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-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<title>chaincountdown.py server by AltSheets - countdown pic for blockchains</title>
-
-<link href="yo.css" rel="stylesheet" type="text/css" />
-</head>
-
-<body>
-<table width="100%" border="0" cellspacing="5" cellpadding="0">
-  <tr>
-    <td align="center" valign="middle"><h1><em>chain</em>countdown.py </h1>
-    <h1>image server</h1>
-    <h1>by AltSheets</h1></td>
-    <td><div align="center">
-      <p>HZ example:</p>
-      <p><a href="https://horizonplatform.io/get-started/" target="_blank"><img src="/hz/1000000.gif?heading=one million&amp;color=0099ff&amp;bgcolor=003366&amp;fontsize=24&amp;headingfontsize=62" alt="hz chaincountdown" align="middle" /></a></p>
-      <p>&nbsp;</p>
-    </div></td>
-    <td><div align="center">
-      <p>NXT example:<a href="http://altsheets.ddns.net/assetgraphs/" target="_blank"></a></p>
-      <p><a href="https://nxtforum.org/nrs-releases/nrs-v1-7-4/">
-      <img src="http://altsheets.ddns.net:8888/nxt/621000.png?heading=NXT hardfork @ 621000&amp;fontsize=35&amp;headingfontsize=42&amp;bgcolor=F1F2F4&amp;color=476C8E" 
-      alt="nxt chaincountdown" align="absmiddle" /></a></p>
-    </div></td>
-  </tr>
-  <tr>
-    <td colspan="2" align="left" valign="middle"><h2>@summary: </h2>
-      <p>HttpServer returns time estimation to targetblock. As image.<br />
-        Rendered at request, variable heading, fontsizes, fontfaces, colors.<br />
-      Any NXT or HZ targetblockheight. Other coins soon. <a href="todo.html#dreamsofcrazyfutures">Future</a> dreams.</p>
-<p align="right"><span class="small">Quote of the day:</span> &quot; <strong class="serif3"><big> If you can break it, you have grokked it. </big></strong>&quot;<span class="small">  (AltSheetsDev 2015/08/10)</span></p></td>
-    <td><h2 class="orange">@news</h2>
-      <ul>
-        <li><a href="#history"><strong>v14: Much wow tools</strong></a> - <em>Several</em> node servers! Peerexplorer <em>DNS crawler</em>. HZ <em>peer crawler</em>! <br />
-          <em>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&quot;<span class="orange"><strong>126 nodes, 57 with openAPI, 37 have DNS names.</strong></span>&quot;</em></li>
-        <li class="small lessLineDistance">v13.5: measurements NXT &amp; HZ blocktimes; <strong>v14.2</strong> = NXT faster blockspeed (<a href="https://nxtforum.org/index.php?topic=10581.msg214558#msg214558" target="_blank">numbers</a>, <a href="https://github.com/altsheets/chaincountdown/blob/63a900886d6175c0dc353ca16966c7fcc664944e/config.py#L17">code</a>), measured <a href="https://bitcointalk.org/index.php?topic=823785.msg14402842#msg14402842">HZ</a> and <a href="https://bitcointalk.org/index.php?topic=1323657.msg14402520#msg14402520">BURST</a> too</li>
-        <li class="small lessLineDistance">v13: Docker magic &amp; autostarting using systemd</li>
-        <li class="small lessLineDistance">v12: my very first Dockerfile and Hub repo altsheets/chaincountdown</li>
-        <li class="small lessLineDistance">v11: &quot;Conceptual Thunderstorm&quot; </li>
-        <li class="small lessLineDistance">v10: font &amp; static pages improvements</li>
-        <li class="small lessLineDistance">v09 linux server install readme</li>
-        <li class="small lessLineDistance">v08 much: new option font; refactoring: massive reorg of the code, cleaned up</li>
-        <li class="small lessLineDistance">v07 issue fixed: blocktime not == 1.0 minutes</li>
-      </ul>
-    <p>scroll down to <a href="#history">history</a>, or to <a href="#giveback">how to spend your money wisely</a>.</p></td>
-  </tr>
-</table>
-
-
-
-
-<h2>&nbsp;</h2>
-<h2><a name="examples" id="examples"></a>@examples:</h2>
-<ul>
-  <li class="monospace"><a href="/nxt/600000.png">/nxt/600000.png</a></li>
-  <li class="monospace"><a href="/nhz/600000.png">/nhz/600000.png</a><br />
-  </li>
-  <li class="monospace"><a href="/nxt/495997.png?heading=nxthacks">/nxt/495997.png?heading=nxthacks</a></li>
-  <li class="monospace"><a href="/nxt/495997.png?heading=nxthacks%20voting:&amp;fontsize=35&amp;headingfontsize=50&amp;font=Furore">/nxt/495997.png?heading=nxthacks%20voting:&amp;fontsize=35&amp;headingfontsize=50&amp;font=Furore</a></li>
-  <li class="monospace"><a href="/hz/1000000.gif?heading=one million&amp;color=0099ff&amp;bgcolor=003366&amp;fontsize=24&amp;headingfontsize=62">/hz/1000000.gif?color=0099ff&amp;bgcolor=003366&amp;fontsize=24&amp;headingfontsize=62&amp;heading=one%20million</a></li>
-  <li class="monospace"><a href="/nxt/42.png">/nxt/42.png</a></li>
-  <li class="monospace"><a href="/btc/42.png">/btc/42.png</a></li>
