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
ブロックチェーン概論とインストール大会 / Blockchain Overview and I...
Search
Kenji Saito
PRO
October 23, 2023
Technology
0
100
ブロックチェーン概論とインストール大会 / Blockchain Overview and Installation
2023年10月23日(月)、慶應義塾大学大学院メディアデザイン研究科「サービスデザインプロジェクト B」2023秋で使用したスライドです。
Kenji Saito
PRO
October 23, 2023
Tweet
Share
More Decks by Kenji Saito
See All by Kenji Saito
FinTech 3-4 : Internet Technology and Governance
ks91
PRO
0
19
民主主義と博愛(Humanitarianism) / Democracy and Humanitarianism
ks91
PRO
0
1
ブロックチェーン概論 / Introduction to Blockchain
ks91
PRO
0
6
ブロックチェーンと分散ファイナンス概論 / Introduction to Blockchain and Decentralized Finance
ks91
PRO
0
47
Proof of Authenticity of General IoT Information with Tamper-Evident Sensors and Blockchain
ks91
PRO
0
5
FinTech 1-2 : Overview of FinTech
ks91
PRO
0
14
デジタルトランスフォーメーションと民主主義 / Digital Transformation and Democracy
ks91
PRO
0
19
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
24
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
79
Other Decks in Technology
See All in Technology
Function calling機能をPLaMo2に実装するには / PFN LLMセミナー
pfn
PRO
0
940
Goに育てられ開発者向けセキュリティ事業を立ち上げた僕が今向き合う、AI × セキュリティの最前線 / Go Conference 2025
flatt_security
0
350
From Prompt to Product @ How to Web 2025, Bucharest, Romania
janwerner
0
120
バイブコーディングと継続的デプロイメント
nwiizo
2
430
空間を設計する力を考える / 20251004 Naoki Takahashi
shift_evolve
PRO
3
360
Goにおける 生成AIによるコード生成の ベンチマーク評価入門
daisuketakeda
2
110
関係性が駆動するアジャイル──GPTに人格を与えたら、対話を通してふりかえりを習慣化できた話
mhlyc
0
130
SREとソフトウェア開発者の合同チームはどのようにS3のコストを削減したか?
muziyoshiz
1
100
Access-what? why and how, A11Y for All - Nordic.js 2025
gdomiciano
1
110
生成AIを活用したZennの取り組み事例
ryosukeigarashi
0
210
ACA でMAGI システムを社内で展開しようとした話
mappie_kochi
1
270
Trust as Infrastructure
bcantrill
0
340
Featured
See All Featured
Code Reviewing Like a Champion
maltzj
525
40k
Building Adaptive Systems
keathley
43
2.8k
For a Future-Friendly Web
brad_frost
180
9.9k
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.5k
[RailsConf 2023] Rails as a piece of cake
palkan
57
5.9k
Why Our Code Smells
bkeepers
PRO
339
57k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
54
3k
How to train your dragon (web standard)
