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<p>[QUOTE=&quot;kaparthy, post: 1027657, member: 57463&quot;]OK, now that we have your attention...</p><p><br /></p><p>Modern (post 2000; maybe earlier) scanners, printers, copiers, have hardware chips in them (maybe firmware), that recognize symbols placed in paper money by agreements among the central banks (Federal Reserve, Bank of England, etc., etc.) and their printers (Bureau of Engraving and Printing, Thomas De La Rue, etc.).</p><p><br /></p><p>Also, your kidding had a very real element:&nbsp; any modern mulit-function printer/scanner connected to the internet can place and receive independent communication.&nbsp; It is rumored that the USA did this to both Iraq and Iran: hit them with a cyber-strike through their printers.&nbsp; </p><p><br /></p><p>If you search here on CoinTalk for &quot;digimarc&quot; and for &quot;eurion&quot; you will find other threads.&nbsp; These two contain useful information, as well.</p><p><a href="http://www.cointalk.com/t49367/" class="internalLink ProxyLink" data-proxy-href="http://www.cointalk.com/t49367/">http://www.cointalk.com/t49367/</a></p><p><a href="http://www.cointalk.com/t35571/" class="internalLink ProxyLink" data-proxy-href="http://www.cointalk.com/t35571/">http://www.cointalk.com/t35571/</a></p><p><br /></p><p>I am planning a talk for ANA conventions.&nbsp; Ahead of that, I would like to contact the actual doers and nominal &quot;experts&quot; here -- tough word to live up to, I know -- to chase down the facts.&nbsp; Thanks, guys.[/QUOTE]</p><p><br /></p>

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