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R&B: When Ruby Met Bitcoin

Joseph Ku
September 12, 2015
Technology
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110

R&B: When Ruby Met Bitcoin

* Talk @ RubyConf Taiwan 2015 (2015.09.12)

Joseph Ku

September 12, 2015
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Transcript

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

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  2. Who Am I?

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  3. 古傑芳

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  4. @josephku

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  5. View Slide

  6. View Slide

  7. 2009

    View Slide

  8. Ruby

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  9. 2010

    View Slide

  10. 2011

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  11. 2012

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  12. Bitcoin

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  13. R & B

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  14. Rhythm & Blues

    View Slide

  15. Ruby & Bitcoin

    View Slide

  16. When Ruby
    Met Bitcoin

    View Slide

  17. Yukihiro Matsumoto

    View Slide

  18. Matz

    View Slide

  19. View Slide

  20. View Slide

  21. Satoshi Nakamoto

    View Slide

  22. View Slide

  23. View Slide

  24. View Slide

  25. View Slide

  26. Yukihiro Matsumoto
    Satoshi Nakamoto

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  27. Yukihiro Matsumoto
    Satoshi Nakamoto

    View Slide

  28. Yukihiro Matsumoto
    Satoshi Nakamoto

    View Slide

  29. View Slide

  30. View Slide

  31. View Slide

  32. View Slide

  33. View Slide

  34. Money

    View Slide

  35. View Slide

  36. Money?

    View Slide

  37. Currency

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  38. View Slide

  39. View Slide

  40. View Slide

  41. View Slide

  42. View Slide

  43. View Slide

  44. View Slide

  45. View Slide

  46. View Slide

  47. View Slide

  48. Bitcoin

    View Slide

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

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  50. View Slide

  51. v0.11.0

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  52. !

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  53. Node.js

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  54. v0.12.7

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  55. 21 Million

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  56. 10-6 btc = 1 bit

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  57. 10-8 btc = 1 satoshi

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  58. Address

    View Slide

  59. Wallet

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  60. Demo Time!

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  61. Blockchain

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  62. Block

    View Slide

  63. View Slide

  64. SHA256(Block Data + Nonce) < Target

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  65. Difficulty = Maximum Target / Target

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  66. View Slide

  67. View Slide

  68. View Slide

  69. Internet of Things

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  70. Mining

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  71. View Slide

  72. View Slide

  73. NT$ 105

    View Slide

  74. 0.00815 BTC

    View Slide

  75. View Slide

  76. Bitcoin Only!!

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  77. View Slide

  78. View Slide

  79. After a month…

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  80. 0.00000422 BTC

    View Slide

  81. 7.394Mh/s

    View Slide

  82. 23,285 days

    View Slide

  83. 63.79 years

    View Slide

  84. Can I just pay by
    NT$105?

    View Slide

  85. View Slide

  86. View Slide

  87. View Slide

  88. View Slide

  89. Game

    View Slide

  90. View Slide

  91. View Slide

  92. View Slide

  93. View Slide

  94. 1 = 1 bit

    View Slide

  95. View Slide

  96. View Slide

  97. Demo Time!

    View Slide

  98. View Slide

  99. Block Size

    View Slide

  100. View Slide

  101. View Slide

  102. View Slide

  103. Any questions?

    View Slide

  104. Thank you!

    View Slide