talk slides sources added

contents/introduction.rst

@@ -214,15 +214,18 @@ You can also find the (first 2) ethersphere orange papers there.
 
 Public gateways are:
 
-* http://swarm-gateways.net/
-* http://web3.download/
+* http://swarm-gateways.net
+* http://web3.download,
 * http://ethereum-swarm.net/
+* http://localhost:8500/bzzr:/some/path
 
-Swarm testnet monitor: http://stats.ens.domains/
+Drain():
+  Swarm testnet monitor: http://stats.ens.domains/
 
+Source:
+  Source code is at https://github.com/ethereum/go-ethereum/
 
-Source code is at https://github.com/ethereum/go-ethereum/
-
-Example dapps are at https://github.com/ethereum/swarm-dapps
+Dapps:
+  Example dapps are at https://github.com/ethereum/swarm-dapps
 
 

slides/ams-btc-09-2016/devcon-cdn.tex

@@ -0,0 +1,243 @@
+
+\subsection{Data Retrieval}
+\blockslide{\textbf{Data out}}{How to retrieve data stored in the swarm.}
+
+
+\begin{frame}{Data Retrieval}
+\begin{columns}[T]
+\begin{column}{0.4\textwidth}
+\small
+\alt<1-3>{}{\tiny}{
+Everything on the swarm network has an \textbf<1-3>{id}, every chunk of data, every node (even you!). The \textbf<1-3>{id} also functions as an \textbf<1-3>{address}.\\[5mm]
+}
+\uncover<4->{\alt<4-5>{\small}{\tiny}
+When your swarm-enabled dapp wishes to retrieve ``awesome-swarm-slides.pdf'',}
+\uncover<5->{\alt<5>{}{\tiny}{it will attempt to retrieve it via its id ``\textbf{H}''.\\[5mm]
+}}
+\uncover<6->{\alt<6>{\small}{\tiny}
+{
+In swarm, the content with address ``\textbf{H}'' is stored with the node whose own address is \emph{closest} to \textbf{H}.\\[5mm]
+}}
+\uncover<7->{\alt<7>{\small}{\tiny}
+{
+Swarm's \textbf<7>{Retrieval Process} is responsible for deliviering the data to you.
+}}
+\end{column}
+
+\begin{column}{0.6\textwidth} 
+\begin{tikzpicture}
+ \node[scale=0.7]{
+    \begin{tikzpicture}
+      \node[visible on=<2->] at (2,2) {\textbf{The Swarm Network:}};
+
+      \node[node,visible on=<2->] at (0,0) {};
+      \node[node,visible on=<2->] at (1,-0.9) {};
+      \node[node,visible on=<2->] at (0.5,-3) {};
+      \node[node,visible on=<2->] at (0,-6.3) {};
+      \node[node,visible on=<2->] at (5.8,-1.2) {};
+      \node[node,visible on=<2->] at (4,-5.9) {};
+      \node[node,visible on=<2->] at (4.1,-3) {};
+      \node[node,visible on=<2->] at (2.1,-2) {};
+
+      \node[node,visible on=<2>] at (4,0) (younode) {swarm-node};
+      \node[peer,visible on=<3->] at (4,0) (you) {You};
+
+      \node[visible on=<5->] (chunk) at (1,-5) {$\bullet$};
+      \node[visible on=<5->] (chunklabel) at (2,-4.5) {H} edge[point,->,visible on =<5->] (chunk);
+
+      \node[visible on=<2-6>, node] at (-0.5,-4.2) (close) {};
+      \node[visible on=<7->, peer] at (-0.5,-4.2) (closestnode) {Closest Node};
+      \node[visible on=<7->] at (-0.5, -5.5) (hlabel) {Look for ``H'' here} 
+	  edge[visible on=<7->,point,->] (closestnode);
+    \end{tikzpicture}
+    };
+\end{tikzpicture}
+\end{column}
+\end{columns}
+
+\end{frame}
+
+
+
+
+
+
+\begin{frame}{Swarm Retrieval Process}
+
+\begin{tikzpicture}
+\node[peer,visible on=<1->] at (12,0) (retriever){Retriever};
+\node[visible on=<13>,scale=2] at (12,-1.5) {\Smiley};
+
+\node[visible on=<2->] (chunk) at (4,-5) {$\bullet$};
+\node[visible on=<2->] (chunklabel) at (3,-4) {data address} edge[point,->,visible on =<2->] (chunk);
+
+\node[peer,visible on=<4-12>, dimmed on=<13->] at (8.5,-0.5) (connectedpeer){peer}
+    (retriever.-150) edge[point, ->,visible on=<5>,dimmed on=<6-12>,  bend left=15] 
+	    node[below=2pt,visible on=<5>, dimmed on=<6-12>] {request}
+		    (connectedpeer.-10);
+
+\node[node,visible on=<6-11>, dimmed on=<12->] at (6,-2) (firstnode){some node}
