R&B: When Ruby Met Bitcoin

* Talk @ RubyConf Taiwan 2015 (2015.09.12)

1. RubyConf Taiw an 2015 R&B: When Ruby Met Bitcoin
2. Who Am I?
3. 古傑芳
4. @josephku
8. Ruby
12. Bitcoin
13. R & B
14. Rhythm & Blues
15. Ruby & Bitcoin
16. When Ruby Met Bitcoin
17. Yukihiro Matsumoto
18. Matz
21. Satoshi Nakamoto
26. Yukihiro Matsumoto Satoshi Nakamoto
27. Yukihiro Matsumoto Satoshi Nakamoto
28. Yukihiro Matsumoto Satoshi Nakamoto
34. Money
36. Money?
37. Currency
48. Bitcoin
49. Have you heard of Bitcoin? I have one bitcoin.
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
64. SHA256(Block Data + Nonce) < Target
65. Difficulty = Maximum Target / Target
69. Internet of Things
70. Mining
73. NT$ 105
74. 0.00815 BTC
76. Bitcoin Only!!
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?
89. Game
94. 1 = 1 bit
97. Demo Time!
99. Block Size
103. Any questions?
104. Thank you!