-  <li class="monospace">list of bad examples resuling in more --&gt; <a href="errors.html">errors.html</a></li>
-</ul>
-<h2>@parameters</h2>
-<ul>
-  <li class="monospace">/nxt/ or /nhz/</li>
-  <li class="monospace">targetblockheight.png</li>
-  <li class="monospace">.png or .gif or .jpg</li>
-  <li class="monospace">fontsize=</li>
-  <li><span class="monospace">heading=
-    </span>
-    <ul>
-      <li class="monospace">headingfontsize=</li>
-    </ul>
-  </li>
-  <li class="monospace">color=</li>
-  <li class="monospace">bgcolor=</li>
-  <li class="monospace"><a name="allfonts" id="allfonts"></a>font=
-    <ul>
-      <li>depends on what the server provides, this one here knows:<br />
-      <img src="allfonts.png" alt="all fonts available" /><br />
-      <span class="small">( if this image does not appear (tell your admin to) call:  python imaging.py )</span></li>
-    </ul>
-  </li>
-</ul>
-<h3>@you</h3>
-<p>Please use it freely. <a href="#contact">Give feedback</a>. Any wishes?<br />
-  Tell me your ideas <em>what else can be done</em> on the basis of this ...</p>
-<h3>@requires:  </h3>
-<ul>
-  <li>NXT / HZ / BURST server for: <em>getBlockchainStatus</em> &amp;<em> getBlock</em> </li>
-  <li>(wanted: 24/7 burst server with open api).</li>
-  <li>and a lot of time for coding this :-)</li>
-</ul>
-<h3>@todo:</h3>
-<p><small>The TODOs <span class="small">... are living elsewhere now, but their mail </span></small><span class="small">gets forwarded to their new address:</span></p>
-<ul>
-  <li><small><a href="todo.html">todo.html</a></small></li>
-  <li><small><a href="architecture.html">architecture.html</a></small></li>
-</ul>
-<p><small></small>While reading ... do you notice your inner voice ... when it whispers &quot;<em>I could do that ...</em>&quot; :-)</p>
-<h2><small><a name="history" id="history"></a></small>@version <strong><span class="red">v14</span></strong> &quot;<span class="orange">Much wow tools</span>&quot; <span class="small">at 2016/01/23 22:00 UTC ~ nxt-block 622118 = hz-block 554881</span></h2>
-<p>Sourcecode available on <a href="https://github.com/altsheets/chaincountdown" target="_blank">GitHub altsheets</a></p>
-<h2><small>@history:</small></h2>
-<p>v14: Much wow tools:<br />
-  <em>&nbsp;&nbsp;&nbsp;<strong>&nbsp;&nbsp;&nbsp;&nbsp;&quot;126 nodes, 57 with open API, 37 of which have domain names&quot;</strong></em><br />
-  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Several node servers! Peerexplorer DNS crawler. HZ peer crawler!<br />
-</p>
-<ul>
-  <li>Why? A user complained to me that my image server is broken ...</li>
-  <li>... but<em> jxnt.org</em> was down, which I had been using  for API queries (of 'getBlockchainStatus' --&gt; blockNumber).</li>
-  <li>New solution: Whenever an API lookup is failing,<strong> the next server is asked.</strong> Only if all are failing, my server is in trouble.</li>
-  <li>Now <strong>server names are hardcoded</strong><a href="https://github.com/altsheets/chaincountdown/blob/master/config.py#L23-L46"> in config</a>, so I wanted servers which may last a while. Choosing by looking at their <strong>domain names</strong>.</li>
-  <li>Using the <a href="http://peerexplorer.com/peerexplorer-api">peerexplorer.com openApi</a> list, I <strong>looked up all domain names</strong>, and <strong>sorted</strong> them fancily (backwards, by TLD first!)</li>
-  <li>Then, when it came to HZ, I was lacking peerexplorer - so I created my own <strong>Horizon Peer Crawler (#HPC)</strong>: <em>57 nodes with open API</em></li>
-  <li>I could recycle the above DNS lookup: <em>37 of which have domain names</em>.</li>
-  <li>And in the end, I even added a test if an <strong>IP is answering on port 7774</strong> - so now I know: <em>126 nodes</em><strong>.</strong></li>
-</ul>
-<p>See <a href="https://github.com/altsheets/chaincountdown/blob/master/tools/peerMagic.py">peerMagic.py</a> for the multithreaded(!) code, and <a href="https://github.com/altsheets/chaincountdown/blob/master/tools/peerMagic_NXT.txt">peerMagic_NXT.txt</a> and <a href="https://github.com/altsheets/chaincountdown/blob/master/tools/peerMagic_HZ.txt">peerMagic_HZ.txt</a> for example output. </p>
-<p align="center"><strong>If you like this, <a href="#giveback">show it</a></strong> !</p>
-<p>v13.5: Block times revisited</p>
-<ul>
-  <li>new blocktime measurements, see github <a href="https://github.com/altsheets/chaincountdown/blob/master/config.py#L24">config.py</a> and <a href="https://github.com/altsheets/chaincountdown/tree/master/tools">/tools folder</a></li>
-  <li>NXT block 621,000 = hard fork
-    <ul>
-      <li>NXT example pic (at the top of this page) changed </li>