+	(connectedpeer.-70) edge[point,->,visible on=<6>, dimmed on=<7-11>,bend left=30] 
+	    node[right of=2pt,visible on=<6>, dimmed on=<7-11>] {request} 
+		    (firstnode.east);
+
+\node[node,visible on=<7-10>, dimmed on=<11->] at (7.5,-4.5) (secondnode){other node}
+	(firstnode.-70) edge[point,->,dashed,visible on=<7>, dimmed on=<8-10>,bend left=10] 
+	    node[right of=2pt,visible on=<7>, dimmed on=<8-10>] {requests...} 
+		    (secondnode.120);
+
+\node[peer,visible on=<3-9>, dimmed on=<10->] at (4,-6) (closestnode){closest node}
+	(secondnode.-110) edge[point,->,visible on=<8>, dimmed on=<9>,out=-110,in=0]
+	    node[right of=2pt,visible on=<8>, dimmed on=<9>] {request}
+		    (closestnode.east)
+	(closestnode) edge[thick,point,->,visible on=<9>] node[above=2pt,visible on=<9>]{deliver} (secondnode)
+	(secondnode.north west) edge[thick, point,->,visible on=<10>, dashed] node[left of=2pt,visible on=<10>]{deliveries} (firstnode.-120)
+	(firstnode.55) edge[thick,point,->,visible on=<11>] node[left of=2pt,visible on=<11>]{deliver} (connectedpeer.-150)
+	(connectedpeer) edge[thick,point,->,visible on=<12>] node[above=2pt,visible on=<12>]{deliver} (retriever)
+	;
+
+\node[chunk, scale=0.6,visible on=<3->, below=3pt of closestnode.-50] {}; 
+\node[chunk, scale=0.6,visible on=<9->, below=3pt of secondnode.-50] {}; 
+\node[chunk, scale=0.6,visible on=<10->, below=3pt of firstnode.-50] {}; 
+\node[chunk, scale=0.6,visible on=<11->, below=3pt of connectedpeer.-50] {}; 
+\node[chunk, scale=0.6,visible on=<12->, below=3pt of retriever.-50] {}; 
+\end{tikzpicture}
+\end{frame}
+
+
+
+
+\subsection[SWAP]{Paying for data}
+\wholeslide{SWAP: \textbf{Sw}arm \textbf{A}ccounting \textbf{P}rotocol}
+
+\begin{frame}{SWAP: Swarm Accounting Protocol}
+\begin{columns}[T]
+\begin{column}{0.5\textwidth}
+\small
+The \textbf{Swarm Accounting Protocol} keeps track of all data retrieved via the swarm retrieval process. It is used to facilitate automated payments between peers for the bandwidth they provide.\\
+\uncover<2->{Note: Bandwidth accounting \alt<2>{\alert{has to be}}{is} per-peer.\\[5mm]}
+
+\uncover<9->{When the peer connection becomes too imbalanced, a \emph{payment} is initiated.}
+\end{column}
+
+\begin{column}{0.5\textwidth}
+ \begin{center}
+  \begin{tikzpicture}
+   \node[peer,visible on=<3->] at (-2,0) (node1) {Me};
+   \node[peer,visible on=<4->] at (2,0) (node2) {Peer}
+   (node1.50) edge[point,->,dashed,visible on=<5->,bend right=30,out=50,in=130] node[below=10pt,visible on=<7->,scale=0.8] (sup){data delivered} (node2.130)
+   (node2.-130) edge[point,->,dashed,visible on=<6->,bend left=30,in=130,out=50] node[above=10pt,visible on=<9->,scale=0.8]{data received} (node1.-50)
+   ;
+   \node[visible on=<8->,below= 2mm of sup]{\Large{-}};
+  \end{tikzpicture}
+ \end{center}
+\end{column}
+
+\end{columns} 
+\end{frame}
+
+\begin{frame}{The chequebook and the channel}
+ \begin{itemize}
+  \item It is \emph{impossible} to pay for every chunk of data delivered.
+  \item<2-> Even batch payments would constitute unacceptable blockchain bloat (and transaction cost).
+ \end{itemize}
+ \uncover<3->{Instead of processing every payment on-chain, SWAP employs a \emph{chequebook} smart contract:}
+  \begin{itemize}
+  \item<4-> Cheques are passed between connected swarm nodes (peers) off-chain.
+  \item<4-> Peers can cash in (process on-chain) the received cheques at any time. 
+  \item<4-> Issued cheques are \emph{cumulative} and \textbf{only the last cheque has to be cashed}.
+ \end{itemize}
+ \uncover<5>{SWAP will soon also be usable via \emph{payment channels} (Raiden).}
