Upgrade to Pro — share decks privately, control downloads, hide ads and more …

R&B: When Ruby Met Bitcoin

Avatar for Joseph Ku Joseph Ku
September 12, 2015
Technology
0
230

R&B: When Ruby Met Bitcoin

* Talk @ RubyConf Taiwan 2015 (2015.09.12)

Avatar for Joseph Ku

Joseph Ku

September 12, 2015
Tweet

More Decks by Joseph Ku

See All by Joseph Ku
第一次去 WWDC 就上手
Avatar for Joseph Ku joseph
0
210
Swift Introduction to Swift in Ruby
Avatar for Joseph Ku joseph
0
160
手機遊戲開發的兩三事
Avatar for Joseph Ku joseph
0
120
RubyMotion Gets A Cool New Friend: mruby on iOS
Avatar for Joseph Ku joseph
2
950
RubyMotion: Hack Your iOS App Like Never Before
Avatar for Joseph Ku joseph
5
1k

Other Decks in Technology

See All in Technology
Oracle Cloud Infrastructure IaaS 新機能アップデート 2025/06 - 2025/08
Avatar for oracle4engineer oracle4engineer
PRO
0
110
Platform開発が先行する Platform Engineeringの違和感
Avatar for KintoTech_Dev kintotechdev
4
580
Claude Code でアプリ開発をオートパイロットにするためのTips集 Zennの場合 / Claude Code Tips in Zenn
Avatar for Yusuke Wada wadayusuke
4
380
Firestore → Spanner 移行 を成功させた段階的移行プロセス
Avatar for a-thug athug
1
500
スクラムガイドに載っていないスクラムのはじめかた - チームでスクラムをはじめるときに知っておきたい勘所を集めてみました！ - / How to start Scrum that is not written in the Scrum Guide 2nd
Avatar for TAKAKING22 takaking22
1
140
S3アクセス制御の設計ポイント
Avatar for tommy tommy0124
3
200
roppongirb_20250911
Avatar for Kuniaki IGARASHI igaiga
1
240
IoT x エッジAI - リアルタイ ムAI活用のPoCを今すぐ始め る方法 -
Avatar for niizawat niizawat
0
100
COVESA VSSによる車両データモデルの標準化とAWS IoT FleetWiseの活用
Avatar for Yuto Osawa osawa
1
380
未経験者・初心者に贈る！40分でわかるAndroidアプリ開発の今と大事なポイント
Avatar for operandoOS operando
5
730
新規プロダクトでプロトタイプから正式リリースまでNext.jsで開発したリアル
Avatar for かわりく / Kawano Riku kawanoriku0
1
180
ブロックテーマ時代における、テーマの CSS について考える Toro_Unit / 2025.09.13 @ Shinshu WordPress Meetup
Avatar for Toro_Unit (Hiroshi Urabe) torounit
0
130

Featured

See All Featured
Balancing Empowerment & Direction
Avatar for Lara Hogan lara
3
620
Typedesign – Prime Four
Avatar for Hannes Fritz hannesfritz
42
2.8k
Practical Orchestrator
Avatar for Shlomi Noach shlominoach
190
11k
Reflections from 52 weeks, 52 projects
Avatar for Jefferson Lam jeffersonlam
352
21k
Being A Developer After 40
Avatar for Adrian Kosmaczewski akosma
90
590k
Why Our Code Smells
Avatar for Brandon Keepers bkeepers
PRO
339
57k
Designing Dashboards & Data Visualisations in Web Apps
Avatar for Des Traynor destraynor
231
53k
Raft: Consensus for Rubyists
Avatar for Patrick Van Stee vanstee
140
7.1k
Writing Fast Ruby
Avatar for Erik Berlin sferik
628
62k
Optimising Largest Contentful Paint
Avatar for Harry Roberts csswizardry
37
3.4k
Done Done
Avatar for chrislema chrislema
185
16k
4 Signs Your Business is Dying
Avatar for Josh Pigford shpigford
184
22k

Transcript

  1. RubyConf Taiw an 2015 R&B: When Ruby Met Bitcoin

  2. Who Am I?

  3. 古傑芳

  4. @josephku

  5. None
  6. None

  7. 2009

  8. Ruby

  9. 2010

  10. 2011

  11. 2012

  12. Bitcoin

  13. R & B

  14. Rhythm & Blues

  15. Ruby & Bitcoin

  16. When Ruby Met Bitcoin

  17. Yukihiro Matsumoto

  18. Matz

  19. None
  20. None

  21. Satoshi Nakamoto

  22. None
  23. None
  24. None
  25. None

  26. Yukihiro Matsumoto Satoshi Nakamoto

  27. Yukihiro Matsumoto Satoshi Nakamoto

  28. Yukihiro Matsumoto Satoshi Nakamoto

  29. None
  30. None
  31. None
  32. None
  33. None

  34. Money

  35. None

  36. Money?

  37. Currency

  38. None
  39. None
  40. None
  41. None
  42. None
  43. None
  44. None
  45. None
  46. None
  47. None

  48. Bitcoin

  49. Have you heard of Bitcoin? I have one bitcoin.

  50. None

  51. v0.11.0

  52. !

  53. Node.js

  54. v0.12.7

  55. 21 Million

  56. 10-6 btc = 1 bit

  57. 10-8 btc = 1 satoshi

  58. Address

  59. Wallet

  60. Demo Time!

  61. Blockchain

  62. Block

  63. None

  64. SHA256(Block Data + Nonce) < Target

  65. Difficulty = Maximum Target / Target

  66. None
  67. None
  68. None

  69. Internet of Things

  70. Mining

  71. None
  72. None

  73. NT$ 105

  74. 0.00815 BTC

  75. None

  76. Bitcoin Only!!

  77. None
  78. None

  79. After a month…

  80. 0.00000422 BTC

  81. 7.394Mh/s

  82. 23,285 days

  83. 63.79 years

  84. Can I just pay by NT$105?

  85. None
  86. None
  87. None
  88. None

  89. Game

  90. None
  91. None
  92. None
  93. None

  94. 1 = 1 bit

  95. None
  96. None

  97. Demo Time!

  98. None

  99. Block Size

  100. None
  101. None
  102. None

  103. Any questions?

  104. Thank you!