David Benhamou

11 Flips | 1 Magazine | 1 Like | 1 Following | @davidbenhamou | Keep up with David Benhamou on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “David Benhamou”

Bitcoin's value tumbles in half after China forces top exchange to stop trading

China's largest Bitcoin exchange, BTC China, has stopped taking orders in Chinese currency because of regulatory pressure from the government, which has ordered businesses to stop accepting the virtual currency.<p>Bitcoin, which approximates cash on the internet, was driven to an all-time high of more …

At Bitcoin conference, two 'gurus' draw a crowd

LAS VEGAS — In the highly insulated world of Bitcoin devotees, a small clutch of early adopters are treated like rock stars.<p>Shortly after his panel on investment opportunities, former child star Brock Pierce (<i>The Mighty Ducks</i>) was engulfed by a throng of admirers. He wasn't surrounded for his …

Selfish Mining Simulator

Selfish-Mine<p>There is now a publicly available visual simulator for the selfish mining attack we outlined. To see the attack in action, set the "Node …

Bitcoin Block Propagation Speeds

bitcoin security selfish-mining November 25, 2013 at 03:15 PM Ittay Eyal and Emin Gün Sirer<p>Recall that we showed that what everyone thought about …

Miners spend $17 million a day for a shot at $4.4 million of bitcoin

The price of a single bitcoin, now sitting at $899, is derived from many mysterious sources: supply and demand, potential future business value, animal spirits. One factor is less widely understood: The price of bitcoin depends on the price of electricity.<p>Bitcoin are produced by “mining,” having …

Bitcoin

MELTDOWN: BITCOIN CRASHES TO $576

Currently, Bitcoin is back to the $700 level. This is still down a whopping 35%.<p>The sharp moves come in the wake of China's clampdown on the controversial digital currency.<p>Earlier this week, the People's Bank of China announced it was barring the country's banks from handling the Bitcoin. (That …

Bitfash: Shopping for Fashion Brands with Bitcoin

Yeah, there has been so many stories on Bitcoin since mid-April when it lost about half of the value over night after hitting a record high, thanks …

A Brief Look at Bitcoin Market in China

Recently we saw more Chinese joined Bitcoin market, selling mining tools, establishing exchanges, or creating new services.<p><b>Bitcoin Mining</b><p>ASICMINER …

China's central bank warns financial institutions of Bitcoin risks

China central bank People’s Bank, Chinese Ministry of Industry and Information Technology, and another three authorities in finance issued today a notice on Bitcoin, cautioning financial institutions and payments services against risks.<p>They made clear that financial institutions are not allowed …

Bank of America says Bitcoin could become a 'major means of payment'

Analysts at Bank of America Merrill Lynch issued the bank's first research report today on Bitcoin, the virtual currency that approximates cash on the internet, concluding that the currency has the potential to become a "major means of payment for e-commerce" as well as a "serious competitor to …