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67 |
67 |
68 {\bf About Bitcoins:} |
68 {\bf About Bitcoins:} |
69 |
69 |
70 \begin{textblock}{2.5}(11.5,10) |
70 \begin{textblock}{2.5}(11.5,10) |
71 \begin{bubble}[2.5cm] |
71 \begin{bubble}[2.5cm] |
72 \it anonymous? |
72 \it bitcoins cannot get lost, |
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73 all transactions are recorded |
73 \end{bubble} |
74 \end{bubble} |
74 \end{textblock} |
75 \end{textblock} |
75 |
76 |
76 \begin{textblock}{5}(3.5,4) |
77 \begin{textblock}{5}(3.5,4) |
77 \begin{bubble}[5cm] |
78 \begin{bubble}[5cm] |
78 \it cannot be controlled by the government? |
79 \it not regulated by any government |
79 \end{bubble} |
80 \end{bubble} |
80 \end{textblock} |
81 \end{textblock} |
81 |
82 |
82 \begin{textblock}{4}(2,9) |
83 \begin{textblock}{4}(2,9) |
83 \begin{bubble}[4cm] |
84 \begin{bubble}[4cm] |
85 \end{bubble} |
86 \end{bubble} |
86 \end{textblock} |
87 \end{textblock} |
87 |
88 |
88 \begin{textblock}{5.7}(3,13) |
89 \begin{textblock}{5.7}(3,13) |
89 \begin{bubble}[5.7cm] |
90 \begin{bubble}[5.7cm] |
90 \it it takes 0..10 mins to pay with Bitcoins |
91 \it fixed amount of bitcoins in circulation (no inflation) |
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92 |
91 \end{bubble} |
93 \end{bubble} |
92 \end{textblock} |
94 \end{textblock} |
93 |
95 |
94 \begin{textblock}{5.6}(8,7) |
96 \begin{textblock}{5.6}(8,7) |
95 \begin{bubble}[5.6cm] |
97 \begin{bubble}[5.6cm] |
96 \it Should one mine for Bitcoins? |
98 \it Should one mine for Bitcoins? |
97 \end{bubble} |
99 \end{bubble} |
98 \end{textblock} |
100 \end{textblock} |
99 |
101 |
100 \begin{textblock}{2}(12,12.5) |
102 %\begin{textblock}{2}(12,12.5) |
101 \begin{bubble}[2cm] |
103 %\begin{bubble}[2cm] |
102 \it mined by GPUs |
104 %\it mined by GPUs |
103 \end{bubble} |
105 %\end{bubble} |
104 \end{textblock} |
106 %\end{textblock} |
105 |
107 |
106 \begin{textblock}{3.6}(10,2.3) |
108 \begin{textblock}{3}(11,2.3) |
107 \begin{bubble}[3.6cm] |
109 \begin{bubble}[3cm] |
108 \it can be lost or stolen |
110 \it bitcoins are anonymous |
109 \end{bubble} |
111 \end{bubble} |
110 \end{textblock} |
112 \end{textblock} |
111 |
113 |
112 \end{frame} |
114 \end{frame} |
113 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
115 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
245 \end{frame} |
247 \end{frame} |
246 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
248 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
247 |
249 |
248 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
250 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
249 \begin{frame}[t] |
251 \begin{frame}[t] |
250 \frametitle{Blockchain} |
252 \frametitle{Blockchain (Public Ledger)} |
251 |
253 |
252 The solution for double spend: |
254 The solution for double spend: |
253 |
255 |
254 \begin{itemize} |
256 \begin{itemize} |
255 \item make everybody the bank, everybody has the entire |
257 \item make everybody the bank, everybody has the entire |
266 \end{frame} |
268 \end{frame} |
267 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
269 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
268 |
270 |
269 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
271 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
270 \begin{frame}[t] |
272 \begin{frame}[t] |
271 \frametitle{Blockchain} |
273 \frametitle{Blockchain (Public Ledger)} |
272 |
274 |
273 \begin{center} |
275 \begin{center} |
274 \includegraphics[scale=0.5]{../pics/bitcoinblockchain0.png} |
276 \includegraphics[scale=0.5]{../pics/bitcoinblockchain0.png} |
275 \end{center} |
277 \end{center} |
276 |
278 |
404 \includegraphics[scale=0.37]{../pics/blockchainsolving.png} |
406 \includegraphics[scale=0.37]{../pics/blockchainsolving.png} |
405 \end{center} |
407 \end{center} |
406 |
408 |
407 \end{frame} |
409 \end{frame} |
408 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
410 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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411 |
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412 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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413 \begin{frame}[t] |
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414 \frametitle{How to Adjust the Target?} |
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415 |
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416 \begin{itemize} |
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417 \item every 2016 blocks the hardness is adjusted\\ (app 2 weeks) |
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418 \end{itemize} |
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419 |
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420 \begin{center} |
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421 \includegraphics[scale=0.37]{../pics/blockchainsolving.png} |
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422 \end{center} |
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423 |
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424 \small |
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425 \[ |
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426 \bl{\begin{array}{@{}l@{}}\text{New}\\ \text{Hardness}\end{array} \dn |
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427 \begin{array}{@{}l@{}}\text{Old}\\ \text{Hardness}\end{array} |
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428 * \frac{\text{Actual time for the last 2016 blocks}}{2016}} |
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429 \] |
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430 |
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431 \end{frame} |
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432 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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433 |
409 |
434 |
410 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
435 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
411 \begin{frame}[t] |
436 \begin{frame}[t] |
412 \frametitle{Bitcoin Schedule} |
437 \frametitle{Bitcoin Schedule} |
413 |
438 |
868 \end{frame} |
893 \end{frame} |
869 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
894 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
870 |
895 |
871 |
896 |
872 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
897 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
873 \begin{frame}[t] |
898 %\begin{frame}[t] |
874 \frametitle{Exam} |
899 %\frametitle{Exam} |
875 |
900 % |
876 |
901 % |
877 \begin{itemize} |
902 %\begin{itemize} |
878 \item Questions will be from homeworks. |
903 % \item Questions will be from homeworks. |
879 |
904 % |
880 \item Rubric: |
905 % \item Rubric: |
881 \begin{center}\small |
906 % \begin{center}\small |
882 \begin{tabular}{lp{7cm}} |
907 % \begin{tabular}{lp{7cm}} |
883 Time Allowed & Two hours\\ |
908 % Time Allowed & Two hours\\ |
884 Rubric & ANSWER ALL QUESTIONS\\ |
909 % Rubric & ANSWER ALL QUESTIONS\\ |
885 Calculators & Calculators are not permitted\\ |
910 % Calculators & Calculators are not permitted\\ |
886 Notes & Books, notes or other written material |
911 % Notes & Books, notes or other written material |
887 may not be brought into this examination\\ |
912 % may not be brought into this examination\\ |
888 \end{tabular} |
913 \end{tabular} |
889 \end{center} |
914 % \end{center} |
890 \end{itemize} |
915 %\end{itemize} |
891 |
916 % |
892 \end{frame} |
917 %\end{frame} |
893 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
918 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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919 |
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920 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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921 \begin{frame}[t] |
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922 %\frametitle{Take Home Points} |
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923 |
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924 \begin{center} |
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925 Next 2 weeks by Jose Such |
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926 \end{center} |
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927 |
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928 |
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929 \end{frame} |
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930 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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931 |
894 |
932 |
895 \end{document} |
933 \end{document} |
896 |
934 |
897 %%% Local Variables: |
935 %%% Local Variables: |
898 %%% mode: latex |
936 %%% mode: latex |