notwaldorf
96
6.3k
Code Review Best Practice
trishagee
72
19k
Designing for Performance
lara
610
69k
Practical Orchestrator
shlominoach
190
11k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
32
2.2k
Transcript
generated by Stable Diffusion XL v1.0 B 2023 2 (
) B 2023 — 2 — 2023-10-23 – p.1/64
https://speakerdeck.com/ks91 ( ) ( ) Discord Discord ( / /
) Zoom URL ( ) B 2023 — 2 — 2023-10-23 – p.2/64
( ) 1 10 16 • 2 10 23 •
3 10 30 4 11 6 5 11 13 1 6 11 20 2 7 11 27 8 12 4 Discord B 2023 — 2 — 2023-10-23 – p.3/64
– : : Ethereum ( ) ( ) Ethereum B
2023 — 2 — 2023-10-23 – p.4/64
– B 2023 — 2 — 2023-10-23 – p.5/64
ެ։ா ެ։Ͱͳ͚ΕͳΒͳ͍ ʜ ຊਓ ɾૹۚه ɾίʔυ ɾσʔλͷมԽ ɾ࣮ߦϩά ݕӾͰ͖Δୈࡾऀ ͜Εɺ
ه͍ͨ͠Μ͚ͩͲ ͋ͳͨ ॻ͍ͨΒμϝ ͜ͷ༰ ॻ͍ͨΒμϝ ॻ͍ͪΌͬͨͷʁ ͜͏ॻ͖͑·͠ΐ͏ ॻ͍ͯͳ͍ͷʁ ͜͏ॻ͔Εͨ͜ͱʹ ͠·͠ΐ͏ ॻ͍ͪΌͬͨͷʁ ফ͠·͠ΐ͏ %P4 ߈ܸͱ͔Ͱ ͯ͠ࢭΊ·͠ΐ͏ B 2023 — 2 — 2023-10-23 – p.6/64
( ) ( ) ( ) ↓ ( ( ))
(BP : Blockchain Property ) BP-1 : ( ) BP-2 : ( ( ) ) BP-3 : ( ) ( ) ( ) B 2023 — 2 — 2023-10-23 – p.7/64
( ) (LIFO : Last In, First Out) ( )
B 2023 — 2 — 2023-10-23 – p.8/64
( ) ( ) ( ) ( ) ( 16
) SHA (Secure Hash Algorithm) ( ) 1bit B 2023 — 2 — 2023-10-23 – p.9/64
( ) ( ) < , > ( ) ←
: < , > : : < , , > : OK ( 1 ) NG ( ) B 2023 — 2 — 2023-10-23 – p.10/64
BP-1 ( ), BP-2 ( ) BBc-1/BBc-2 f : →
BP-3 ( ) ( ) ( ) ← BP-2 ← BP-3 ( ) (BP-2 ) ( ) ← BP-3 (?) + ← BP-{1,2} B 2023 — 2 — 2023-10-23 – p.11/64
[Lamport 1984][Schneider 1990] (1) (2) (3) (4) ( ) ←
↑ B 2023 — 2 — 2023-10-23 – p.12/64
TX : transaction ( 4 TX ) SMRP (State Machine
Replication Problem) SMRP-1 ( ) SMRP-2 : B 2023 — 2 — 2023-10-23 – p.13/64
( ) ( ) ϒϩοΫ൪߸O ϒϩοΫ൪߸O ϒϩοΫ൪߸O ϒϩοΫ൪߸O
ϒϩοΫ൪߸O ϒϩοΫ൪߸O ϒϩοΫ൪߸O ϒϩοΫ൪߸O ͍ͪΜهɾॻ͖͑ͷίετ͕ߴ͍ྺ࢙ ࠷վ͟Μ͠ʹ͍͘ྺ࢙ ͕༗ޮ ͻͱͭखલͷϒϩοΫͷ ʮμΠδΣετʯ σδλϧॺ໊͞Εͨ ʮτϥϯβΫγϣϯ औҾ ʯ ϒϩοΫΛ࡞ΔͨΊʹɺͦͷʮμΠδΣετʯ͕͋ΔҎԼͱ͍͏݅Λຬͨͨ͠Γ 1SPPGPG8PSL Ծ௨՟ͷ࣋ͪʹԠͨ͡ݖརΛͬͨථͰউͬͨΓ 1SPPGPG4UBLF ͢Δඞཁ͕͋Δ ίετ͕͔͔Δ ϒϩοΫΛ࡞ΔਓͦͷதʹࣗʹѼͯͨ Ծ௨՟ͰͷใुΛॻ͖ࠐΉ͜ͱ͕Ͱ͖ɺ ͦͷϒϩοΫ͕༗ޮͳྺ࢙ͷதʹ͋Δ߹ʹ ݶΓใु༗ޮͱͳΔ τϥϯβΫγϣϯͷଘࡏΛ֬ೝ͢Δ ͨΊͷޮతͳํ๏͕ఏڙ͞ΕΔ ਖ਼ੑ ଘࡏੑ །Ұੑ Proof of Work ( ) . . . → B 2023 — 2 — 2023-10-23 – p.14/64
(BP-3 ) ( : ) (BP-3 ) ( : )
← NFT ( ) BP-{1,2,3} BP-{1, 2} ⇒ B 2023 — 2 — 2023-10-23 – p.15/64
(Confidentiality) BP-{1,2,3} ↑ ( = ) (Integrity) BP-3 (Availability) BP-2
B 2023 — 2 — 2023-10-23 – p.16/64