+\end{frame}
+
+\begin{frame}{The chequebook and the channel}
+\begin{overlayarea}{\textwidth}{5.2cm}
+\setbeamercovered{transparent}% Dim out "inactive" elements
+\begin{columns}[t]
+  \column{0.5\textwidth}
+    \begin{block}{Chequebook}
+      \textbf{Pro:}
+      \begin{enumerate}
+       \item<1>{Offchain payments}
+       \item<2>{Low barrier to entry (pay anyone)}
+      \end{enumerate}
+      \textbf{Con:}
+      \begin{enumerate}
+       \item<3>{Cheques can bounce (payment not guaranteed)}
+      \end{enumerate}
+    \end{block}
+  \column{0.5\textwidth}
+    \begin{block}{Channel}
+      \textbf{Pro:}
+      \begin{enumerate}
+       \item<1>{Offchain payments}
+       \item<3>{Secure - payments guaranteed}
+      \end{enumerate}
+      \textbf{Con:}
+      \begin{enumerate}
+       \item<2>{High barrier to entry (must first join channel network)}
+      \end{enumerate}     
+    \end{block}
+\end{columns}
+\end{overlayarea}
+\uncover<4>{
+Regardless of \emph{how} payments are processed, SWAP demonstrates how a swarm can have \textbf{programmable incentives}. In particular, a network of profit-maximising nodes using SWAP results in an automatically scaling content delivery network.  
+}
+\end{frame}
+
+
+\begin{frame}{Swarm CDN is auto-scaling}
+\begin{tikzpicture}
+\node[peer,visible on=<1->] at (12,0) (retriever){};
+
+\node[visible on=<1->] (chunk) at (4,-5) {$\bullet$};
+\node[visible on=<1->] (chunklabel) at (3,-4) {data address} edge[point,->,visible on =<1->] (chunk);
+
+\node[node,visible on=<2->,] at (8.5,-0.5) (connectedpeer){}
+    (retriever.-150) edge[point, ->,visible on=<4-8>,  bend left=15] 
+	    node[below=2pt,visible on=<4>] {request}
+		    (connectedpeer.-10);
+
+\node[node,visible on=<2->] at (6,-2) (firstnode){}
+	(connectedpeer.-70) edge[point,->,visible on=<4-7>,bend left=30] 
+	    node[right of=2pt,visible on=<4>] {request} 
+		    (firstnode.east);
+
+\node[node,visible on=<2->] at (7.5,-4.5) (secondnode){}
+	(firstnode.-70) edge[point,->,dashed,visible on=<4-6>,bend left=10] 
+	    node[right of=2pt,visible on=<4>] {requests...} 
+		    (secondnode.120);
+
+\node[peer,visible on=<2->] at (4,-6) (closestnode){}
+	(secondnode.-110) edge[point,->,visible on=<4-5>,out=-110,in=0]
+	    node[right of=2pt,visible on=<4>] {request}
+		    (closestnode.east)
+	(closestnode) edge[thick,point,->,visible on=<5>] (secondnode)
+	(secondnode.north west) edge[thick, point,->,visible on=<6>, dashed] (firstnode.-120)
+	(firstnode.55) edge[thick,point,->,visible on=<7>] (connectedpeer.-150)
+	(connectedpeer) edge[thick,point,->,visible on=<8>] (retriever)
+	;
+
+\node[chunk, scale=0.6,visible on=<3->, below=3pt of closestnode.-50] {}; 
+\node[chunk, scale=0.6,visible on=<5->, below=3pt of secondnode.-50] {}; 
+\node[chunk, scale=0.6,visible on=<6-9>, below=3pt of firstnode.-50] {}; 
+\node[chunk, scale=0.6,visible on=<7-9>, below=3pt of connectedpeer.-50] {}; 
+\node[chunk, scale=0.6,visible on=<8->, below=3pt of retriever.-50] {}; 
+
+
+\node[peer, visible on=<11->] at (12,-6) (newguy){};
+\node[node, visible on=<11->] at (11,-4) (newnode){}
+    (newguy) edge[point,->,visible on=<12-15>,dashed,bend left=20] (newnode)
+    (newnode) edge[point,->,visible on=<13-14>,bend left=20] (secondnode)
+    ;
+
+\node[chunk, scale=0.6,visible on=<14->, below=3pt of newnode.-50] {}
+    (secondnode) edge[thick,point,->,visible on=<14>] (newnode);
+\node[chunk, scale=0.6,visible on=<15->, below=3pt of newguy.-50] {}
+    (newnode) edge[thick,point,->,visible on=<15>] (newguy);
+
+\node[visible on=<16>,scale=4] at (3,-1) {\Smiley};
+
+\end{tikzpicture}
+\end{frame}
+