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How to Buy Bitcoins Site de démocratisation du trading de crypto-monnaie... Why won’t Bitcoin die? I attended the first Bitcoin World Conference and Expo, held in a second-floor meeting room in a midtown Manhattan hotel, on a Saturday in August 2011. The virtual currency was powering an alternative economy worth around $81 million USD. Roughly 75 attendees, mostly long-haired programmers and pasty cypherpunks, came from as far as Switzerland. After the talks, we took a group photo. The Bitcoin economy is now worth more than $1 billion USD. Bitcoin 2013 had four speaker tracks, catered lunches, and parties with open bars. The twins took the stage around 8:30PM, by which time the crowd was so lubricated that a dull hum of conversation continued throughout the talk. “Do you guys remember Horton Hears a Who?” Evolution There’s now $45 million of Bitcoin activity per day, and it’s made some people rich. That hasn’t happened. Actually, it’s astonishing that Bitcoin is still around at all. But one night, the New York City Police Department swept in just after 1:00AM and destroyed the camp.

Cyprus: A Wake Up Call, Documentary by Bitcoin Magazine and GoldMoney By now, we are all aware of the financial calamity that has befallen Cyprus in the past three weeks. Since the deposit haircut was first announced and banks were shut down, many have lost their jobs as businesses suddenly find themselves without the means to pay anyone, others have seen their plans for retirement ruined, the economy has largely reverted to cash, and the banking sector, one of the two key pillars of Cyprus’ economy together with tourism, will never be the same again. We at Bitcoin Magazine and the team behind GoldMoney GoldMoney, however, have decided to actually go to Cyprus and see what the locals themselves have to say. We are very excited to be able to bring this to the public, as this is our first major foray into both video production and in-depth investigative journalism.

Bitcoin Commodity Exchange - CEX.IO How the Bitcoin protocol actually works Many thousands of articles have been written purporting to explain Bitcoin, the online, peer-to-peer currency. Most of those articles give a hand-wavy account of the underlying cryptographic protocol, omitting many details. Even those articles which delve deeper often gloss over crucial points. My aim in this post is to explain the major ideas behind the Bitcoin protocol in a clear, easily comprehensible way. Understanding the protocol in this detailed way is hard work. I’ll describe Bitcoin scripting and concepts such as smart contracts in future posts. It may seem surprising that Bitcoin’s basis is cryptography. My strategy in the post is to build Bitcoin up in stages. This strategy is slower than if I explained the entire Bitcoin protocol in one shot. Finally, I should mention that I’m a relative newcomer to Bitcoin. First steps: a signed letter of intent So how can we design a digital currency? On the face of it, a digital currency sounds impossible. Proof-of-work “Hello, world!” to .

Site d'actualité très complet sur le bitcoin en français.... U.S. Financial Regulator Considering Setting Rules for Bitcoin Bitcoin was born as a decentralized and unregulated currency, removed from the government's long arm of regulation. But now that the crypto-currency is going mainstream, governments are starting to react. In March, the U.S. Bart Chilton, one of five commissioners at the Commodity Futures Trading Commission (CFTC), an agency that regulates future and option markets, told the Financial Times that Bitcoin "is for sure something we need to explore." "It’s not Monopoly money we’re talking about here — real people can have real risk in these instruments, and we need to ensure that we protect markets and consumers," Chilton said. Chilton is referring to Bitcoin derivatives markets, where investors can bet on the currency's fall or rise, and speculate on its value. "Here's what I know for sure: we could regulate it if we wanted. Furthermore, regulating a digital currency that has no central authority overseeing and controlling it might be impossible. Image via George Frey/Getty Images