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<html><head><title>2023-09-15 Codex weekly</title><meta charSet="utf-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta property="og:title" content="2023-09-15 Codex weekly"/><meta property="og:description" content="Client § Milestone: Block Merkelization § Continuing work on merkelization Storing and retrieving data using merkle trees Coders for merkle trees Refine merkle tree construction Milestone: Block Exchange protocol refinements and simulations § Tracker simulation implementation Block exchange protocol thoughts https://rpubs."/><meta property="og:image" content="https://roadmap.logos.co/static/og-image.png"/><meta property="og:width" content="1200"/><meta property="og:height" content="675"/><link rel="icon" href="../../static/icon.png"/><meta name="description" content="Client § Milestone: Block Merkelization § Continuing work on merkelization Storing and retrieving data using merkle trees Coders for merkle trees Refine merkle tree construction Milestone: Block Exchange protocol refinements and simulations § Tracker simulation implementation Block exchange protocol thoughts https://rpubs."/><meta name="generator" content="Logos Roadmaps"/><link rel="preconnect" href="https://fonts.googleapis.com"/><link rel="preconnect" href="https://fonts.gstatic.com"/><link href="../../index.css" rel="stylesheet" type="text/css" spa-preserve/><link href="https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.css" rel="stylesheet" type="text/css" spa-preserve/><link href="https://fonts.googleapis.com/css2?family=IBM Plex Mono&amp;family=sans-serif:wght@400;700&amp;family=sans-serif:ital,wght@0,400;0,600;1,400;1,600&amp;display=swap" rel="stylesheet" type="text/css" spa-preserve/><script src="../../prescript.js" type="application/javascript" spa-preserve></script><script type="application/javascript" spa-preserve>const fetchData = fetch(`../../static/contentIndex.json`).then(data => data.json())</script></head><body data-slug="codex/updates/2023-09-15"><div id="quartz-root" class="page"><div id="quartz-body"><div class="left sidebar"><h1 class="page-title"><a href="../..">Logos Collective Project Roadmaps</a></h1><div class="spacer mobile-only"></div><div class="search"><div id="search-icon"><p>Search</p><div></div><svg tabIndex="0" aria-labelledby="title desc" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 19.9 19.7"><title id="title">Search</title><desc id="desc">Search</desc><g class="search-path" fill="none"><path stroke-linecap="square" d="M18.5 18.3l-5.4-5.4"></path><circle cx="8" cy="8" r="7"></circle></g></svg></div><div id="search-container"><div id="search-space"><input autocomplete="off" id="search-bar" name="search" type="text" aria-label="Search for something" placeholder="Search for something"/><div id="results-container"></div></div></div></div><div class="darkmode"><input class="toggle" id="darkmode-toggle" type="checkbox" tabIndex="-1"/><label id="toggle-label-light" for="darkmode-toggle" tabIndex="-1"><svg xmlns="http://www.w3.org/2000/svg" xmlnsXlink="http://www.w3.org/1999/xlink" version="1.1" id="dayIcon" x="0px" y="0px" viewBox="0 0 35 35" style="enable-background:new 0 0 35 35;" xmlSpace="preserve"><title>Light mode</title><path d="M6,17.5C6,16.672,5.328,16,4.5,16h-3C0.672,16,0,16.672,0,17.5 S0.672,19,1.5,19h3C5.328,19,6,18.328,6,17.5z M7.5,26c-0.414,0-0.789,0.168-1.061,0.439l-2,2C4.168,28.711,4,29.086,4,29.5 C4,30.328,4.671,31,5.5,31c0.414,0,0.789-0.168,1.06-0.44l2-2C8.832,28.289,9,27.914,9,27.5C9,26.672,8.329,26,7.5,26z M17.5,6 C18.329,6,19,5.328,19,4.5v-3C19,0.672,18.329,0,17.5,0S16,0.672,16,1.5v3C16,5.328,16.671,6,17.5,6z M27.5,9 c0.414,0,0.789-0.168,1.06-0.439l2-2C30.832,6.289,31,5.914,31,5.5C31,4.672,30.329,4,29.5,4c-0.414,0-0.789,0.168-1.061,0.44 l-2,2C26.168,6.711,26,7.086,26,7.5C26,8.328,26.671,9,27.5,9z M6.439,8.561C6.711,8.832,7.086,9,7.5,9C8.328,9,9,8.328,9,7.5 c0-0.414-0.168-0.789-0.439-1.061l-2-2C6.289,4.168,5.914,4,5.5,4C4.672,4,4,4.672,4,5.5c0,0.414,0.168,0.789,0.439,1.06 L6.439,8.561z M33.5,16h-3c-0.828,0-1.5,0.672-1.5
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<h3 id="milestone-block-merkelization">Milestone: Block Merkelization<a aria-hidden="true" tabindex="-1" href="#milestone-block-merkelization" class="internal"> §</a></h3>
<ul>
<li>Continuing work on merkelization
<ul>
<li><a href="https://github.com/codex-storage/nim-codex/pull/541" class="external">Storing and retrieving data using merkle trees</a></li>
<li><a href="https://github.com/codex-storage/nim-codex/pull/519" class="external">Coders for merkle trees</a></li>
<li><a href="https://github.com/codex-storage/nim-codex/pull/516" class="external">Refine merkle tree construction</a></li>
</ul>
</li>
</ul>
<h3 id="milestone-block-exchange-protocol-refinements-and-simulations">Milestone: Block Exchange protocol refinements and simulations<a aria-hidden="true" tabindex="-1" href="#milestone-block-exchange-protocol-refinements-and-simulations" class="internal"> §</a></h3>
<ul>
<li>Tracker simulation implementation</li>
<li>Block exchange protocol thoughts
<ul>
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<li><a href="https://rpubs.com/giuliano_mega/1067876" class="external">https://rpubs.com/giuliano_mega/1067876</a></li>