2009 ↑ 14 ( 5 ) B 2023 — 2
— 2023-10-23 – p.17/64
( ) ADR (Active (space) Debris Removal) : https://doi.org/10.1109/TCSS.2018.2890655 (1930
) ( ) B 2023 — 2 — 2023-10-23 – p.18/64
( ) ( ) ( ) B 2023 — 2
— 2023-10-23 – p.19/64
( ) ( - ) : https://doi.org/10.1016/j.future.2019.05.019 B 2023 —
2 — 2023-10-23 – p.20/64
( ) ( ) ( ) B 2023 — 2
— 2023-10-23 – p.21/64
( ) B 2023 — 2 — 2023-10-23 – p.22/64
/ ( ) ( ) ( ) ( ) B
2023 — 2 — 2023-10-23 – p.23/64
( ) ( ) ( ) B 2023 — 2
— 2023-10-23 – p.24/64
( ) : https://www.lij.jp/html/jli/jli_2017/ 2017summer_p018.pdf B 2023 — 2 —
2023-10-23 – p.25/64
( ) ( ) B 2023 — 2 — 2023-10-23
– p.26/64
B 2023 — 2 — 2023-10-23 – p.27/64
with ( ) ( ) : https://doi.org/10.1016/j.icte.2021.08.012 ( ) B
2023 — 2 — 2023-10-23 – p.28/64
DNS : https://ieeexplore.ieee.org/document/9686409 ( ) IP AS B 2023 —
2 — 2023-10-23 – p.29/64
( ) ( ) : https://ieeexplore.ieee.org/document/9686409 ( ) : https://doi.org/10.1016/j.icte.2021.08.012
(web ) B 2023 — 2 — 2023-10-23 – p.30/64
( ) ( ) ( ) : https://doi.org/10.1016/j.icte.2021.08.012 ( )
( ) ( ) : https://ieeexplore.ieee.org/document/9686409 B 2023 — 2 — 2023-10-23 – p.31/64
( ) ( ) : https://ieeexplore.ieee.org/document/9686409 3D ( ) :
HACCP ( ) B 2023 — 2 — 2023-10-23 – p.32/64
— τʔΫϯ ସ՟ฎ εϚʔτίϯτϥΫτ ݕূՄೳͳঢ়ଶϚγϯ ϓϩϏφϯε དྷྺূ໌ ସՄೳ ঈؐෆೳ
ସՄೳ ঈؐՄೳ ସෆೳ ঈؐՄೳ ସෆೳ ঈؐෆೳ ূ໌͢Δ ಉఆ͢Δ ࢧ͍ ࠷ॳͷԠ༻ *%Χʔυ ηΩϡϦςΟ τʔΫϯ ূ݊ ηϯαʔ ྲྀɾ Ҩݴॻ อݥਃ ͢Δ ײ͢Δ தԝۜߦ σδλϧ௨՟ ҭήʔϜ ൿີ伴Λ͑Δ͔Βຊਓʁ ෛ࠴ Ξηοτͷ දݱΛҠసͰ͖Δʁ ొ͞Εͨίʔυͱ ͦͷ࣮ߦϩάͱ݁Ռͷ ਅਖ਼ੑΛ୲อͰ͖Δʁ ݖҖ͕ Կ͔ͷ༰Λূ໌͢Δʁ ࣋ଓ͢Δଘࡏʹ͍ͭͯ هΛΞοϓσʔτՄʁ ओମ͕͍ͳ͘ͳͬͯ աڈͷσʔλ༗ޮʁ /'5 Ұൠతͳ ೝࣝ ػೳͷ ੳ݁Ռ B 2023 — 2 — 2023-10-23 – p.33/64
Ethereum macOS (Ventura 13.6) + Homebrew Linux (Ubuntu 22.04) (x86/AMD64
and ARM) macOS + Lima (Linux Machines) mac M1/M2 (Apple )(ARM) x86/AMD64 Windows 11 + Windows Subsystem for Linux (Ubuntu ) Ethereum solidity brownie B 2023 — 2 — 2023-10-23 – p.34/64
macOS : Homebrew (Apple macOS ) UNIX macOS Lima Homebrew
brew Apple brew ( ) brew https://github.com/homebrew/install Path : https://zenn.dev/tet0h/articles/a92651d52bd82460aefb B 2023 — 2 — 2023-10-23 – p.35/64
macOS : Rosetta 2 Apple x86/AMD64 ( ) $ softwareupdate