-      <li><a href="https://nxtforum.org/nrs-releases/nrs-v1-7-4/msg205165/#msg205165">post in nxtforum</a> - suggestion to use these pics to alert people</li>
-    </ul>
-  </li>
-  <li>updated donations, history, links to my other projects (<a href="#giveback">below</a>)</li>
-</ul>
-<p>v13: Docker magic
-</p>
-<ul>
-  <li>learnt lots more about Docker, powerful stuff ... and applied it:</li>
-  <li>see github <a href="https://github.com/altsheets/chaincountdown/tree/master/docker">chaincountdown/docker</a> for these files, and more info on:
-    <ul>
-      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/clonethenrunserver.sh">clonethenrunserver.sh</a> is running inside the container
-        <ul>
-          <li>it cleverly clones the newest source code from github, before it starts the CCD server</li>
-          <li>and alternatively, <a href="https://github.com/altsheets/chaincountdown/blob/master/docker/withssh.sh">withssh.sh</a> additionally allows for ssh access into the docker container</li>
-        </ul>
-      </li>
-      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/dockerbuild.sh">dockerbuild.sh</a> is building an image from the <a href="https://github.com/altsheets/chaincountdown/blob/master/docker/Dockerfile">Dockerfile</a></li>
-      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/dockercheatsheet.txt">dockercheatsheet.txt</a> = useful docker commands</li>
-      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/README.md">README.md</a> exlaining it all</li>
-    </ul>
-  </li>
-  <li>autostarting using systemd
-    <ul>
-      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/chaincountdown.service">chaincountdown.service</a> for systemd.</li>
-      <li><a href="https://github.com/altsheets/chaincountdown/tree/master/docker#start-with-systemd">instructions</a> how to install it.</li>
-    </ul>
-  </li>
-</ul>
-<p>v12: ... learning Docker. My very first <a href="https://github.com/altsheets/chaincountdown/blob/master/Dockerfile"></a>
-</p>
-<ul>
-  <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/Dockerfile">Dockerfile</a>, and </li>
-  <li>DockerHub repository <a href="https://hub.docker.com/r/altsheets/chaincountdown/">altsheets/chaincountdown</a></li>
-  <li>and a lot of extra learning, because &quot;<a href="https://github.com/docker/docker/issues/15741">Windows is different</a>&quot; again :-)</li>
-  <li>already have an idea for an even better Dockerfile - one which always pulls the newest sourcecode from github. Next time ...</li>
-  <li><strong>oh, and actually *lol*<a href="http://altsheets.ddns.net/nxthacks2015/"> ...<br />
-  I have won the nxthacks2015</a> - the voting poll of which was the inspiration for this chaincountdown.</strong></li>
-</ul>
-<p>v11: &quot;Conceptual Thunderstorm&quot; - coding in the old programming language &quot;English&quot;:
-</p>
-<ul>
-  <li>new <a href="architecture.html">architecture.html</a>
-  </li>
-  <li>new <a href="todo.html"> todo.html</a></li>
-  <li>better <a href="errors.html">errors.html</a></li>
-  <li>github <a href="https://github.com/altsheets/chaincountdown/wiki">wikiwiki</a></li>
-  <li>github <a href="https://github.com/altsheets/chaincountdown/issues">issues</a></li>
-  <li><small><small>I started this session (the 3rd after waking up 26 hours ago) in a <a href="https://en.wikipedia.org/wiki/Mind_map">MINDMAP software</a></small></small>.
-    <p>
-      </li>
-    </p>
-  </li>
-  <li>What inspired me much ... to still continue, and happily... was this reaction : <br />
-    &quot; <span class="serif3">It works! This is awesome. Tomorrow, i will make it work for ethereum</span>. &quot;<br />
-    Thanks! Feedback is a booster ...<br />
-    <p>&nbsp;</p>
-  </li>
-</ul>
-<p>v10: Fonts &amp; Static pages - detected automatically:
-</p>
-<ul>
-  <li>all fontnames &amp; static files are collected at startup</li>
-  <li>new modules: helpers.py,  imaging_tests.py</li>
-  <li>two new image generators:
-    <ul>
-      <li><a href="#allfonts">all available fonts - 'allfonts.png'</a> image is re-rendered when you call: python imaging.py</li>
-      <li>all fonts with increasing size (to test minimum readable fontsize). Call: python imaging_tests.py</li>
-    </ul>
-  </li>
-  <li>new static page: <a href="errors.html">errors.html</a> with all errors that are caught</li>
-</ul>
-<p>v09: all automatic now:
-</p>
-<ul>
-  <li>at startup, prints folders, username, and current time, good for --&gt; </li>
-  <li>logging</li>
-  <li>README-serverinstall.txt
-    <ul>
-      <li>starts the webserver not as root but as dedicated user</li>
-    </ul>
-  </li>
-</ul>
-<p>v08: beta is ending ...
