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<html><head><title>2023-08-07 Nomos weekly</title><meta charSet="utf-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta property="og:title" content="2023-08-07 Nomos weekly"/><meta property="og:description" content="Nomos weekly report § Network implementation and Mixnet: § Research § Researched the Nym mixnet architecture in depth in order to design our prototype architecture."/><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="Nomos weekly report § Network implementation and Mixnet: § Research § Researched the Nym mixnet architecture in depth in order to design our prototype architecture."/><meta name="generator" content="Logos Roadmaps"/><link rel="preconnect" href="https://fonts.googleapis.com"/><link rel="preconnect" href="https://fonts.gstatic.com"/><link 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C28.711,30.832,29.086,31,29.5,31c0.828,0,1.5-0.672,1.5-1.5c0-0.414-0.168-0.789-0.439-1.061L28.561,26.439z M17.5,29 c-0.829,0-1.5,0.672-1.5,1.5v3c0,0.828,0.671,1.5,1.5,1.5s1.5-0.672,1.5-1.5v-3C19,29.672,18.329,29,17.5,29z M17.5,7 C11.71,7,7,11.71,7,17.5S11.71,28,17.5,28S28,23.29,28,17.5S23.29,7,17.5,7z M17.5,25c-4.136,0-7.5-3.364-7.5-7.5 c0-4.136,3.364-7.5,7.5-7.5c4.136,0,7.5,3.364,7.5,7.5C25,21.636,21.636,25,17.5,25z"></path></svg></label><label id="toggle-label-dark" for="darkmode-toggle" tabIndex="-1"><svg xmlns="http://www.w3.org/2000/svg" xmlnsXlink="http://www.w3.org/1999/xlink" version="1.1" id="nightIcon" x="0px" y="0px" viewBox="0 0 100 100" style="enable-background='new 0 0 100 100'" xmlSpace="preserve"><title>Dark mode</title><path d="M96.76,66.458c-0.853-0.852-2.15-1.064-3.23-0.534c-6.063,2.991-12.858,4.571-19.655,4.571 C62.022,70.495,50.88,65.88,42.5,57.5C29.043,44.043,25.658,23.536,34.076,6.47c0.532-1.08,0.318-2.379-0.534-3.23 c-0.851-0.852-2.15-1.064-3.23-0.534c-4.918,2.427-9.375,5.619-13.246,9.491c-9.447,9.447-14.65,22.008-14.65,35.369 c0,13.36,5.203,25.921,14.65,35.368s22.008,14.65,35.368,14.65c13.361,0,25.921-5.203,35.369-14.65 c3.872-3.871,7.064-8.328,9.491-13.246C97.826,68.608,97.611,67.309,96.76,66.458z"></path></svg></label></div><div class="toc desktop-only"><button type="button" id="toc"><h3>Table of Contents</h3><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="fold"><polyline points="6 9 12 15 18 9"></polyline></svg></button><div id="toc-content"><ul class="overflow"><li class="depth-0"><a href="#nomos-weekly-report" data-for="nomos-weekly-report">Nomos weekly report</a></li><li class="depth-2"><a href="#network-implementation-and-mixnet" data-for="network-implementation-and-mixnet">Network implementation and Mixnet:</a></li><li class="depth-2"><a href="#private-pos" data-for="private-pos">Private PoS:</a></li><li class="depth-2"><a href="#carnot" data-for="carnot">Carnot:</a></li><li class="depth-2"><a href="#data-availability-sampling-vid" data-for="data-availability-sampling-vid">Data Availability Sampling (VID):</a></li></ul></div></div></div><div class="center"><div class="page-header"><div class="popover-hint"><h1 class="article-title">2023-08-07 Nomos weekly</h1><p class="content-meta">Aug 07, 2023, 2 min read</p><ul class="tags"><li><a href="../../tags/nomos-updates" class="internal tag-link">#nomos-updates</a></li></ul></div></div><article class="popover-hint"><h1 id="nomos-weekly-report">Nomos weekly report<a aria-hidden="true" tabindex="-1" href="#nomos-weekly-report" class="internal"> §</a></h1>
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<h3 id="network-implementation-and-mixnet">Network implementation and Mixnet:<a aria-hidden="true" tabindex="-1" href="#network-implementation-and-mixnet" class="internal"> §</a></h3>
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<h4 id="research">Research<a aria-hidden="true" tabindex="-1" href="#research" class="internal"> §</a></h4>
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<ul>
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<li>Researched the Nym mixnet architecture in depth in order to design our prototype architecture.
