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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Blockstream</span></h1>
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<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><table class="toccolours infobox float-right toptextcells vorlage-infobox-unternehmen" style="font-size:90%; max-width:25em; margin-top:0;" summary="Infobox Unternehmen">
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<th colspan="2" class="hintergrundfarbe5" style="font-size:110%;">Blockstream
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<td style="font-weight:bold;"><a href="Rechtsform" title="Rechtsform">Rechtsform</a>
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<td><a href="Aktiengesellschaft_(Kanada)" title="Aktiengesellschaft (Kanada)">Corporation</a>
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<td style="font-weight:bold;"><a href="Gr%C3%BCndung_(Recht)" title="Gründung (Recht)">Gründung</a>
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<td>2014
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<td style="font-weight:bold;"><a href="Sitz_(juristische_Person)" title="Sitz (juristische Person)">Sitz</a>
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<td><a href="Victoria_(British_Columbia)" title="Victoria (British Columbia)">Victoria (British Columbia)</a>
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<td style="font-weight:bold;"><a href="Unternehmensf%C3%BChrung" title="Unternehmensführung">Leitung</a>
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<td><a href="Adam_Back" title="Adam Back">Adam Back</a>
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<td style="font-weight:bold;">Website
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<td><a rel="nofollow" class="external text" href="https://blockstream.com">blockstream.com</a>
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<p><b>Blockstream</b> ist ein <a href="Blockchain" title="Blockchain">Blockchain</a>-Unternehmen, welches von Adam Back gegründet und geleitet wird. Mitgründer waren unter anderem die langjährigen <a href="Bitcoin_Core" title="Bitcoin Core">Bitcoin-Core</a>-Entwickler <i>Pieter Wuille, Gregory Maxwell, Matt Corallo und andere</i>. Das Unternehmen ist maßgeblich an der Entwicklung von <a href="Bitcoin" title="Bitcoin">Bitcoin</a>, <a href="Lightning-Netzwerk" title="Lightning-Netzwerk">Lightning Network</a> und diversen Sidechains beteiligt<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> und beschäftigt mehrere Bitcoin-Core-Entwickler.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Produkte">Produkte</h2></div>
<div class="mw-heading mw-heading3"><h3 id="Blockstream_Satellit">Blockstream Satellit</h3></div>
<p>2017 begann das Unternehmen, Telekommunikationssatelliten im Erdorbit zu nutzen, um damit die Bitcoin-Blockchain überall auf der Welt verfügbar zu machen. Mittlerweile werden 6 Satelliten genutzt, welche große Teile der Erde abdecken.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Blockstream-Satellit ist allerdings nur eine Einwegverbindung. Dies bedeutet, dass man damit zwar die Blockchain empfangen, sie aber nicht bearbeiten kann. So ist das Übertragen von Transaktionen nicht möglich. Dies kann jedoch teilweise mit SMS umgangen werden.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading3"><h3 id="Liquid_Network">Liquid Network</h3></div>
<p>2015 veröffentlichte Blockstream die Sidechain Liquid. Diese soll Transaktionen schneller machen und das Bitcoin-Netzwerk weniger auslasten.
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<div class="mw-heading mw-heading2"><h2 id="Initiativen">Initiativen</h2></div>
<div class="mw-heading mw-heading3"><h3 id="Lightning_Network">Lightning Network</h3></div>
<p>Blockstream fördert den Einsatz und die Verbreitung des <a href="Lightning_Network" class="mw-redirect" title="Lightning Network">Lightning Network</a> und steht hinter der Implementierung Core Lightning. Blockstream war unter anderem eines der ersten Unternehmen, welche einen Lightning Network Store aufsetzten.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Kritik">Kritik</h2></div>
<div class="mw-heading mw-heading3"><h3 id="Kontrolle_von_Bitcoin">Kontrolle von Bitcoin</h3></div>
<p>Blockstream wird vor allem von <a href="Bitcoin_Cash" title="Bitcoin Cash">Bitcoin-Cash</a>-Anhängern vorgeworfen, die Entwicklung von Bitcoin massiv zu beeinflussen. Sie begründen dies damit, dass Blockstream viele Bitcoin-Core-Entwickler angestellt hat und sie damit kontrolliert.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="https://blockstream.com/"><i>Blockstream - Blockstream.</i></a><span class="Abrufdatum"> Abgerufen am 28. Juni 2019</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3ABlockstream&rft.title=Blockstream+-+Blockstream&rft.description=Blockstream+-+Blockstream&rft.identifier=https%3A%2F%2Fblockstream.com%2F%23"> </span></span>
</li>