-</p>
-<ul>
-  <li>refactoring: cleaned up, lots of comments, massive reorg of the code, more readable</li>
-  <li>now 4 modules: config, imaging, server, chaincountdown</li>
-  <li>new option: font</li>
-  <li>better suggestion when wrong url format</li>
-  <li>server searches always in local folder</li>
-  <li>specific http errors for each failure (5 different error codes)</li>
-  <li>new manuals: README.md, error-handling.html</li>
-</ul>
-<p>v07: Oops, <em>that is why</em> my target time kept on moving away so fast (-:
-</p>
-<ul>
-  <li>the NXT-blocktime is not 1 minute, but 1.9005 minutes during the past 5000 blocks. </li>
-  <li>        similar
-    for HZ: 1.7861 minutes during the past 5000 blocks.</li>
-  <li>Hardcoding those numbers - for now. </li>
-  <li>Yippieh, that gives us many more days until the voting concludes at height 495997</li>
-</ul>
-<p>v06: Ready. Told people about this in the slack.</p>
-<p>v04: This manual page.</p>
-<hr />
-<h3>  @author: AltSheets </h3>
-<h3><a name="giveback" id="giveback"></a>@license (c) 2015</h3>
-<table width="100%" border="0" cellspacing="5" cellpadding="0">
-  <tr>
-    <td valign="middle"><p>Giveback license v05 <a href="http://altsheets.ddns.net/give/" target="_blank">http://altsheets.ddns.net/give/</a> -&gt;</p>
-      <ul>
-        <li>@donate: send other currencies to:
-          <ul>
-            <li> NXT-CMKU-ZQYK-V6CD-9UHF4</li>
-            <li> NHZ-Q675-SGBG-LQ43-D38L6</li>
-            <li> BURST-ESVR-L2WJ-NT3Y-BWM6V</li>
-            <li>SOIL: 0x8da4fc05ca343e6a41646194e91931d9f413a40c</li>
-          </ul>
-        </li>
-        <li> @invest: into my dividends paying assets
-          <ul>
-            <li><strong>AAssetHZ (HZ <a href="http://altsheets.ddns.net/aassethz/" target="_blank">8101260088962758269</a>)</strong></li>
-            <li><strong>AAssetNXT (NXT <a href="http://altsheets.ddns.net/aassetnxt" target="_blank">13634799205909171438</a>)</strong></li>
-          </ul>
-        </li>
-        <li> @freetrial:
-          <ul>
-            <li> my auto-updated <em>portfolio overview sheet</em>: <a href="http://altfolio.ddns.net" target="_blank"><strong>AltFolio</strong></a> - free trial! Resell!
-              <ul>
-                <li> Overview! Time saver! React faster to sudden market changes!</li>
-              </ul>
-            </li>
-            <li>my award winning <a href="http://altsheets.ddns.net/assetgraphs/v2/products"><strong>AssetGraphs</strong> v2 products</a> - resell bonus!
-              <ul>
-                <li>innovative blockchain data viewer. <a href="http://altsheets.ddns.net/assetgraphs/v2/products/#product2">Play with it now</a>!</li>
-              </ul>
-            </li>
-          </ul>
-        </li>
-    </ul></td>
-    <td align="center" valign="middle"><p>Donation address exclusive to this project: <strong><span class="monospace"><br />
-      [BTC] <a href="https://blockchain.info/address/13whfNFT2dse7eiuNXVkuJivjxqSXHrW4j" target="_blank">13whfNFT2dse7eiuNXVkuJivjxqSXHrW4j</a></span></strong></p>
-    <p><img src="QR-bitcoin-13whfNFT2dse7eiuNXVkuJivjxqSXHrW4j.png" width="200" height="200" alt="bitcoin:13whfNFT2dse7eiuNXVkuJivjxqSXHrW4j" /></p>
-    <p>Thanks a lot! Much appreciated! </p></td>
-  </tr>
-</table>
-<h3>@for-sale</h3>
-<p>The python code for this server is also for sale. Contact me for details. Or not. Spend your money for other things. But spend it - keeping money creates a foul odor.</p>
-<h3><a name="contact" id="contact"></a>@contact</h3>
-<p>2nd best way is <a href="https://github.com/altsheets/chaincountdown/wiki/Feedback">writing into our wikiwiki</a>. <br />
-But <strong><span class="orange">eMail ... <em>is still the best ...:</em></span></strong> <a href="mailto:altsheets(plus)chaincountdown(at)gmail(dot)com">altsheets(plus)chaincountdown(at)gmail(dot)com</a></p>
-<hr />
-<address>
-<p class="footer">April 2nd 2016 @ 20:55 UTC = last change of <a href="http://altsheets.ddns.net:8888">http://altsheets.ddns.net:8888</a></p>
-</address>
-<p>&nbsp;</p>
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<title>chaincountdown.py server by AltSheets - countdown pic for blockchains</title>
+
+<link href="yo.css" rel="stylesheet" type="text/css" />
+</head>
+
+<body>
+<table width="100%" border="0" cellspacing="5" cellpadding="0">
+  <tr>
+    <td align="center" valign="middle"><h1><em>chain</em>countdown.py </h1>
+    <h1>image server</h1>
+    <h1>by AltSheets</h1></td>
+    <td><div align="center">
+      <p>HZ example:</p>
