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RubyConf Taiw an 2015 R&B: When Ruby Met Bitcoin
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Who Am I?
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古傑芳
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@josephku
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2009
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Ruby
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2010
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2011
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2012
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Bitcoin
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R & B
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Rhythm & Blues
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Ruby & Bitcoin
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When Ruby Met Bitcoin
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Yukihiro Matsumoto
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Matz
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Satoshi Nakamoto
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Yukihiro Matsumoto Satoshi Nakamoto
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Yukihiro Matsumoto Satoshi Nakamoto
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Yukihiro Matsumoto Satoshi Nakamoto
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Money
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Money?
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Currency
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Bitcoin
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Have you heard of Bitcoin? I have one bitcoin.
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v0.11.0
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!
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Node.js
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v0.12.7
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21 Million
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10-6 btc = 1 bit
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10-8 btc = 1 satoshi
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Address
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Wallet
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Demo Time!
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Blockchain
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Block
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SHA256(Block Data + Nonce) < Target
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Difficulty = Maximum Target / Target
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Internet of Things
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Mining
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NT$ 105
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0.00815 BTC
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Bitcoin Only!!
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After a month…
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0.00000422 BTC
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7.394Mh/s
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23,285 days
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63.79 years
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Can I just pay by NT$105?
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Game
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1 = 1 bit
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Demo Time!
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Block Size
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Any questions?
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Thank you!