pow.tex

\pgfplotsset{
	scatter/use mapped color={draw=black, fill=mapped color!50},
}

\begin{figure}[h!]
	\begin{center}
		\begin{tikzpicture}
		\begin{axis}[
			width=0.8\linewidth, % Scale the plot to \linewidth
			height=0.4\linewidth,
			grid=major, % Display a grid
			grid style={dashed,gray!30}, % Set the style
			xlabel=Difficulty,
			ylabel=Number of search iterations,
			xmin=0, xmax=100000, xtick={0},
			ymin=0, ymax=6000, ytick=0,
			axis lines=left,
			scaled ticks=false,
		]
		\addplot[scatter,
		only marks,]
		table[x=column 1,y=column 2,col sep=comma] {step-pow.csv}; 
		\end{axis}
		\end{tikzpicture}
		\caption{Step (exponential) proof-of-work}
		\label{fig:steppow}
	\end{center}
\end{figure}

\begin{figure}[h!]
	\begin{center}
		\begin{tikzpicture}
		\begin{axis}[
		width=0.8\linewidth, % Scale the plot to \linewidth
		height=0.4\linewidth,
		grid=major, % Display a grid
		grid style={dashed,gray!30}, % Set the style
		xlabel=Difficulty,
		ylabel=Number of search iterations,
		xmin=0, xmax=10000, xtick={0},
		ymin=0, ymax=25000, ytick=0,
		axis lines=left,
		scaled ticks=false,
		]
		\addplot[scatter,
		only marks,]
		table[x=column 1,y=column 2,col sep=comma] {lin-pow3.csv}; 
		\end{axis}
		\end{tikzpicture}
		\caption{Linear proof-of-work}
		\label{fig:linpow}
	\end{center}
\end{figure}