+      <p><a href="https://horizonplatform.io/get-started/" target="_blank"><img src="/hz/1000000.gif?heading=one million&amp;color=0099ff&amp;bgcolor=003366&amp;fontsize=24&amp;headingfontsize=62" alt="hz chaincountdown" align="middle" /></a></p>
+      <p>&nbsp;</p>
+    </div></td>
+    <td><div align="center">
+      <p>NXT example:<a href="http://altsheets.ddns.net/assetgraphs/" target="_blank"></a></p>
+      <p><a href="https://nxtforum.org/nrs-releases/nrs-v1-7-4/">
+      <img src="http://altsheets.ddns.net:8888/nxt/621000.png?heading=NXT hardfork @ 621000&amp;fontsize=35&amp;headingfontsize=42&amp;bgcolor=F1F2F4&amp;color=476C8E" 
+      alt="nxt chaincountdown" align="absmiddle" /></a></p>
+    </div></td>
+  </tr>
+  <tr>
+    <td colspan="2" align="left" valign="middle"><h2>@summary: </h2>
+      <p>Time estimation to targetblock. HttpServer returns image, auto-updated.<br />
+        Image rendered at request; variable heading, fontsizes, fontfaces, colors.<br />
+      Any NXT or HZ targetblockheight. Useful for voting, phasing, code upgrades.<br />
+      </p>
+      <p>      Other coins possible, just donate to me, and name node IPs (<a href="https://bitcointalk.org/index.php?topic=1323657.msg14420455#msg14420455">example</a>).</p>
+      <p>Some        <a href="todo.html#dreamsofcrazyfutures">future</a> dreams how this could evolve. No really, this is a toy project. Enthusiasm rocks!</p>
+<p align="right"><span class="small">Quote of the day:</span> &quot; <strong class="serif3"><big> If you can break it, you have grokked it. </big></strong>&quot;<span class="small">  (AltSheetsDev 2015/08/10)</span></p></td>
+    <td><h2 class="orange">@news</h2>
+      <ul>
+        <li><a href="#history"><strong>v14: Much wow tools</strong></a> - <em>Several</em> node servers! Peerexplorer <em>DNS crawler</em>. HZ <em>peer crawler</em>! <br />
+          <em>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&quot;<span class="orange"><strong>126 nodes, 57 with openAPI, 37 have DNS names.</strong></span>&quot;</em></li>
+        <li class="small lessLineDistance">v13.5: measurements NXT &amp; HZ blocktimes; <strong>v14.2</strong> = NXT faster blockspeed (<a href="https://nxtforum.org/index.php?topic=10581.msg214558#msg214558" target="_blank">numbers</a>, <a href="https://github.com/altsheets/chaincountdown/blob/63a900886d6175c0dc353ca16966c7fcc664944e/config.py#L17">code</a>), measured <a href="https://bitcointalk.org/index.php?topic=823785.msg14402842#msg14402842">HZ</a>, and <a href="https://bitcointalk.org/index.php?topic=1323657.msg14402520#msg14402520">BURST</a> too.</li>
+        <li class="small lessLineDistance">v13: Docker magic &amp; autostarting using systemd</li>
+        <li class="small lessLineDistance">v12: my very first Dockerfile and Hub repo altsheets/chaincountdown</li>
+        <li class="small lessLineDistance">v11: &quot;Conceptual Thunderstorm&quot; </li>
+        <li class="small lessLineDistance">v10: font &amp; static pages improvements</li>
+        <li class="small lessLineDistance">v09 linux server install readme</li>
+        <li class="small lessLineDistance">v08 much: new option font; refactoring: massive reorg of the code, cleaned up</li>
+        <li class="small lessLineDistance">v07 issue fixed: blocktime not == 1.0 minutes</li>
+      </ul>
+    <p>scroll down to <a href="#history">history</a>, or to <a href="#giveback">how to spend your money wisely</a>.</p></td>
+  </tr>
+</table>
+
+
+
+
+<h2>&nbsp;</h2>
+<h2><a name="examples" id="examples"></a>@examples:</h2>
+<ul>
+  <li class="monospace"><a href="/nxt/600000.png">/nxt/600000.png</a></li>
+  <li class="monospace"><a href="/nhz/600000.png">/nhz/600000.png</a><br />
+  </li>
+  <li class="monospace"><a href="/nxt/495997.png?heading=nxthacks">/nxt/495997.png?heading=nxthacks</a></li>
+  <li class="monospace"><a href="/nxt/495997.png?heading=nxthacks%20voting:&amp;fontsize=35&amp;headingfontsize=50&amp;font=Furore">/nxt/495997.png?heading=nxthacks%20voting:&amp;fontsize=35&amp;headingfontsize=50&amp;font=Furore</a></li>
+  <li class="monospace"><a href="/hz/1000000.gif?heading=one million&amp;color=0099ff&amp;bgcolor=003366&amp;fontsize=24&amp;headingfontsize=62">/hz/1000000.gif?color=0099ff&amp;bgcolor=003366&amp;fontsize=24&amp;headingfontsize=62&amp;heading=one%20million</a></li>
+  <li class="monospace"><a href="/nxt/42.png">/nxt/42.png</a></li>
+  <li class="monospace"><a href="/btc/42.png">/btc/42.png</a></li>
+  <li class="monospace">list of bad examples resuling in more --&gt; <a href="errors.html">errors.html</a></li>
+</ul>
+<h2>@parameters</h2>
+<ul>
+  <li class="monospace">/nxt/ or /nhz/</li>