<li><a href="https://rpubs.com/giuliano_mega/1082104" class="external">https://rpubs.com/giuliano_mega/1082104</a></li>
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</ul>
</li>
<li>Follow <a href="https://github.com/codex-storage/swarmsim" class="external">swarmsim repo</a> for updates</li>
</ul>
<h3 id="milestone-async-disc-access--threading-support">Milestone: Async Disc Access &amp; Threading support<a aria-hidden="true" tabindex="-1" href="#milestone-async-disc-access--threading-support" class="internal"> §</a></h3>
<ul>
<li>Work on IO threads support
<ul>
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<li><a href="https://github.com/codex-storage/nim-datastore/pulls" class="external">https://github.com/codex-storage/nim-datastore/pulls</a></li>
<li>Some early integration here - <a href="https://github.com/codex-storage/nim-codex/pull/552" class="external">https://github.com/codex-storage/nim-codex/pull/552</a>
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<ul>
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<li>Based mostly on <a href="https://github.com/codex-storage/nim-codex/pull/545" class="external">https://github.com/codex-storage/nim-codex/pull/545</a> and prev work by @elcritch</li>
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</ul>
</li>
</ul>
</li>
</ul>
<h3 id="milestone-client-stability-and-debugging">Milestone: Client stability and debugging<a aria-hidden="true" tabindex="-1" href="#milestone-client-stability-and-debugging" class="internal"> §</a></h3>
<ul>
<li>Major effort to stabilize the Codex client through continuous automated testing</li>
</ul>
<h2 id="infra">Infra<a aria-hidden="true" tabindex="-1" href="#infra" class="internal"> §</a></h2>
<h3 id="milestone-monitoring-and-metrics">Milestone: Monitoring and Metrics<a aria-hidden="true" tabindex="-1" href="#milestone-monitoring-and-metrics" class="internal"> §</a></h3>
<ul>
<li>Install Node exporter and Prometheus in Dist-Tests cluster</li>
<li>Grafana Dashboard updates - waiting for public DNS to be setup</li>
<li>Automated metrics scraping - waiting for public DNS to be setup</li>
</ul>
<h2 id="marketplace">Marketplace<a aria-hidden="true" tabindex="-1" href="#marketplace" class="internal"> §</a></h2>
<h3 id="milestone-availabilities-and-reservations">Milestone: Availabilities and Reservations<a aria-hidden="true" tabindex="-1" href="#milestone-availabilities-and-reservations" class="internal"> §</a></h3>
<ul>
<li>Work ongoing in
<ul>
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<li><a href="https://github.com/codex-storage/nim-ethers" class="external">https://github.com/codex-storage/nim-ethers</a></li>
<li><a href="https://github.com/codex-storage/codex-contracts-eth" class="external">https://github.com/codex-storage/codex-contracts-eth</a></li>
<li><a href="https://github.com/codex-storage/nim-codex" class="external">https://github.com/codex-storage/nim-codex</a></li>
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</ul>
</li>
<li>Some recent PRs
<ul>
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<li><a href="https://github.com/codex-storage/nim-ethers/pull/54" class="external">https://github.com/codex-storage/nim-ethers/pull/54</a></li>
<li><a href="https://github.com/codex-storage/nim-codex/pull/535" class="external">https://github.com/codex-storage/nim-codex/pull/535</a></li>
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</ul>
</li>
</ul>
<h2 id="research">Research<a aria-hidden="true" tabindex="-1" href="#research" class="internal"> §</a></h2>
<h3 id="milestone-publications">Milestone: Publications<a aria-hidden="true" tabindex="-1" href="#milestone-publications" class="internal"> §</a></h3>
<ul>
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<li>White paper - <a href="https://docs.google.com/document/d/1LCy23m90IHf32aUVhRT4r4772w1BfVcSLaJ0z9VTw9A/edit#heading=h.qs3bayckj5u4" class="external">https://docs.google.com/document/d/1LCy23m90IHf32aUVhRT4r4772w1BfVcSLaJ0z9VTw9A/edit#heading=h.qs3bayckj5u4</a></li>
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<li>Various publications incoming from Csaba</li>
</ul>
<h2 id="das">DAS<a aria-hidden="true" tabindex="-1" href="#das" class="internal"> §</a></h2>
<h3 id="milestone-das-design">Milestone: DAS Design<a aria-hidden="true" tabindex="-1" href="#milestone-das-design" class="internal"> §</a></h3>
<ul>
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<li>Ongoing discussions around - <a href="https://ethresear.ch/t/peerdas-a-simpler-das-approach-using-battle-tested-p2p-components/16541" class="external">https://ethresear.ch/t/peerdas-a-simpler-das-approach-using-battle-tested-p2p-components/16541</a></li>
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</ul>
<h3 id="milestone-measurments-and-simulations">Milestone: Measurments and simulations<a aria-hidden="true" tabindex="-1" href="#milestone-measurments-and-simulations" class="internal"> §</a></h3>
<ul>
Update documentation
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<li>Work continues on simulating various aspects of the DHT in <a href="https://github.com/cortze/py-dht" class="external">https://github.com/cortze/py-dht</a></li>
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<li>Csaba discussed/suggested fixes for Discv5 with Felix Lange</li>
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