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
R&B: When Ruby Met Bitcoin
Search
Sponsored
·
SiteGround - Reliable hosting with speed, security, and support you can count on.
→
Joseph Ku
September 12, 2015
Technology
260
0
Share
R&B: When Ruby Met Bitcoin
* Talk @ RubyConf Taiwan 2015 (2015.09.12)
Joseph Ku
September 12, 2015
More Decks by Joseph Ku
See All by Joseph Ku
第一次去 WWDC 就上手
joseph
0
220
Swift Introduction to Swift in Ruby
joseph
0
170
手機遊戲開發的兩三事
joseph
0
120
RubyMotion Gets A Cool New Friend: mruby on iOS
joseph
2
1k
RubyMotion: Hack Your iOS App Like Never Before
joseph
5
1.1k
Other Decks in Technology
See All in Technology
互換性のある(らしい)DBへの移行など考えるにあたってたいへんざっくり
sejima
PRO
0
500
Oracle AI Database@AWS:サービス概要のご紹介
oracle4engineer
PRO
3
2k
スケーリングを封じられたEC2を救いたい
senseofunity129
0
130
「できない」のアウトプット 同人誌『精神を壊してからの』シリーズ出版を 通して得られたこと
comi190327
3
480
【社内勉強会】新年度からコーディングエージェントを使いこなす - 構造と制約で引き出すClaude Codeの実践知
nwiizo
34
16k
【Oracle Cloud ウェビナー】データ主権はクラウドで守れるのか?NTTデータ様のOracle Alloyで実現するソブリン対応クラウドの最適解
oracle4engineer
PRO
3
130
昔話で振り返るAWSの歩み ~S3誕生から20年、クラウドはどう進化したのか~
nrinetcom
PRO
0
120
Zephyr(RTOS)でOpenPLCを実装してみた
iotengineer22
0
170
Oracle Cloud Infrastructure:2026年3月度サービス・アップデート
oracle4engineer
PRO
0
260
20260326_AIDD事例紹介_ULSC.pdf
findy_eventslides
0
290
AIエージェント勉強会第3回 エージェンティックAIの時代がやってきた
ymiya55
0
180
GitHub Advanced Security × Defender for Cloudで開発とSecOpsのサイロを超える: コードとクラウドをつなぐ、開発プラットフォームのセキュリティ
yuriemori
1
120
Featured
See All Featured
世界の人気アプリ100個を分析して見えたペイウォール設計の心得
akihiro_kokubo
PRO
68
38k
We Are The Robots
honzajavorek
0
210
The Illustrated Guide to Node.js - THAT Conference 2024
reverentgeek
1
320
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
52
5.9k
Build your cross-platform service in a week with App Engine
jlugia
234
18k
What does AI have to do with Human Rights?
axbom
PRO
1
2.1k
Tell your own story through comics
letsgokoyo
1
880
Self-Hosted WebAssembly Runtime for Runtime-Neutral Checkpoint/Restore in Edge–Cloud Continuum
chikuwait
0
440
[SF Ruby Conf 2025] Rails X
palkan
2
880
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Max Prin - Stacking Signals: How International SEO Comes Together (And Falls Apart)
techseoconnect
PRO
0
140
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
141
35k
Transcript
RubyConf Taiw an 2015 R&B: When Ruby Met Bitcoin
Who Am I?
古傑芳
@josephku
None
None
2009
Ruby
2010
2011
2012
Bitcoin
R & B
Rhythm & Blues
Ruby & Bitcoin
When Ruby Met Bitcoin
Yukihiro Matsumoto
Matz
None
None
Satoshi Nakamoto
None
None
None
None
Yukihiro Matsumoto Satoshi Nakamoto
Yukihiro Matsumoto Satoshi Nakamoto
Yukihiro Matsumoto Satoshi Nakamoto
None
None
None
None
None
Money
None
Money?
Currency
None
None
None
None
None
None
None
None
None
None
Bitcoin
Have you heard of Bitcoin? I have one bitcoin.
None
v0.11.0
!
Node.js
v0.12.7
21 Million
10-6 btc = 1 bit
10-8 btc = 1 satoshi
Address
Wallet
Demo Time!
Blockchain
Block
None
SHA256(Block Data + Nonce) < Target
Difficulty = Maximum Target / Target
None
None
None
Internet of Things
Mining
None
None
NT$ 105
0.00815 BTC
None
Bitcoin Only!!
None
None
After a month…
0.00000422 BTC
7.394Mh/s
23,285 days
63.79 years
Can I just pay by NT$105?
None
None
None
None
Game
None
None
None
None
1 = 1 bit
None
None
Demo Time!
None
Block Size
None
None
None
Any questions?
Thank you!