+  <li class="monospace">targetblockheight.png</li>
+  <li class="monospace">.png or .gif or .jpg</li>
+  <li class="monospace">fontsize=</li>
+  <li><span class="monospace">heading=
+    </span>
+    <ul>
+      <li class="monospace">headingfontsize=</li>
+    </ul>
+  </li>
+  <li class="monospace">color=</li>
+  <li class="monospace">bgcolor=</li>
+  <li class="monospace"><a name="allfonts" id="allfonts"></a>font=
+    <ul>
+      <li>depends on what the server provides, this one here knows:<br />
+      <img src="allfonts.png" alt="all fonts available" /><br />
+      <span class="small">( if this image does not appear (tell your admin to) call:  python imaging.py )</span></li>
+    </ul>
+  </li>
+</ul>
+<h3>@you</h3>
+<p>Please use it freely. <a href="#contact">Give feedback</a>. Any wishes?<br />
+  Tell me your ideas <em>what else can be done</em> on the basis of this ...</p>
+<h3>@requires:  </h3>
+<ul>
+  <li>NXT / HZ / BURST server for: <em>getBlockchainStatus</em> &amp;<em> getBlock</em> </li>
+  <li>(wanted: 24/7 burst server with open api).</li>
+  <li>and a lot of time for coding this :-)</li>
+</ul>
+<h3>@todo:</h3>
+<p><small>The TODOs <span class="small">... are living elsewhere now, but their mail </span></small><span class="small">gets forwarded to their new address:</span></p>
+<ul>
+  <li><small><a href="todo.html">todo.html</a></small></li>
+  <li><small><a href="architecture.html">architecture.html</a></small></li>
+</ul>
+<p><small></small>While reading ... do you notice your inner voice ... when it whispers &quot;<em>I could do that ...</em>&quot; :-)</p>
+<h2><small><a name="history" id="history"></a></small>@version <strong><span class="red">v14</span></strong> &quot;<span class="orange">Much wow tools</span>&quot; <span class="small">at 2016/01/23 22:00 UTC ~ nxt-block 622118 = hz-block 554881</span></h2>
+<p>Sourcecode available on <a href="https://github.com/altsheets/chaincountdown" target="_blank">GitHub altsheets</a></p>
+<h2><small>@history:</small></h2>
+<p>v14: Much wow tools:<br />
+  <em>&nbsp;&nbsp;&nbsp;<strong>&nbsp;&nbsp;&nbsp;&nbsp;&quot;126 nodes, 57 with open API, 37 of which have domain names&quot;</strong></em><br />
+  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Several node servers! Peerexplorer DNS crawler. HZ peer crawler!<br />
+</p>
+<ul>
+  <li>Why? A user complained to me that my image server is broken ...</li>
+  <li>... but<em> jxnt.org</em> was down, which I had been using  for API queries (of 'getBlockchainStatus' --&gt; blockNumber).</li>
+  <li>New solution: Whenever an API lookup is failing,<strong> the next server is asked.</strong> Only if all are failing, my server is in trouble.</li>
+  <li>Now <strong>server names are hardcoded</strong><a href="https://github.com/altsheets/chaincountdown/blob/master/config.py#L23-L46"> in config</a>, so I wanted servers which may last a while. Choosing by looking at their <strong>domain names</strong>.</li>
+  <li>Using the <a href="http://peerexplorer.com/peerexplorer-api">peerexplorer.com openApi</a> list, I <strong>looked up all domain names</strong>, and <strong>sorted</strong> them fancily (backwards, by TLD first!)</li>
+  <li>Then, when it came to HZ, I was lacking peerexplorer - so I created my own <strong>Horizon Peer Crawler (#HPC)</strong>: <em>57 nodes with open API</em></li>
+  <li>I could recycle the above DNS lookup: <em>37 of which have domain names</em>.</li>
+  <li>And in the end, I even added a test if an <strong>IP is answering on port 7774</strong> - so now I know: <em>126 nodes</em><strong>.</strong></li>
+</ul>
+<p>See <a href="https://github.com/altsheets/chaincountdown/blob/master/tools/peerMagic.py">peerMagic.py</a> for the multithreaded(!) code, and <a href="https://github.com/altsheets/chaincountdown/blob/master/tools/peerMagic_NXT.txt">peerMagic_NXT.txt</a> and <a href="https://github.com/altsheets/chaincountdown/blob/master/tools/peerMagic_HZ.txt">peerMagic_HZ.txt</a> for example output. </p>
+<p align="center"><strong>If you like this, <a href="#giveback">show it</a></strong> !</p>
+<p>v13.5: Block times revisited</p>
+<ul>
+  <li>new blocktime measurements, see github <a href="https://github.com/altsheets/chaincountdown/blob/master/config.py#L24">config.py</a> and <a href="https://github.com/altsheets/chaincountdown/tree/master/tools">/tools folder</a></li>
+  <li>NXT block 621,000 = hard fork
+    <ul>
+      <li>NXT example pic (at the top of this page) changed </li>
+      <li><a href="https://nxtforum.org/nrs-releases/nrs-v1-7-4/msg205165/#msg205165">post in nxtforum</a> - suggestion to use these pics to alert people</li>
