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<a href="index.html" class="icon icon-home"> R3 Corda
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API reference: <a href="api/kotlin/corda/index.html">Kotlin</a>/ <a href="api/javadoc/index.html">JavaDoc</a>
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<a href="https://discourse.corda.net">Discourse Forums</a>
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<li class="toctree-l1"><a class="reference internal" href="merkle-trees.html">Transaction tear-offs</a></li>
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<li class="toctree-l1"><a class="reference internal" href="node-services.html">Brief introduction to the node services</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#running-the-ui">Running the UI</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#running-demo-nodes">Running demo nodes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#interface">Interface</a></li>
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<li class="toctree-l1"><a class="reference internal" href="tutorial-clientrpc-api.html">Client RPC API tutorial</a></li>
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<li class="toctree-l1"><a class="reference internal" href="flow-state-machines.html">Writing flows</a></li>
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<li class="toctree-l1"><a class="reference internal" href="running-a-notary.html">Running a notary service</a></li>
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<li class="toctree-l1"><a class="reference internal" href="oracles.html">Writing oracle services</a></li>
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<li class="toctree-l1"><a class="reference internal" href="tutorial-attachments.html">Using attachments</a></li>
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<li class="toctree-l1"><a class="reference internal" href="event-scheduling.html">Event scheduling</a></li>
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<li class="toctree-l1"><a class="reference internal" href="network-simulator.html">Network Simulator</a></li>
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<li class="toctree-l1"><a class="reference internal" href="contract-irs.html">Interest rate swaps</a></li>
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<p class="caption"><span class="caption-text">Appendix</span></p>
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<li class="toctree-l1"><a class="reference internal" href="loadtesting.html">Load testing</a></li>
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<li class="toctree-l1"><a class="reference internal" href="setting-up-a-corda-network.html">What is a corda network?</a></li>
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<li class="toctree-l1"><a class="reference internal" href="secure-coding-guidelines.html">Secure coding guidelines</a></li>
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<li class="toctree-l1"><a class="reference internal" href="release-process.html">Release process</a></li>
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<li class="toctree-l1"><a class="reference internal" href="release-notes.html">Release notes</a></li>
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<li class="toctree-l1"><a class="reference internal" href="building-the-docs.html">Building the documentation</a></li>
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<li class="toctree-l1"><a class="reference internal" href="publishing-corda.html">Publishing Corda</a></li>
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<li class="toctree-l1"><a class="reference internal" href="azure-vm.html">Working with the Corda Demo on Azure Marketplace</a></li>
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<p class="caption"><span class="caption-text">Glossary</span></p>
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<div class="section" id="node-explorer">
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<h1>Node Explorer<a class="headerlink" href="#node-explorer" title="Permalink to this headline">¶</a></h1>
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<p>The node explorer provides views into a node’s vault and transaction data using Corda’s RPC framework.
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The user can execute cash transaction commands to issue and move cash to other parties on the network or exit cash (eg. remove from the ledger)</p>
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<div class="section" id="running-the-ui">
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<h2>Running the UI<a class="headerlink" href="#running-the-ui" title="Permalink to this headline">¶</a></h2>
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<p><strong>Windows</strong>:</p>
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<div class="highlight-kotlin"><div class="highlight"><pre><span></span><span class="n">gradlew</span><span class="p">.</span><span class="n">bat</span> <span class="n">tools</span><span class="p">:</span><span class="n">explorer</span><span class="p">:</span><span class="n">run</span>
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</pre></div>
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</div>
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<p><strong>Other</strong>:</p>
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<div class="highlight-kotlin"><div class="highlight"><pre><span></span><span class="p">./</span><span class="n">gradlew</span> <span class="n">tools</span><span class="p">:</span><span class="n">explorer</span><span class="p">:</span><span class="n">run</span>
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</pre></div>
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</div>
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</div>
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<div class="section" id="running-demo-nodes">
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<h2>Running demo nodes<a class="headerlink" href="#running-demo-nodes" title="Permalink to this headline">¶</a></h2>
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<p>A demonstration Corda network topology is configured with 5 nodes playing the following roles:</p>
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<ol class="arabic simple">
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<li>Notary</li>
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<li>Issuer nodes, representing two fictional central banks (UK Bank Plc issuer of GBP and USA Bank Corp issuer of USD)</li>
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<li>Participant nodes, representing two users (Alice and Bob)</li>
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</ol>
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<p>When connected to an <em>Issuer</em> node, a user can execute cash transaction commands to issue and move cash to itself or other
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parties on the network or to exit cash (for itself only).</p>
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<p>When connected to a <em>Participant</em> node a user can only execute cash transaction commands to move cash to other parties on the network.</p>
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<p>The Demo Nodes can be started in one of two modes:</p>
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<ol class="arabic">
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<li><p class="first">Normal</p>
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<p>Fresh clean environment empty of transactions.