–install-rosetta B 2023 — 2 — 2023-10-23 – p.36/64
macOS : Lima macOS Linux ( ) https://github.com/lima-vm/lima QEMU (
) Rosetta 2 Apple x86/AMD64 brew $ brew install lima Ubuntu 22.04 (x86/AMD64) “kmd.yaml” $ limactl start kmd.yaml B 2023 — 2 — 2023-10-23 – p.37/64
macOS : Lima Linux (Ubuntu) x86_64 $ limactl list Linux
(exit ) $ limactl shell kmd Linux limactl list STATUS Stopped limactl start kmd “.lima” diffdisk 100GB B 2023 — 2 — 2023-10-23 – p.38/64
Solidity Ethereum ( ) http://solidity.readthedocs.io/en/latest/installing-solidity.html Linux (on Windows) “sudo apt”,
macOS “brew” Linux ARM git clone dependencies solc 0.8.21 (10/16 ) $ solc --version brownie py-solc-x solc (dependencies) ( solc py-solc-x ) B 2023 — 2 — 2023-10-23 – p.39/64
Ganache Ethereum RPC npm ( ) macOS https://qiita.com/kyosuke5_20/items/c5f68fc9d89b84c0df09 Linux https://qiita.com/seibe/items/36cef7df85fe2cefa3ea
npm Ganache $ sudo npm install -g ganache B 2023 — 2 — 2023-10-23 – p.40/64
Python3 ( Python3.9 ) macOS $ brew install
[email protected]
Linux
$ sudo add-apt-repository ppa:deadsnakes/ppa $ sudo apt update $ sudo apt install python3.9 python3.9-dev python3.9-venv python3.9-tk B 2023 — 2 — 2023-10-23 – p.41/64
macOS : . . . macOS wget brew dyld: Library
not loaded: /usr/local/opt/gettext/lib/libintl.8.dylib $ brew uninstall --force gettext $ brew install gettext B 2023 — 2 — 2023-10-23 – p.42/64
Python (venv) macOS (Linux python3 ) ‘python3.9’ ‘python3’ $ python3.9
-m venv bbc2env $ source bbc2env/bin/activate (bbc2env) $ pip install -U pip bbc2env ( BBc-2 ) ( ) (bbc2env) $ deactivate B 2023 — 2 — 2023-10-23 – p.43/64
Brownie Python Ethereum https://eth-brownie.readthedocs.io Brownie $ pip install eth-brownie version
1.19.3 (10/16 ) PyYAML $ pip install "cython<3.0.0" wheel && pip install pyyaml==5.4.1 --no-build-isolation B 2023 — 2 — 2023-10-23 – p.44/64
$ brownie init ( ERC-20 ) $ brownie bake token
$ cd token B 2023 — 2 — 2023-10-23 – p.45/64
contracts (macOS Linux (x86/AMD64) ) $ brownie compile Linux (ARM)
(AMD64 ) $ python # >>> import solcx >>> solcx.compile_solc(’0.6.12’) # >>> quit() /tmp ∼/.solcx/solc-v0.6.12 ( ) $ pytest tests B 2023 — 2 — 2023-10-23 – p.46/64