+    </ul>
+  </li>
+  <li>updated donations, history, links to my other projects (<a href="#giveback">below</a>)</li>
+</ul>
+<p>v13: Docker magic
+</p>
+<ul>
+  <li>learnt lots more about Docker, powerful stuff ... and applied it:</li>
+  <li>see github <a href="https://github.com/altsheets/chaincountdown/tree/master/docker">chaincountdown/docker</a> for these files, and more info on:
+    <ul>
+      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/clonethenrunserver.sh">clonethenrunserver.sh</a> is running inside the container
+        <ul>
+          <li>it cleverly clones the newest source code from github, before it starts the CCD server</li>
+          <li>and alternatively, <a href="https://github.com/altsheets/chaincountdown/blob/master/docker/withssh.sh">withssh.sh</a> additionally allows for ssh access into the docker container</li>
+        </ul>
+      </li>
+      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/dockerbuild.sh">dockerbuild.sh</a> is building an image from the <a href="https://github.com/altsheets/chaincountdown/blob/master/docker/Dockerfile">Dockerfile</a></li>
+      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/dockercheatsheet.txt">dockercheatsheet.txt</a> = useful docker commands</li>
+      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/README.md">README.md</a> exlaining it all</li>
+    </ul>
+  </li>
+  <li>autostarting using systemd
+    <ul>
+      <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/chaincountdown.service">chaincountdown.service</a> for systemd.</li>
+      <li><a href="https://github.com/altsheets/chaincountdown/tree/master/docker#start-with-systemd">instructions</a> how to install it.</li>
+    </ul>
+  </li>
+</ul>
+<p>v12: ... learning Docker. My very first <a href="https://github.com/altsheets/chaincountdown/blob/master/Dockerfile"></a>
+</p>
+<ul>
+  <li><a href="https://github.com/altsheets/chaincountdown/blob/master/docker/Dockerfile">Dockerfile</a>, and </li>
+  <li>DockerHub repository <a href="https://hub.docker.com/r/altsheets/chaincountdown/">altsheets/chaincountdown</a></li>
+  <li>and a lot of extra learning, because &quot;<a href="https://github.com/docker/docker/issues/15741">Windows is different</a>&quot; again :-)</li>
+  <li>already have an idea for an even better Dockerfile - one which always pulls the newest sourcecode from github. Next time ...</li>
+  <li><strong>oh, and actually *lol*<a href="http://altsheets.ddns.net/nxthacks2015/"> ...<br />
+  I have won the nxthacks2015</a> - the voting poll of which was the inspiration for this chaincountdown.</strong></li>
+</ul>
+<p>v11: &quot;Conceptual Thunderstorm&quot; - coding in the old programming language &quot;English&quot;:
+</p>
+<ul>
+  <li>new <a href="architecture.html">architecture.html</a>
+  </li>
+  <li>new <a href="todo.html"> todo.html</a></li>
+  <li>better <a href="errors.html">errors.html</a></li>
+  <li>github <a href="https://github.com/altsheets/chaincountdown/wiki">wikiwiki</a></li>
+  <li>github <a href="https://github.com/altsheets/chaincountdown/issues">issues</a></li>
+  <li><small><small>I started this session (the 3rd after waking up 26 hours ago) in a <a href="https://en.wikipedia.org/wiki/Mind_map">MINDMAP software</a></small></small>.
+    <p>
+      </li>
+    </p>
+  </li>
+  <li>What inspired me much ... to still continue, and happily... was this reaction : <br />
+    &quot; <span class="serif3">It works! This is awesome. Tomorrow, i will make it work for ethereum</span>. &quot;<br />
+    Thanks! Feedback is a booster ...<br />
+    <p>&nbsp;</p>
+  </li>
+</ul>
+<p>v10: Fonts &amp; Static pages - detected automatically:
+</p>
+<ul>
+  <li>all fontnames &amp; static files are collected at startup</li>
+  <li>new modules: helpers.py,  imaging_tests.py</li>
+  <li>two new image generators:
+    <ul>
+      <li><a href="#allfonts">all available fonts - 'allfonts.png'</a> image is re-rendered when you call: python imaging.py</li>
+      <li>all fonts with increasing size (to test minimum readable fontsize). Call: python imaging_tests.py</li>
+    </ul>
+  </li>
+  <li>new static page: <a href="errors.html">errors.html</a> with all errors that are caught</li>
+</ul>
+<p>v09: all automatic now:
+</p>
+<ul>
+  <li>at startup, prints folders, username, and current time, good for --&gt; </li>
+  <li>logging</li>
+  <li>README-serverinstall.txt
+    <ul>
+      <li>starts the webserver not as root but as dedicated user</li>
+    </ul>
+  </li>
+</ul>
+<p>v08: beta is ending ...