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Firstly, launch an Explorer instance to login to one of the Issuer nodes and issue some cash to the other participants (Bob and Alice).
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Then launch another Explorer instance to login to a participant node and start making payments (eg. move cash).
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You will only be able to exit (eg. redeem from the ledger) cash as an issuer node.</p>
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</li>
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</ol>
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<p><strong>Windows</strong>:</p>
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<div class="highlight-kotlin"><div class="highlight"><pre><span></span><span class="n">gradlew</span><span class="p">.</span><span class="n">bat</span> <span class="n">tools</span><span class="p">:</span><span class="n">explorer</span><span class="p">:</span><span class="n">runDemoNodes</span>
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</pre></div>
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</div>
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<p><strong>Other</strong>:</p>
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<div class="highlight-kotlin"><div class="highlight"><pre><span></span><span class="p">./</span><span class="n">gradlew</span> <span class="n">tools</span><span class="p">:</span><span class="n">explorer</span><span class="p">:</span><span class="n">runDemoNodes</span>
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</pre></div>
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</div>
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<ol class="arabic" start="2">
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<li><p class="first">Simulation</p>
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<p>In this mode Nodes will automatically commence executing commands as part of a random generation process.
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Issuer nodes will randomly issue, move and exit cash.
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Participant nodes will randomly generate spends (eg. move cash to other nodes, including issuers)</p>
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</li>
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</ol>
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<p><strong>Windows</strong>:</p>
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<div class="highlight-kotlin"><div class="highlight"><pre><span></span><span class="n">gradlew</span><span class="p">.</span><span class="n">bat</span> <span class="n">tools</span><span class="p">:</span><span class="n">explorer</span><span class="p">:</span><span class="n">runSimulationNodes</span>
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</pre></div>
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</div>
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<p><strong>Other</strong>:</p>
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<div class="highlight-kotlin"><div class="highlight"><pre><span></span><span class="p">./</span><span class="n">gradlew</span> <span class="n">tools</span><span class="p">:</span><span class="n">explorer</span><span class="p">:</span><span class="n">runSimulationNodes</span>
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</pre></div>
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</div>
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<div class="admonition note">
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<p class="first admonition-title">Note</p>
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<p>5 Corda nodes will be created on the following port on localhost by default.</p>
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<ul class="last simple">
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<li>Notary -> 20002</li>
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<li>Alice -> 20004</li>
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<li>Bob -> 20006</li>
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<li>UK Bank Plc -> 20008 (<em>Issuer node</em>)</li>
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<li>USA Bank Corp -> 20010 (<em>Issuer node</em>)</li>
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</ul>
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</div>
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<p>Explorer login credentials to the Issuer nodes are defaulted to <code class="docutils literal"><span class="pre">manager</span></code> and <code class="docutils literal"><span class="pre">test</span></code>.
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Explorer login credentials to the Participants nodes are defaulted to <code class="docutils literal"><span class="pre">user1</span></code> and <code class="docutils literal"><span class="pre">test</span></code>.
