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<title>Roadmap — R3 Prototyping 0.1 documentation</title>
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0.1
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<li class="toctree-l1"><a class="reference internal" href="inthebox.html">What’s included?</a></li>
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<li class="toctree-l1"><a class="reference internal" href="overview.html">Overview</a></li>
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<li class="toctree-l1"><a class="reference internal" href="getting-set-up.html">Getting set up</a></li>
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<div class="section" id="roadmap">
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<h1>Roadmap<a class="headerlink" href="#roadmap" title="Permalink to this headline">¶</a></h1>
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<p>The canonical place to learn about pending tasks is the <a class="reference external" href="https://r3-cev.atlassian.net/">R3 JIRA</a> site. This
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page gives some examples of tasks that we wish to explore in future milestones as part of proving (or disproving)
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our core thesis</p>
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<p>Data distribution and management:</p>
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<ul class="simple">
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<li>Introduce a pluggable network messaging backend with a mock implementation for testing, and an Apache Kafka based
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implementation for bringing up first networking capability. Using Kafka as a message routing/storage layer is not
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necessarily the final approach or suitable for P2P WAN messaging, but it should be a good next step for prototyping
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and may even be a useful for internal deployments.</li>
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<li>Flesh out the core code enough to have a server that downloads and verifies transactions as they are uploaded to the
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cluster. At this stage all transactions are assumed to be public to the network (this will change later). Some basic
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logging/JMX/monitoring dashboard should be present to see what the node is doing.</li>
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<li>Experimentation with block-free conflict/double spend resolution using a voting pool of <em>observers</em> with lazy consensus.
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Logic for rolling back losing transaction subgraphs when a conflict is resolved, reporting these events to observer
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APIs and so on.</li>
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<li>Support a pluggable storage layer for recording seen transactions and their validity states.</li>
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</ul>
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<p>Contracts API:</p>
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<ul class="simple">
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<li>Upgrades to the composability of contracts: demonstrate how states can require the presence of other states as a way
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to mix in things like multi-signature requirements.</li>
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<li>Demonstrate how states can be separated into two parts, the minimum necessary for conflict resolution (e.g. owner keys)
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and a separated part that contains data useful for auditing and building confidence in the validity of a transaction
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(e.g. amounts).</li>
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<li>Explorations of improved time handling, and how best to express temporal logic in the contract API/DSL.</li>
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</ul>
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<p>JVM adaptations:</p>
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<ul class="simple">
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<li>Implement a sandbox and packaging system for contract logic. Contracts should be distributable through the network
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layer.</li>
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<li>Experiment with modifications to HotSpot to allow for safely killing threads (i.e. fixing the issues that make
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Thread.stop() unsafe to use), and to measure and enforce runtime limits to handle runaway code.</li>
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</ul>
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