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
34
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
69
What is Blockchain? -Japanese version-
bitbears
0
77
トークンエコノミーの可能性
bitbears
1
1k
Other Decks in Technology
See All in Technology
攻撃者の視点で社内リソースはどう見えるのかを ASMで実現する
hikaruegashira
3
1.9k
アクセシブルなマークアップの上に成り立つユーザーファーストなドロップダウンメニューの実装 / 20250127_cloudsign_User1st_FE
bengo4com
1
1.1k
CNAPPから考えるAWSガバナンスの実践と最適化
nrinetcom
PRO
1
240
GitLab SelfManagedをCodePipelineのソースに設定する/SetGitLabSelfManagedtoCodePipeline
norihiroishiyama
1
100
タイミーのデータ活用を支えるdbt Cloud導入とこれから
ttccddtoki
2
470
srekaigi2025-hajimete-ippo-aws
masakichieng
0
180
Autify Company Deck
autifyhq
2
41k
第27回クラウド女子会 ~re:Invent 振り返りLT会~ 私の周辺で反響のあった re:Invent 2024 アップデートつれづれ/reinvent-2024-update-reverberated-around-me
emiki
1
570
Tech Blog執筆のモチベート向上作戦
imamura_ko_0314
0
640
TSのコードをRustで書き直した話
askua
4
990
クロスアカウントな RDS Snapshot Export による カジュアルなデータ集約の仕組み / 202501-finatext-technight-lt
wa6sn
1
120
プロダクト開発、インフラ、コーポレート、そしてAIとの共通言語としての Terraform / Terraform as a Common Language for Product Development, Infrastructure, Corporate Engineering, and AI
yuyatakeyama
6
1.4k
Featured
See All Featured
The Straight Up "How To Draw Better" Workshop
denniskardys
232
140k
A Tale of Four Properties
chriscoyier
157
23k
Build your cross-platform service in a week with App Engine
jlugia
229
18k
Fireside Chat
paigeccino
34
3.2k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
3
260
Building a Scalable Design System with Sketch
lauravandoore
460
33k
Writing Fast Ruby
sferik
628
61k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
49
2.2k
Why You Should Never Use an ORM
jnunemaker
PRO
55
9.2k
Making the Leap to Tech Lead
cromwellryan
133
9k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
127
18k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
666
120k
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