+</p>
+<ul>
+  <li>refactoring: cleaned up, lots of comments, massive reorg of the code, more readable</li>
+  <li>now 4 modules: config, imaging, server, chaincountdown</li>
+  <li>new option: font</li>
+  <li>better suggestion when wrong url format</li>
+  <li>server searches always in local folder</li>
+  <li>specific http errors for each failure (5 different error codes)</li>
+  <li>new manuals: README.md, error-handling.html</li>
+</ul>
+<p>v07: Oops, <em>that is why</em> my target time kept on moving away so fast (-:
+</p>
+<ul>
+  <li>the NXT-blocktime is not 1 minute, but 1.9005 minutes during the past 5000 blocks. </li>
+  <li>        similar
+    for HZ: 1.7861 minutes during the past 5000 blocks.</li>
+  <li>Hardcoding those numbers - for now. </li>
+  <li>Yippieh, that gives us many more days until the voting concludes at height 495997</li>
+</ul>
+<p>v06: Ready. Told people about this in the slack.</p>
+<p>v04: This manual page.</p>
+<hr />
+<h3>  @author: AltSheets </h3>
+<h3><a name="giveback" id="giveback"></a>@license (c) 2015</h3>
+<table width="100%" border="0" cellspacing="5" cellpadding="0">
+  <tr>
+    <td valign="middle"><p>Giveback license v05 <a href="http://altsheets.ddns.net/give/" target="_blank">http://altsheets.ddns.net/give/</a> -&gt;</p>
+      <ul>
+        <li>@donate: send other currencies to:
+          <ul>
+            <li> NXT-CMKU-ZQYK-V6CD-9UHF4</li>
+            <li> NHZ-Q675-SGBG-LQ43-D38L6</li>
+            <li> BURST-ESVR-L2WJ-NT3Y-BWM6V</li>
+            <li>SOIL: 0x8da4fc05ca343e6a41646194e91931d9f413a40c</li>
+          </ul>
+        </li>
+        <li> @invest: into my dividends paying assets
+          <ul>
+            <li><strong>AAssetHZ (HZ <a href="http://altsheets.ddns.net/aassethz/" target="_blank">8101260088962758269</a>)</strong></li>
+            <li><strong>AAssetNXT (NXT <a href="http://altsheets.ddns.net/aassetnxt" target="_blank">13634799205909171438</a>)</strong></li>
+          </ul>
+        </li>
+        <li> @freetrial:
+          <ul>
+            <li> my auto-updated <em>portfolio overview sheet</em>: <a href="http://altfolio.ddns.net" target="_blank"><strong>AltFolio</strong></a> - free trial! Resell!
+              <ul>
+                <li> Overview! Time saver! React faster to sudden market changes!</li>
+              </ul>
+            </li>
+            <li>my award winning <a href="http://altsheets.ddns.net/assetgraphs/v2/products"><strong>AssetGraphs</strong> v2 products</a> - resell bonus!
+              <ul>
+                <li>innovative blockchain data viewer. <a href="http://altsheets.ddns.net/assetgraphs/v2/products/#product2">Play with it now</a>!</li>
+              </ul>
+            </li>
+          </ul>
+        </li>
+    </ul></td>
+    <td align="center" valign="middle"><p>Donation address exclusive to this project: <strong><span class="monospace"><br />
+      [BTC] <a href="https://blockchain.info/address/13whfNFT2dse7eiuNXVkuJivjxqSXHrW4j" target="_blank">13whfNFT2dse7eiuNXVkuJivjxqSXHrW4j</a></span></strong></p>
+    <p><img src="QR-bitcoin-13whfNFT2dse7eiuNXVkuJivjxqSXHrW4j.png" width="200" height="200" alt="bitcoin:13whfNFT2dse7eiuNXVkuJivjxqSXHrW4j" /></p>
+    <p>Thanks a lot! Much appreciated! </p></td>
+  </tr>
+</table>
+<h3>@for-sale</h3>
+<p>The python code for this server is also for sale. Contact me for details. Or not. Spend your money for other things. But spend it - keeping money creates a foul odor.</p>
+<h3><a name="contact" id="contact"></a>@contact</h3>
+<p>2nd best way is <a href="https://github.com/altsheets/chaincountdown/wiki/Feedback">writing into our wikiwiki</a>. <br />
+But <strong><span class="orange">eMail ... <em>is still the best ...:</em></span></strong> <a href="mailto:altsheets(plus)chaincountdown(at)gmail(dot)com">altsheets(plus)chaincountdown(at)gmail(dot)com</a></p>
+<hr />
+<address>
+<p class="footer">April 2nd 2016 @ 20:55 UTC = last change of <a href="http://altsheets.ddns.net:8888">http://altsheets.ddns.net:8888</a></p>
+</address>
+<p>&nbsp;</p>
+</body>
+</html>