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Please note you are not allowed to connect to the notary.</p>
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<div class="admonition note">
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<p class="first admonition-title">Note</p>
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<p class="last">Alternatively, you may start the demo nodes from within IntelliJ using either of the run configurations
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<code class="docutils literal"><span class="pre">Explorer</span> <span class="pre">-</span> <span class="pre">demo</span> <span class="pre">nodes</span></code> or <code class="docutils literal"><span class="pre">Explorer</span> <span class="pre">-</span> <span class="pre">demo</span> <span class="pre">nodes</span> <span class="pre">(simulation)</span></code></p>
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</div>
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<div class="admonition note">
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<p class="first admonition-title">Note</p>
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<p class="last">Use the Explorer in conjunction with the Trader Demo and Bank of Corda samples to use other <em>Issuer</em> nodes.</p>
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</div>
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</div>
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<div class="section" id="interface">
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<h2>Interface<a class="headerlink" href="#interface" title="Permalink to this headline">¶</a></h2>
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<dl class="docutils">
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<dt>Login</dt>
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<dd>User can login to any Corda node using the explorer. Alternatively, <code class="docutils literal"><span class="pre">gradlew</span> <span class="pre">explorer:runDemoNodes</span></code> can be used to start up demo nodes for testing.
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Corda node address, username and password are required for login, the address is defaulted to localhost:0 if leave blank.
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Username and password can be configured via the <code class="docutils literal"><span class="pre">rpcUsers</span></code> field in node’s configuration file.</dd>
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</dl>
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<a class="reference internal image-reference" href="_images/login.png"><img alt="_images/login.png" class="align-center" src="_images/login.png" style="width: 520.0px; height: 599.0px;" /></a>
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<dl class="docutils">
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<dt>Dashboard</dt>
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<dd>The dashboard shows the top level state of node and vault.
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Currently, it shows your cash balance and the numbers of transaction executed.
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The dashboard is intended to house widgets from different CordApps and provide useful information to system admin at a glance.</dd>
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</dl>
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<img alt="_images/dashboard.png" src="_images/dashboard.png" />
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<dl class="docutils">
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<dt>Cash</dt>
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<dd>The cash view shows all currencies you currently own in a tree table format, it is grouped by issuer -> currency.
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Individual cash transactions can be viewed by clicking on the table row. The user can also use the search field to narrow down the scope.</dd>
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</dl>
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<img alt="_images/vault.png" src="_images/vault.png" />
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<dl class="docutils">
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<dt>New Transactions</dt>
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<dd><p class="first">This is where you can create new cash transactions.
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The user can choose from three transaction types (issue, pay and exit) and any party visible on the network.</p>
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<p class="last">General nodes can only execute pay commands to any other party on the network.</p>
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</dd>
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</dl>
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<img alt="_images/newTransactionCash.png" src="_images/newTransactionCash.png" />
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<dl class="docutils">
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<dt>Issuer Nodes</dt>
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<dd>Issuer nodes can execute issue (to itself or to any other party), pay and exit transactions.
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The result of the transaction will be visible in the transaction screen when executed.</dd>
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</dl>
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<img alt="_images/newTransactionIssuer.png" src="_images/newTransactionIssuer.png" />
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<dl class="docutils">
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<dt>Transactions</dt>
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<dd>The transaction view contains all transactions handled by the node in a table view. It shows basic information on the table e.g. Transaction ID,
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command type, USD equivalence value etc. User can expand the row by double clicking to view the inputs,
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outputs and the signatures details for that transaction.</dd>
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</dl>
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<img alt="_images/transactionView.png" src="_images/transactionView.png" />
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<dl class="docutils">
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<dt>Network</dt>
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<dd>The network view shows the network information on the world map. Currently only the user’s node is rendered on the map.
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This will be extended to other peers in a future release.
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The map provides an intuitive way of visualizing the Corda network and the participants.</dd>
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</dl>
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<img alt="_images/network.png" src="_images/network.png" />
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<dl class="docutils">
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<dt>Settings</dt>
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<dd>User can configure the client preference in this view.</dd>
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</dl>
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<div class="admonition note">
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