<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">Nathaniel Popper: <cite style="font-style:italic">Some Bitcoin Backers Are Defecting to Create a Rival Currency</cite>. In: <cite style="font-style:italic">The New York Times</cite>. 25. Juli 2017, <a href="Internationale_Standardnummer_f%C3%BCr_fortlaufende_Sammelwerke" title="Internationale Standardnummer für fortlaufende Sammelwerke">ISSN</a> <span style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://zdb-katalog.de/list.xhtml?t=iss%3D%220362-4331%22&key=cql">0362-4331</a></span> (<a rel="nofollow" class="external text" href="https://www.nytimes.com/2017/07/25/business/dealbook/bitcoin-cash-split.html">nytimes.com</a> [abgerufen am 28. Juni 2019]).<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rfr_id=info:sid/de.wikipedia.org:Blockstream&rft.atitle=Some+Bitcoin+Backers+Are+Defecting+to+Create+a+Rival+Currency&rft.au=Nathaniel+Popper&rft.date=2017-07-25&rft.genre=journal&rft.issn=0362-4331&rft.jtitle=The+New+York+Times" style="display:none"> </span></span>
</li>
<li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="https://blockstream.com/satellite/"><i>Satellite.</i></a><span class="Abrufdatum"> Abgerufen am 28. Juni 2019</span> (englisch).</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3ABlockstream&rft.title=Satellite&rft.description=Satellite&rft.identifier=https%3A%2F%2Fblockstream.com%2Fsatellite%2F&rft.language=en"> </span></span>
</li>
<li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><span class="cite">Michael del Castillo: <a rel="nofollow" class="external text" href="https://www.forbes.com/sites/michaeldelcastillo/2018/12/17/who-needs-verizon-blockstream-broadcasts-entire-bitcoin-blockchain-from-space/"><i>Who Needs Verizon? Blockstream Broadcasts Entire Bitcoin Blockchain From Space.</i></a><span class="Abrufdatum"> Abgerufen am 28. Juni 2019</span> (englisch).</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3ABlockstream&rft.title=Who+Needs+Verizon%3F+Blockstream+Broadcasts+Entire+Bitcoin+Blockchain+From+Space&rft.description=Who+Needs+Verizon%3F+Blockstream+Broadcasts+Entire+Bitcoin+Blockchain+From+Space&rft.identifier=https%3A%2F%2Fwww.forbes.com%2Fsites%2Fmichaeldelcastillo%2F2018%2F12%2F17%2Fwho-needs-verizon-blockstream-broadcasts-entire-bitcoin-blockchain-from-space%2F&rft.creator=Michael+del+Castillo&rft.language=en"> </span></span>
</li>
<li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><span class="cite">Pavol Rusnak: <a rel="nofollow" class="external text" href="https://github.com/prusnak/smspushtx"><i>Simple PushTX server to push Bitcoin transactions via SMS: prusnak/smspushtx.</i></a> 16. April 2019,<span class="Abrufdatum"> abgerufen am 28. Juni 2019</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3ABlockstream&rft.title=Simple+PushTX+server+to+push+Bitcoin+transactions+via+SMS%3A+prusnak%2Fsmspushtx&rft.description=Simple+PushTX+server+to+push+Bitcoin+transactions+via+SMS%3A+prusnak%2Fsmspushtx&rft.identifier=https%3A%2F%2Fgithub.com%2Fprusnak%2Fsmspushtx&rft.creator=Pavol+Rusnak&rft.date=2019-04-16"> </span></span>
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<li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="https://store.blockstream.com/"><i>Blockstream Store – Blockstream Store.</i></a><span class="Abrufdatum"> Abgerufen am 28. Juni 2019</span> (amerikanisches Englisch).</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3ABlockstream&rft.title=Blockstream+Store+%E2%80%93+Blockstream+Store&rft.description=Blockstream+Store+%E2%80%93+Blockstream+Store&rft.identifier=https%3A%2F%2Fstore.blockstream.com%2F&rft.language=en-US"> </span></span>
</li>
<li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="https://www.reddit.com/r/btc/comments/47zfzt/blockstream_is_now_controlled_by_the_bilderberg/"><i>r/btc - Blockstream is now controlled by the Bilderberg Group - seriously! AXA Strategic Ventures, co-lead investor for Blockstream's $55 million financing round, is the investment arm of French insurance giant AXA Group - whose CEO Henri de Castries has been *chairman* of the Bilderberg Group since 2012.</i></a><span class="Abrufdatum"> Abgerufen am 28. Juni 2019</span> (englisch).</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3ABlockstream&rft.title=r%2Fbtc+-+Blockstream+is+now+controlled+by+the+Bilderberg+Group+-+seriously%21+AXA+Strategic+Ventures%2C+co-lead+investor+for+Blockstream%27s+%2455+million+financing+round%2C+is+the+investment+arm+of+French+insurance+giant+AXA+Group+-+whose+CEO+Henri+de+Castries+has+been+%2Achairman%2A+of+the+Bilderberg+Group+since+2012.&rft.description=r%2Fbtc+-+Blockstream+is+now+controlled+by+the+Bilderberg+Group+-+seriously%21+AXA+Strategic+Ventures%2C+co-lead+investor+for+Blockstream%27s+%2455+million+financing+round%2C+is+the+investment+arm+of+French+insurance+giant+AXA+Group+-+whose+CEO+Henri+de+Castries+has+been+%2Achairman%2A+of+the+Bilderberg+Group+since+2012.&rft.identifier=https%3A%2F%2Fwww.reddit.com%2Fr%2Fbtc%2Fcomments%2F47zfzt%2Fblockstream_is_now_controlled_by_the_bilderberg%2F&rft.language=en"> </span></span>
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