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comparison2025.tex (4479B)

      1 \documentclass[c]{beamer}
      2 
      3 %\usepackage{helvet}
      4 \usepackage{calc}
      5 \usepackage[utf8]{inputenc} % set your input encoding differently, if you want
      6 \usepackage[english]{babel}
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      8 \usepackage{booktabs}
      9 \usepackage{makecell}
     10 \usepackage{enumitem}
     11 \usepackage{eurosym}
     12 \usepackage{tikz}
     13 \usepackage{pgfgantt}
     14 \usepackage{amsmath,amssymb}
     15 \usetikzlibrary{shapes,arrows}
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     20 \usepackage{arydshln}
     21 \newcommand*\dhline{\specialrule{0pt}{1pt}{0pt}\hdashline[.4pt/3pt]\specialrule{0pt}{0pt}{1pt}}
     22 \usepackage{pifont}
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     30 \setlist[itemize]{label=$\bullet$}
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     33 \def\checkmark{\tikz\fill[scale=0.4](0,.35) -- (.25,0) -- (1,.7) -- (.25,.15) -- cycle;}
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     35 \setbeamercovered{transparent=10}
     36  \setbeamertemplate{navigation symbols}{GNU Taler Comparisons --- \today --- Page \insertpagenumber}
     37 \setbeamertemplate{section in toc}[sections numbered]
     38 
     39 % Adapt title information
     40 % =======================
     41 \title{GNU Taler \\ {\small {\bf T}axable {\bf A}nonymous {\bf L}ibre {\bf E}lectronic {\bf R}esources}}
     42 \institute{Taler Systems SA}
     43 \author{Christian Grothoff}
     44 \date{\today}
     45 
     46 % Some common packages
     47 % ====================
     48 \usepackage{units}
     49 \usepackage{amsbsy}
     50 \usepackage{amsmath}
     51 \usepackage{amssymb}
     52 \usepackage{graphics}
     53 \usepackage{epsf}
     54 \usepackage{epsfig}
     55 
     56 
     57 \begin{document}
     58 
     59 \begin{frame}{GNU Taler as rCBDC: Comparison}
     60   \begin{center} \small
     61     \begin{tabular}{l||c|c|c}
     62     {\bf best}, {\em worst}      & Cash      & prov. DLT        &  GNU Taler               \\ \hline \hline
     63     Works for e-commerce         & {\em \n}  &   \y             &   {\bf \y}               \\ \hline
     64     Secure for offline merchants & {\bf \y}  & {\em \n}         &     \y                   \\ \hline
     65     Payer convenience            & counting  & {\em 2-FA}       & {\bf one-click}          \\ \hline \hline
     66     Payer privacy                & {\bf \y}  & {\em \n}         & {\bf \y}                 \\ \hline
     67     Income transparency          & {\em \n}  & {\bf \y}         &   \y                     \\ \hline
     68     Self-custody (no shackles)   & {\bf \y}  &   \n             &   \y                     \\ \hline
     69     Open banking (FLOSS)         & N/A       & {\em open}       & {\bf libre}              \\ \hline \hline
     70     Computation cost             & {\bf none}& {\em low}        &  low                     \\ \hline
     71     Storage cost                 & {\bf none}& {\em eternal}    &  years$^\dagger$          \\ \hline
     72     Transaction rate             & $\infty$  & {\em $\le$ 3000} &  $\ge$ 50,000            \\ \hline
     73     Transaction latency          & counting  &  consensus       & {\bf network latency}    \\ \hline
     74     Integration cost             & none      &  {\em ??}        & {\bf 10 lines of code}   \\
     75     \end{tabular}
     76     \vfill
     77     {$\dagger$: typical storage duration configured based on regulatory requirements}
     78   \end{center}
     79 \end{frame}
     80 
     81 
     82 \begin{frame}{GNU Taler as rCBDC: Platforms}
     83   \begin{center} \small
     84 	\begin{tabular}{l c c c c|c c}
     85 	& \multicolumn{4}{c}{Digital Payment System} & \multicolumn{2}{c}{Digital Euro} \\
     86 	\cmidrule(lr){2-5}
     87 	\cmidrule(lr){5-7}
     88  	 	& Credit Card  & PayPal & Bitcoin & GNU Taler & Online  & Offline \\ \midrule
     89 	Android     & \y   & \y     & \y   & \y    & \y  & \y   \\ \dhline
     90 	iOS         & \y   & \y     & \y   & \y    & \y  & \y   \\ \dhline
     91 	Browser     & \y   & \y     & \y   & \y    & \n  & \n   \\ \dhline
     92 	Smartcard   & \y   & \n     & \y   & \n$^\dagger$  & \n  & \y   \\ \dhline
     93 	Terminal    & \n   & \n     & \y   & \y    & \n  & \n   \\
     94 	\bottomrule
     95 	\end{tabular}
     96   {\footnotesize $\dagger$ Work-in-progress.}
     97   \end{center}
     98 \end{frame}
     99 
    100 
    101 \begin{frame}{Distribution models}
    102   \begin{center} \small
    103 \begin{tabular}{l c c c c}
    104 \toprule
    105 & \multicolumn{4}{c}{Distribution model} \\
    106 \cmidrule(lr){2-5}
    107 User Right           & Proprietary & Source-available & Open-core & Libre \\ \midrule
    108 Execute              & \y    & \y      & \y    & \y    \\ \dhline
    109 Analyze/integrate    & \n    & (\y)    & \y    & \y    \\ \dhline
    110 Modify/improve       & \n    & \n      & (\y)  & \y    \\ \dhline
    111 Fully self-determine$^\dagger$ & \n    & \n      & \n    & \y    \\
    112 \bottomrule
    113 \end{tabular}
    114   \end{center}
    115   {\footnotesize $\dagger$ Informational self-determination requires control over the software you use.}
    116 \end{frame}
    117 
    118 
    119 \end{document}