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 <ul>
   <li><a href="https://github.com/kennethreitz/awesome-coins">Awesome Crypto Currency Tools & Algorithms (Guide)</a></li>
 </ul>
+
+<h2>Pro Version</h2>
+
+<p>We're collecting historical, moving forward<label for="sn-in-his-later-books" class="margin-toggle sidenote-number"></label></span><input type="checkbox" id="sn-in-his-later-books" class="margin-toggle"/><span class="sidenote"><em>We may backfill our historical data as well, if customers are interested.</em></span>, every 5 minutes (instead of daily). If you'd like access to this data, <a href="mailto:me@kennethreitz.org">send us an email</p>. We accept payment in coins. </p>
     </article>
 
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