1k
Transcript
Chief Science Officer /
[email protected]
— — 2020-09-16 – p.1/39
https://speakerdeck.com/ks91 — — 2020-09-16 – p.2/39
( ) SFC ( ) CSO (Chief Science Officer) 1993
( ) 2006 ( ) SFC 20 P2P (Peer-to-Peer) ( 9 ) 2011 2018 2019 2019 2020 2020 → ( ) — — 2020-09-16 – p.3/39
— — 2020-09-16 – p.4/39
— — 2020-09-16 – p.5/39
— — 2020-09-16 – p.6/39
↑ . . . — — 2020-09-16 – p.7/39
vs. — — 2020-09-16 – p.8/39
(by ) 1. 2. ( ) ( ) . .
. cf. by McLuhan cf. by McLuhan → — — 2020-09-16 – p.9/39
Ethereum ( ) EVM (Ethereum Virtual Machine) — — 2020-09-16
– p.10/39
Vitalik Buterin, “Ethereum White Paper: A NEXT GENERATION SMART CONTRACT
& DECENTRALIZED APPLICATION PLATFORM” 15 = ( ) DApps ( ) — — 2020-09-16 – p.11/39
EVM : Ethereum Virtual Machine Gas ( EVM = )
→ — — 2020-09-16 – p.12/39
— — 2020-09-16 – p.13/39
EVM : . . . : Solidity — JavaScript Vyper
— Python LLL — Lisp — — 2020-09-16 – p.14/39
Solidity ( ) pragma solidityˆ0.5.0; contract IndivisibleAsset { /* */
string public _name; string public _symbol; uint256 public _quantity; address public _owner; constructor(string memory name, string memory symbol, uint256 quantity) public { _name = name; _symbol = symbol; _quantity = quantity; _owner = msg.sender; } function transfer(address to) public returns (bool) { require (_owner == msg.sender); _owner = to; return true; } } — — 2020-09-16 – p.15/39
( , ) (constructor) (deploy) = ( ) ( )
ETH Trusted Actor Model — — 2020-09-16 – p.16/39
(ex. ) (ex. ) — — 2020-09-16 – p.17/39
ADEPT The DAO — — 2020-09-16 – p.18/39
ADEPT ADEPT : IBM IoT → ⇒ — — 2020-09-16
– p.19/39
— — 2020-09-16 – p.20/39
⇒ — — 2020-09-16 – p.21/39
The DAO ( ) The DAO Split ( ) 360
ETH (50∼60 ) (2016/6/17) ( ) ( ; ) (2016/7/20 ) — — 2020-09-16 – p.22/39
— — 2020-09-16 – p.23/39
ERC20 ERC (Ethereum Request for Comments) 20 https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md (EIP: Ethereum
Improvement Proposal) contract ERC20 { function totalSupply() constant returns (uint totalSupply); function balanceOf(address _owner) constant returns (uint balance); function transfer(address _to, uint _value) returns (bool success); function transferFrom(address _from, address _to, uint _value) returns (bool success); function approve(address _spender, uint _value) returns (bool success); function allowance(address _owner, address _spender) constant returns (uint remaining); event Transfer(address indexed _from, address indexed _to, uint _value); event Approval(address indexed _owner, address indexed _spender, uint _value); } name/ , symbol/ , decimals/ approve allowance ERC223 ( ), ERC721 (Non-Fungible) — — 2020-09-16 – p.24/39
ERC20 ERC20 ← ( ) ( ) ⇒ ERC20 (
ERC20 ) ERC20 ⇒ — — 2020-09-16 – p.25/39
(fungible) ERC20 → ERC223 (draft) or ERC777 (non-fungible) ERC721 (
) (partially fungible) ERC1410 (draft) (ERC1400 ) (redeemable) — — 2020-09-16 – p.26/39
ERC ERC1400 (draft) : Security Token Standard ERC20 ERC777 ERC1594
(draft) : Core Security Token Standard ( ) (KYC ) ERC1643 (draft) : Documnet Management Standard ERC1644 (draft) : Controller Token Standard ( ) ( ) ERC2258 (draft) : Custodial Ownership Standard ( ) ( ) — — 2020-09-16 – p.27/39
OS — — 2020-09-16 – p.28/39
OS (2007) — — 2020-09-16 – p.29/39
OS ↑ cf. NPO/NGO — — 2020-09-16 – p.30/39
OS . . . — — 2020-09-16 – p.31/39
Uber — — 2020-09-16 – p.32/39
Uber Uber P2P + Uber — — 2020-09-16 – p.33/39
/ . . . — — 2020-09-16 – p.34/39
( ) / / — — 2020-09-16 – p.35/39
— 1. ( ) 2. ( ) 3. ( )
— — 2020-09-16 – p.36/39
10 12 → 120 120 12 12 120 — —
2020-09-16 – p.37/39
— — 2020-09-16 – p.38/39
— — 2020-09-16 – p.39/39