Ruby

Conf

Taiwan

2015

R&B: When Ruby Met Bitcoin

Who Am I?

古傑芳

@josephku

2009

Ruby

2010

2011

2012

Bitcoin

R & B

Rhythm & Blues

Ruby & Bitcoin

When Ruby Met Bitcoin

Yukihiro Matsumoto

Matz

Satoshi Nakamoto

Yukihiro Matsumoto

Satoshi Nakamoto

Yukihiro Matsumoto

Satoshi Nakamoto

Yukihiro Matsumoto

Satoshi Nakamoto

Money

Money?

Currency

Bitcoin

Have you heard of Bitcoin?

I have one bitcoin.

v0.11.0

!

Node.js

v0.12.7

21 Million

10-6 btc = 1 bit

10-8 btc = 1 satoshi

Address

Wallet

Demo Time!

Blockchain

Block

SHA256(Block Data + Nonce) < Target

Difficulty = Maximum Target / Target

Internet of Things

Mining

NT$ 105

0.00815 BTC

Bitcoin Only!!

After a month…

0.00000422 BTC

7.394Mh/s

23,285 days

63.79 years

Can I just pay by NT$105?

Game

1 = 1 bit

Demo Time!

Block Size

Any questions?

Thank you!