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R&B: When Ruby Met Bitcoin

Joseph Ku
September 12, 2015

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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  7. 2009

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  8. Ruby

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  9. 2010

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  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

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  15. Ruby & Bitcoin

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  16. When Ruby
    Met Bitcoin

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  17. Yukihiro Matsumoto

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  18. Matz

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  21. Satoshi Nakamoto

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  26. Yukihiro Matsumoto
    Satoshi Nakamoto

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  27. Yukihiro Matsumoto
    Satoshi Nakamoto

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  28. Yukihiro Matsumoto
    Satoshi Nakamoto

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  34. Money

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  36. Money?

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  37. Currency

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  48. Bitcoin

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

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  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

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  59. Wallet

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  60. Demo Time!

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  61. Blockchain

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  62. Block

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  63. View Slide

  64. SHA256(Block Data + Nonce) < Target

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  65. Difficulty = Maximum Target / Target

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  69. Internet of Things

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  70. Mining

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  73. NT$ 105

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  74. 0.00815 BTC

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  76. Bitcoin Only!!

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  79. After a month…

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  80. 0.00000422 BTC

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  81. 7.394Mh/s

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  82. 23,285 days

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  83. 63.79 years

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  84. Can I just pay by
    NT$105?

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  89. Game

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  94. 1 = 1 bit

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  97. Demo Time!

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  99. Block Size

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  103. Any questions?

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  104. Thank you!

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