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
What is Blockchain?
Search
BITBEARS | Waseda Blockchain Club
July 05, 2018
Technology
0
40
What is Blockchain?
BITBEARS | Waseda Blockchain Club
July 05, 2018
Tweet
Share
More Decks by BITBEARS | Waseda Blockchain Club
See All by BITBEARS | Waseda Blockchain Club
The_World_of_Web_3.0-japanese_ver_for_posting-.pdf
bitbears
0
76
What is Blockchain? -Japanese version-
bitbears
0
88
トークンエコノミーの可能性
bitbears
1
1.1k
Other Decks in Technology
See All in Technology
LangChain Interrupt & LangChain Ambassadors meetingレポート
os1ma
2
320
Reach American Airlines®️ Instantly: 19 Calling Methods for Fast Support in the USA
flyamerican
1
170
Claude Code に プロジェクト管理やらせたみた
unson
6
4.1k
使いたいMCPサーバーはWeb APIをラップして自分で作る #QiitaBash
bengo4com
0
1.9k
マネジメントって難しい、けどおもしろい / Management is tough, but fun! #em_findy
ar_tama
7
1.1k
Should Our Project Join the CNCF? (Japanese Recap)
whywaita
PRO
0
340
MobileActOsaka_250704.pdf
akaitadaaki
0
130
Lakebaseを使ったAIエージェントを実装してみる
kameitomohiro
0
130
MUITにおける開発プロセスモダナイズの取り組みと開発生産性可視化の取り組みについて / Modernize the Development Process and Visualize Development Productivity at MUIT
muit
1
17k
Delegating the chores of authenticating users to Keycloak
ahus1
0
140
KubeCon + CloudNativeCon Japan 2025 Recap by CA
ponkio_o
PRO
0
300
AIの全社活用を推進するための安全なレールを敷いた話
shoheimitani
2
520
Featured
See All Featured
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
34
5.9k
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
107
19k
Reflections from 52 weeks, 52 projects
jeffersonlam
351
20k
What's in a price? How to price your products and services
michaelherold
246
12k
Into the Great Unknown - MozCon
thekraken
40
1.9k
ピンチをチャンスに:未来をつくるプロダクトロードマップ #pmconf2020
aki_iinuma
126
53k
Navigating Team Friction
lara
187
15k
Build The Right Thing And Hit Your Dates
maggiecrowley
36
2.8k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
Rails Girls Zürich Keynote
gr2m
95
14k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
1.8k
Facilitating Awesome Meetings
lara
54
6.4k
Transcript
What is Blockchain? ーfor beginnersー Tomoaki | Waseda BITBEARS
@tomoaki25_official I am a illustrator designer. A Blockchain researcher &
developer. The Co-founder of BITBEARS. And then a student.
Active on Mon.&Tue. at Waseda University building 3! Feel free
to DM us if you’re interested in joining!:-) @bitbears_wasedablockchain
Follow us and check out our latest updates! @waseda_BITBEARS
What is BLOCKCHAIN? ❓
P2P network Blockchain is a decentralized P2P network. Decentralized
Why decentralize? Every time you use the Internet, you have
to access a server from your device. Current Internet Server
Problems of the Internet.
Equifax data breach Hackers exposed the Social Security numbers, drivers
licenses and other sensitive info of 143 million Americans
Edward Snowden’s confession Edward Snowden whitsleblower of The NSA surviilance
If decentralized... Transparent
Safer when hacked
Hard to supervise
P2P network What is P2P and Why?
If P2P...
You don’t have to rely on a third party. “Trustless”
How does BLOCKCHAIN work?
Blockchain contains blocks connected to chain.
What is Minning? Gold Bitcoin
Each block contains a “previous block hedder”. transactions transactions transactions
previous block hedder previous block hedder previous block hedder nonce nonce nonce Block hedder Block hedder Block hedder Block n Block n+2 Block n+1
If changed... Each block contains a“previous block hedder”.
Blockchain is like multiple layers. New blocks Recent blocks Old
blocks Very hard to change Almost impossible to change You shouldn’t even think about changing them
Blockchain is immutable. immutable
Why Bitcoin matters? Blockchain Users Miners (12.5BTC+Fees) Transaction Transaction Transaction
want to use Bitcoin but also want someone to check the transactions. want to earn Bitcoin.
Summary Blockchain is... Decentralized P2P Transparent Immutable Bitcoin is... Decentralized
Autonomous
Thank you