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(Link: <a href="https://github.com/logos-co/nomos-node/issues/273#issuecomment-1661386628" class="external">273#issuecomment-1661386628</a>)</li>
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<li>Discussions about how to manage the mixnet topology.
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(Link: <a href="https://github.com/logos-co/nomos-node/issues/273#issuecomment-1665101243" class="external">273#issuecomment-1665101243</a>)</li>
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</ul>
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<h4 id="development">Development<a aria-hidden="true" tabindex="-1" href="#development" class="internal"> §</a></h4>
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<ul>
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<li>Implemented a prototype for building a Sphinx packet, mixing packets at the first hop of gossipsub with 3 mixnodes (+ encryption + delay), raw TCP connections between mixnodes, and the static entire mixnode topology.
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(Link: <a href="https://github.com/logos-co/nomos-node/pull/288" class="external">288</a>)</li>
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<li>Added support for libp2p in tests.
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(Link: <a href="https://github.com/logos-co/nomos-node/pull/287" class="external">287</a>)</li>
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<li>Added support for libp2p in nomos node.
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(Link: <a href="https://github.com/logos-co/nomos-node/pull/285" class="external">285</a>)</li>
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</ul>
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<h3 id="private-pos">Private PoS:<a aria-hidden="true" tabindex="-1" href="#private-pos" class="internal"> §</a></h3>
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<h4 id="research-1">Research<a aria-hidden="true" tabindex="-1" href="#research-1" class="internal"> §</a></h4>
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<ul>
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<li>Worked on PPoS design and addressed potential metadata leakage due to staking and rewarding.</li>
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<li>Focus on potential bribery attacks and privacy reasoning, but not much progress yet.</li>
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<li>Stopped work on Accountability mechanism and PPoS efficiency due to prioritizing bribery attacks.</li>
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</ul>
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<h3 id="carnot">Carnot:<a aria-hidden="true" tabindex="-1" href="#carnot" class="internal"> §</a></h3>
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<h4 id="research-2">Research<a aria-hidden="true" tabindex="-1" href="#research-2" class="internal"> §</a></h4>
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<ul>
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<li>Addressed two solutions for the bribery attack. Proposals pending.</li>
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<li>Work on accountability against attacks in Carnot including Slashing mechanism for attackers is paused at the moment.</li>
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<li>Modeled data decimation using a specific set of parameters and derived equations related to it.</li>
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<li>Proposed solutions to address bribery attacks without compromising the protocol’s scalability.</li>
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</ul>
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<h3 id="data-availability-sampling-vid">Data Availability Sampling (VID):<a aria-hidden="true" tabindex="-1" href="#data-availability-sampling-vid" class="internal"> §</a></h3>
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<h4 id="research-3">Research<a aria-hidden="true" tabindex="-1" href="#research-3" class="internal"> §</a></h4>
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<ul>
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<li>Analyzed data decimation in data availability problem.
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(Link: <a href="https://www.overleaf.com/read/gzqvbbmfnxyp" class="external">gzqvbbmfnxyp</a>)</li>
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<li>DA benchmarks and analysis for data commitments and encoding. This confirms that (for now), we are on the right path.</li>
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<li>Explored the idea of node sharding: <a href="https://arxiv.org/abs/1907.03331" class="external">1907.03331</a> (taken from Celestia), but discarded it because it doesn’t fit our architecture.</li>
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</ul>
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<h4 id="testing-and-node-development">Testing and Node development:<a aria-hidden="true" tabindex="-1" href="#testing-and-node-development" class="internal"> §</a></h4>
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<ul>
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<li>Fixes and enhancements made to nomos-node.
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(Link: <a href="https://github.com/logos-co/nomos-node/pull/282" class="external">282</a>)
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(Link: <a href="https://github.com/logos-co/nomos-node/pull/289" class="external">289</a>)
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(Link: <a href="https://github.com/logos-co/nomos-node/pull/293" class="external">293</a>)
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(Link: <a href="https://github.com/logos-co/nomos-node/pull/295" class="external">295</a>)</li>
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<li>Ran simulations with 10K nodes.</li>
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<li>Updated integration tests in CI to use waku or libp2p network.
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(Link: <a href="https://github.com/logos-co/nomos-node/pull/290" class="external">290</a>)</li>
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<li>Fix for the node throughput during simulations.
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(Link: <a href="https://github.com/logos-co/nomos-node/pull/295" class="external">295</a>)</li>
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