{"version":"1.0","provider_name":"Le Blog Note d&#039;Olivier KLEIN","provider_url":"https:\/\/www.oklein.fr\/en\/","author_name":"Olivier Klein","author_url":"https:\/\/www.oklein.fr\/en\/author\/gestion_oklein\/","title":"Cryptocurrencies, Bitcoin, and the Challenge to Official Currencies - Le Blog Note d&#039;Olivier KLEIN","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"lyA5d5X3QJ\"><a href=\"https:\/\/www.oklein.fr\/en\/cryptocurrencies-bitcoin-and-the-challenge-to-official-currencies\/\">Cryptocurrencies, Bitcoin, and the Challenge to Official Currencies<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.oklein.fr\/en\/cryptocurrencies-bitcoin-and-the-challenge-to-official-currencies\/embed\/#?secret=lyA5d5X3QJ\" width=\"600\" height=\"338\" title=\"&#8220;Cryptocurrencies, Bitcoin, and the Challenge to Official Currencies&#8221; &#8212; Le Blog Note d&#039;Olivier KLEIN\" data-secret=\"lyA5d5X3QJ\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n<\/script>\n","description":"By Olivier Klein, Professor of Economics at HEC A cryptocurrency is a digital currency whose transactions are recorded and verified by decentralized technology, often the blockchain. Bitcoin, which appeared in 2009 (notably at the very end of the global financial crisis), is the first cryptocurrency to have achieved major success. Its founding principles are decentralization, [&hellip;]","thumbnail_url":"https:\/\/www.oklein.fr\/wp-content\/uploads\/2020\/04\/oklein-partage.jpg","thumbnail_width":1200,"thumbnail_height":630}