Brownie $ brownie console Python >>> len(accounts) 10 >>> accounts[0].balance()
100000000000000000000 >>> quit() B 2023 — 2 — 2023-10-23 – p.47/64
Ethereum Görli B 2023 — 2 — 2023-10-23 – p.48/64
infura.io Brownie https://infura.io SIGN UP PROJECT ID infura Ethereum API
infura . . . infura.io PROJECT ID WEB3_INFURA_PROJECT_ID PROJECT ID (∼/.bash_profile ) $ export WEB3_INFURA_PROJECT_ID= PROJECT ID B 2023 — 2 — 2023-10-23 – p.49/64
G¨ orli ETH brownie console Görli >>> network.disconnect() >>> network.connect(’goerli’)
>>> len(accounts) 0 >>> accounts.add() <LocalAccount object ’ 16 ’> >>> accounts[0].private_key 16 >>> quit() Görli Testnet ETH Faucet ETH https://goerlifaucet.com ( ) ( ) https://metamask.io/ B 2023 — 2 — 2023-10-23 – p.50/64
G¨ orli ETH brownie console Görli ETH >>> network.disconnect() >>>
network.connect(’goerli’) >>> len(accounts) 0 >>> accounts.add( 16 ) <LocalAccount object ’ 16 ’> >>> accounts[0].balace() ETH >>> quit() ETH >>> accounts[0].transfer(accounts[1], "0.01 ether") B 2023 — 2 — 2023-10-23 – p.51/64
Ethereum B 2023 — 2 — 2023-10-23 – p.52/64
Ethereum Vitalik Buterin, “Ethereum White Paper: A NEXT GENERATION SMART
CONTRACT & DECENTRALIZED APPLICATION PLATFORM” 12 (= ) = ⇒ → Dapps ( / / ) B 2023 — 2 — 2023-10-23 – p.53/64
( ) B 2023 — 2 — 2023-10-23 – p.54/64
. . . B 2023 — 2 — 2023-10-23 –
p.55/64
vs. B 2023 — 2 — 2023-10-23 – p.56/64
= run B 2023 — 2 — 2023-10-23 – p.57/64
Ether Ethereum EOA : Externally-Owned Account ( ) Ether EVM
EVM B 2023 — 2 — 2023-10-23 – p.58/64
EVM : Ethereum Virtual Machine ঢ়ଶ ֎෦ΞΫλʔ ΞΧϯτ &7. ίʔυ
&UIFSˠ(BT ىಈ ίϯτϥΫτ ϝοηʔδ͔ɺ৽͍ࣗ͠ಈΦϒδΣΫτ ΞΧϯτؒͰΓऔΓ͞ΕΔσʔλ&UIFS ετϨʔδ ঢ়ଶ` τϥϯβΫγϣϯ ηοτ σδλϧॺ໊ &7. ਓؒͱ͔ ࣗಈ ΦϒδΣΫτ Gas ( EVM = ( burn)) . . . B 2023 — 2 — 2023-10-23 – p.59/64
EVM : : ← : Solidity — JavaScript LLL —
Lisp Vyper — Python Fe — Vyper Rust ← NEW! Solidity Vyper Python B 2023 — 2 — 2023-10-23 – p.60/64
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; } } B 2023 — 2 — 2023-10-23 – p.61/64
( , ) (constructor) (deploy) = ( ) ( )
ETH Trusted Actor Model B 2023 — 2 — 2023-10-23 – p.62/64
Ethereum B 2023 — 2 — 2023-10-23 – p.63/64
B 2023 — 2 — 2023-10-23 – p.64/64