Bitcoin, security, entrepreneur, coder, hacker, pundit, humanist, pacifist. Working on crypto-currencies, wrote Mastering Bitcoin http://bitcoinbook.info

Bitcoin Educator, Developer and Entrepreneur. Book: https://amzn.to/2RSlnTb PGP Fingerprint: C1D7 97BE 7D10 5291 228C D70C FAA6 17E3 2679 E455

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