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
March 24, 2021
Technology
1
150
スマートコントラクト / Smart Contracts
2021年3月24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
March 24, 2021
Tweet
Share
More Decks by Kenji Saito
See All by Kenji Saito
続・インクルーシブな社会へ / Continuing Towards an Inclusive Society
ks91
PRO
0
20
AGI (人工一般知能) と創る新しく奇妙な社会 / New and Stranger Society built with AGI
ks91
PRO
0
67
回帰分析/大規模言語モデルと統計 / Regression Analysis, Large Language Models and Statistics
ks91
PRO
0
72
多重比較/相関分析 / Multiple Comparison and Correlation Analysis
ks91
PRO
0
67
アカデミーキャンプ 2025冬「考えるのは奴らだ」 / Academy Camp 2025 Winter - Live and Let Think DAY 3
ks91
PRO
0
63
アカデミーキャンプ 2025冬「考えるのは奴らだ」 / Academy Camp 2025 Winter - Live and Let Think DAY 2
ks91
PRO
0
50
アカデミーキャンプ 2025冬「考えるのは奴らだ」 / Academy Camp 2025 Winter - Live and Let Think DAY 1
ks91
PRO
1
75
インクルーシブな社会へ / Toward an Inclusive Society
ks91
PRO
0
23
P 値と有意差/分散分析 / P-value, Significant Difference and Analysis of Variance
ks91
PRO
0
73
Other Decks in Technology
See All in Technology
Snowflakeの開発・運用コストをApache Icebergで効率化しよう!~機能と活用例のご紹介~
sagara
1
540
【内製開発Summit 2025】イオンスマートテクノロジーの内製化組織の作り方/In-house-development-summit-AST
aeonpeople
2
1.1k
AI自体のOps 〜LLMアプリの運用、AWSサービスとOSSの使い分け〜
minorun365
PRO
9
1.1k
開発者体験を定量的に把握する手法と活用事例
ham0215
0
140
2/18 Making Security Scale: メルカリが考えるセキュリティ戦略 - Coincheck x LayerX x Mercari
jsonf
0
260
サイト信頼性エンジニアリングとAmazon Web Services / SRE and AWS
ymotongpoo
7
1.8k
Log Analytics を使った実際の運用 - Sansan Data Hub での取り組み
sansantech
PRO
0
120
AWSアカウントのセキュリティ自動化、どこまで進める? 最適な設計と実践ポイント
yuobayashi
7
1.8k
LayerXにおけるAI活用事例とその裏側(2025年2月) バクラクの目指す “業務の自動運転” の例 / layerx-ai-deim2025
yuya4
3
650
JAWS FESTA 2024「バスロケ」GPS×サーバーレスの開発と運用の舞台裏/jawsfesta2024-bus-gps-serverless
ma2shita
3
350
2025/3/1 公共交通オープンデータデイ2025
morohoshi
0
110
プルリクエストレビューを終わらせるためのチーム体制 / The Team for Completing Pull Request Reviews
nekonenene
3
1.4k
Featured
See All Featured
What's in a price? How to price your products and services
michaelherold
244
12k
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
40
2k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
29
1.1k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
27
1.9k
Making Projects Easy
brettharned
116
6k
Principles of Awesome APIs and How to Build Them.
keavy
126
17k
RailsConf 2023
tenderlove
29
1k
GraphQLとの向き合い方2022年版
quramy
44
14k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
49
2.3k
Bash Introduction
62gerente
611
210k
The World Runs on Bad Software
bkeepers
PRO
67
11k
Building Flexible Design Systems
yeseniaperezcruz
328
38k
Transcript
Chief Science Officer / ks91@blockchainhub.co.jp — — 2021-03-24 – p.1/39
https://speakerdeck.com/ks91 — — 2021-03-24 – p.2/39
( ) SFC ( ) CSO (Chief Science Officer) 1993
( ) 2006 ( ) SFC 20 P2P (Peer-to-Peer) ( 2019 9 ) 2011 2018 2019 2019 2020 2020 → ( ) — — 2021-03-24 – p.3/39
— — 2021-03-24 – p.4/39
— — 2021-03-24 – p.5/39
— — 2021-03-24 – p.6/39
↑ . . . — — 2021-03-24 – p.7/39
vs. — — 2021-03-24 – p.8/39
(by ) 1. 2. ( ) ( ) . .
. cf. by McLuhan cf. by McLuhan → — — 2021-03-24 – p.9/39
Ethereum ( ) EVM (Ethereum Virtual Machine) — — 2021-03-24
– p.10/39
Vitalik Buterin, “Ethereum White Paper: A NEXT GENERATION SMART CONTRACT
& DECENTRALIZED APPLICATION PLATFORM” 15 = ( ) DApps ( ) — — 2021-03-24 – p.11/39
EVM : Ethereum Virtual Machine Gas ( EVM = )
→ — — 2021-03-24 – p.12/39
— — 2021-03-24 – p.13/39
EVM : . . . : Solidity — JavaScript Vyper
— Python Fe — Vyper Rust ← NEW! — — 2021-03-24 – p.14/39
Solidity ( ) pragma solidityˆ0.7.0; 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; } } — — 2021-03-24 – p.15/39
( , ) (constructor) (deploy) = ( ) ( )
ETH Trusted Actor Model — — 2021-03-24 – p.16/39
(ex. ) (ex. ) — — 2021-03-24 – p.17/39
ADEPT The DAO — — 2021-03-24 – p.18/39
ADEPT ADEPT : IBM IoT → ⇒ — — 2021-03-24
– p.19/39
— — 2021-03-24 – p.20/39
⇒ — — 2021-03-24 – p.21/39
The DAO ( ) The DAO Split ( ) 360
ETH (50∼60 ) (2016/6/17) ( ) ( ; ) (2016/7/20 ) — — 2021-03-24 – p.22/39
— — 2021-03-24 – 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) — — 2021-03-24 – p.24/39
ERC20 ERC20 ← ( ) ( ) ⇒ ERC20 (
ERC20 ) ERC20 ⇒ — — 2021-03-24 – p.25/39
(fungible) ERC20 → ERC223 (draft) or ERC777 (non-fungible) ERC721 (
) (partially fungible) ERC1410 (draft) (ERC1400 ) (redeemable) — — 2021-03-24 – 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 ( ) ( ) — — 2021-03-24 – p.27/39
OS — — 2021-03-24 – p.28/39
OS (2007) — — 2021-03-24 – p.29/39
OS ↑ cf. NPO/NGO — — 2021-03-24 – p.30/39
OS . . . — — 2021-03-24 – p.31/39
Uber — — 2021-03-24 – p.32/39
Uber Uber P2P + Uber — — 2021-03-24 – p.33/39
/ . . . — — 2021-03-24 – p.34/39
( ) / / — — 2021-03-24 – p.35/39
— 1. ( ) 2. ( ) 3. ( )
— — 2021-03-24 – p.36/39
10 12 → 120 120 12 12 120 — —
2021-03-24 – p.37/39
— — 2021-03-24 – p.38/39
— — 2021-03-24 – p.39/39