{"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 Questioning of Official Currencies - Le Blog Note d&#039;Olivier KLEIN","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"DlZlLjS3wH\"><a href=\"https:\/\/www.oklein.fr\/en\/cryptocurrencies-bitcoin-and-the-questioning-of-official-currencies\/\">Cryptocurrencies, Bitcoin and the Questioning of Official Currencies<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.oklein.fr\/en\/cryptocurrencies-bitcoin-and-the-questioning-of-official-currencies\/embed\/#?secret=DlZlLjS3wH\" width=\"600\" height=\"338\" title=\"&#8220;Cryptocurrencies, Bitcoin and the Questioning of Official Currencies&#8221; &#8212; Le Blog Note d&#039;Olivier KLEIN\" data-secret=\"DlZlLjS3wH\" 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","thumbnail_url":"https:\/\/www.oklein.fr\/wp-content\/uploads\/2025\/07\/telos.jpg","thumbnail_width":280,"thumbnail_height":109,"description":"Cryptocurrencies, and Bitcoin in particular, are part of a major contemporary debate on the nature of money and the role of institutions. Cryptocurrencies indeed represent an attempt to found an alternative to traditional currencies. To properly understand what these new assets propose, and what differentiates them from official currencies, we must rethink the essence of [&hellip;]"}