\section{KYC/AML: Push Payment}

\begin{figure}[h!]
  \begin{center}
\begin{tikzpicture}[node distance=0.9cm,font=\sffamily,
    start/.style={rectangle, rounded corners, minimum width=3cm, minimum height=1cm,text centered, draw=black, fill=yellow!30},
    end/.style={rectangle, rounded corners, minimum width=3cm, minimum height=1cm,text centered, draw=black, fill=red!30},
    process/.style={rectangle, minimum width=3cm, minimum height=1cm, text centered, draw=black, fill=orange!30},
    failed/.style={rectangle, rounded corners, minimum width=3cm, minimum height=1cm, text centered, draw=black, fill=red!30},
    io/.style={trapezium, trapezium left angle=70, trapezium right angle=110, minimum width=3cm, minimum height=1cm, text centered, draw=black, fill=blue!30},
    decision/.style={diamond, minimum width=3cm, minimum height=1cm, text centered, draw=black, fill=green!30},
    arr/.style={very thick,-latex},
    every edge quotes/.style = {auto, font=\footnotesize, sloped}
    ]
 \node (start) [start] {Start};
 \node (wallet) [decision,below=of start,text width=2.5cm] {Wallet linked to (domestic) phone number?};
 \node (domestic) [process, right=of wallet] {Validate phone number};
 \node (amount) [decision, below=of wallet,text width=2.5cm] {Wallet received less than KYC threshold from other wallets?};
 \node (kyc) [process, right=of amount] {KYC process};
 \node (high) [decision, below=of amount,text width=2.5cm] {Wallet received more than its AML threshold?};
 \node (aml) [process, right=of high] {AML process};
 \node (dummy) [below right=of aml] {};
 \node (allow) [end, below right=of dummy] {Allow};
 \node (deny) [failed, right=of kyc] {Deny};
 \draw[arr] (start) -> (wallet) {};

 \draw[arr] (wallet) -> (amount);
 \draw (wallet) edge["Yes"] (amount);

 \draw[arr] (wallet.east) -> (domestic);
 \draw (wallet.east) edge["No"] (domestic);

 \draw[arr] (domestic) -> (amount);
 \draw (domestic) edge["Confirmed"] (amount);

 \draw[arr] (domestic) -> (deny);
 \draw (domestic) edge["Failed"] (deny);

 \draw[arr] (amount) -> (high);
 \draw (amount) edge["Yes"] (high);

 \draw[arr] (amount.east) -> (kyc);
 \draw (amount.east) edge["No"] (kyc);

 \draw[arr] (kyc) -> (deny);
 \draw (kyc) edge["Failed"] (deny);

 \draw[arr] (kyc) -> (high);
 \draw (kyc) edge["Succeeded"] (high);

 \draw[arr] (high.south) -> (allow);
 \draw (high.south) edge["Yes"] (allow);

 \draw[arr] (high.east) -> (aml);
 \draw (high.east) edge["No"] (aml);

 \draw[arr] (aml) -> (deny);
 \draw (aml) edge["Violation"] (deny);

 \draw[arr] (aml) -> (allow);
 \draw (aml) edge["Ok"] (allow);
\end{tikzpicture}
  \end{center}
  \caption{Regulatory process when receiving payments from another wallet.
    The threshold depends on the risk profile from the KYC process.
    When the transfer is denied the money is (eventually) returned to
    the originating wallet.}
\end{figure}


\begin{table}[h!]
  \caption{Settings for the push payment trigger}
  \begin{tabular}{l|l|r}
    {\bf Setting}             & {\bf Type}     & {\bf Value} \\ \hline \hline
    Permitted phone numbers   & Dialing prefix & {\em +41} \\
    P2P KYC threshold         & Amount         & {\em  100 CHF} \\
    Default P2P AML threshold & Amount         & {\em 1000 CHF} \\
  \end{tabular}
\end{table}