#dc comics#batman#dc#bruce wayne#batfam#dick grayson#batfamily#dc fanart#tim drake
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(3/3) Dr. Leemon Baird @ #CESC2017 on Why Math Matters in #blockchain #bitcoin #ethereum #cryptocurrency #fintech (at Dallas, Texas)
(2/3) Dr. Leemon Baird @ #CESC2017 on Why Math Matters in #blockchain #btc #eth #altcoin #cryptocurrency (at Toronto, Ontario)
(1/3) Dr. Leemon Baird @ #CESC2017 on Why Math Matters in #blockchain #bitcoin #ethereum (at San Francisco, California)
