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ShapeShift, A Cool Cryptocurrency Converter, Clinches $1.6 Million In Cash

Do you need Clams? Nucoin? ShapeShift.io is here to help. This oddly simple system is a universal and anonymous cryptocurrency converter created by one of the pioneers in bitcoin, Erik Voorhees. How does it work? You request a certain cryptocurrency – Litecoin, for example – and give the service a …

Cryptocurrency

Google Ventures-Backed Bitcoin Exchange Buttercoin Is Shutting Down

Buttercoin, a bitcoin exchange startup backed by Y Combinator and Google Ventures, is closing its doors this month after failing to raise new investment.<p>“Buttercoin will be turning off our service on April 10th at 11PM Pacific,” the company said in a note on its website. “Be sure to move your …

Cryptocurrency

A Rare Look Inside A Massive Bitcoin Mine

Bitcoin mining is not a pretty business. It requires lots of specialized servers that are essentially unusable for normal computing and lots of cooling. But when you bring thousands of miners together in the same room, things really get ugly.<p>Motherboard has some fascinating footage of a bitcoin …

Bitcoin

The Bootstrapper’s Guide To Bitcoin Remittances

<b>Editor’s note:</b> <i>Luis Buenaventura is a co-founder and head of product at Rebit.ph, a bitcoin remittance startup wholly owned and operated by Satoshi Citadel Industries in the Philippines.</i><p>There’s a lot of rhetoric about bitcoin and its impact on the $430 billion international remittance industry. One …

Bitcoin

Colu Aims To Bring Blockchain Technology Everywhere

Since its inception, investors have looked at the blockchain technology that powers Bitcoin’s cryptocurrency as a new platform to bring a new level of trust to real world transactions.<p>Now, Colu, a Tel Aviv-based startup has launched to develop a platform to make that vision a reality. Colu is …

Bitcoin

Up Close With Coinbase Exchange

It’s been a few days since Coinbase launched its official Exchange, a dashboard for active bitcoin traders that lets you buy and sell based on real-time pricing. I thought I’d sit down and put it through its paces and see just how usable this tool was for the average BTC fan, as well as folks who …

Cryptocurrency

Coinbase Is Opening The First Regulated Bitcoin Exchange In The U.S.

Fresh from scoring a massive $75 million funding round, bitcoin payment firm Coinbase has revealed that it will open the first regulated bitcoin exchange in the U.S. on Monday.<p>The company, which added the New York Stock Exchange and USAA to its list of investors last week, told the Wall Street …

Bitcoin

Bitstamp Suspends Its Service After Hackers Snatch $5M In Bitcoins (Now Reopened)

<b>Update:</b> Bitstamp resumed business on Friday January 9. The company said it has installed new hardware “from a completely secure backup of our code and data”.<p>The year is but five days old but already we have our first bitcoin hacking story of 2015 after Bitstamp, a Slovenia-based exchange that …

Bitcoin

Bitcoin Slumps

2015 has not been kind to bitcoin thus far. The cryptocurrency, which has endured a stiff price decline since its late-2013 heights, is back below the $300 mark. Bitcoin’s total transaction volume, as measured by Blockchain.info, has also slipped in recent days.<p>Theories abound about why its price …

Cryptocurrency

Reddit Announces RedditNotes, A Way To Share Equity With Readers

Reddit, the world’s favorite repository for funny and/or pornographic images (and wide-ranging discussions on almost any topic), has announced a RedditNotes initiative, a method to give equity to the site’s readers using a lottery method.<p>The 950,000 notes will be given away at random to folks who …

After A Difficult 2014, Bitcoin Hopes For A Brighter New Year

Bitcoin spiked to north of $1,000 in late 2013, before starting a long decline in the current year. After some optimistic fluctuation, it has landed in a mid-$300 trading range that the virtual currency can’t seem to shake.<p>Gone, for now it seems, are the go-go days of bitcoin heading straight north.<p>…

Blockstream

Blockchain is complex and blocks can be hard to find, but fear not, the team at Blockstream is always working hard to research new techniques for …

Authentication

A Bitcoin Battle Is Brewing

Did you know the Bitcoin community is riven by tension, drama, competing agendas, and at least two starkly different visions of our economic future? That even as major banks who thought of Bitcoin as snake oil re-assess its blockchain technology as a major breakthrough, and smart money pours into …

Bitreserve Brings Bitcoin To The Gold Standard

The bitcoin-based financial services company Bitreserve is merging one of the newest innovations in currency with the world’s oldest.<p>Through the institutional precious metals trading house Gold Bullion International, Bitreserve has created a new gold standard, linking its bitcoin currency exchange …

PayPal’s Bitcoin Integration And The Future Of Digital Currency Adoption

<b>Editor’s note:</b> <i>Ken Miller is the COO of Gem. Previously he was VP of risk management at PayPal executive and adviser to Square.</i><p>Recently, PayPal announced several partnerships aimed towards enabling certain PayPal merchants to be able to accept bitcoin as a form of payment from their customers. This …

U.S. Marshals Service Is Putting 50,000 Bitcoins Up For Sale

The U.S. Marshals Service said today that it will auction off another 50,000 bitcoins that were seized last fall from a computer belonging to Ross Ulbricht, the alleged owner of the online black-market bazaar, Silk Road. This is the second auction of bitcoins related to that arrest – in July, an …

Bitcoin Startup Coinbase Is Raising Another $50 Million

Bitcoin startup Coinbase is seeking to raise another round of funding, which could add $50 million in new capital before it’s finished. According to sources, however, the company has faced headwinds in the fundraising process that may limit the total amount raised.<p>Sources tell us Coinbase is …

Coinbase’s Vault Goes Multi-Signature For Added Security

Coinbase, the Andreessen Horowitz-backed Bitcoin wallet and merchant processing platform with just shy of 2 million wallets, is jumping on a big trend in security for holding the crypto-currency.<p>They’re adding multi-signature technology to their vault product, which is designed with long-term, …

Bitcoin 2.0: Sidechains And Ethereum And Zerocash, Oh My!

Strange, interesting, and wildly ambitious things are afoot in the world of Bitcoin and blockchains. I give you Zerocash, a completely anonymous currency; Ethereum, a blockchain platform designed to decentralize much of the Internet; and <i>sidechains</i>, a proposal to accelerate the evolution of Bitcoin …

Bitcoin Breaks $400

Bitcoin is currently hovering at around $400 on Bitstamp, a rise of over $100 since last week’s doldrums. While there doesn’t seem to be a direct reason for the rise, BTC fans are pointing to the documentary called The Rise And Rise of Bitcoin as improving general sentiment.<p>Public sentiment is one …

Blockchain Goes From Bootstrapping To Scoring $30 Million

Here comes another mega funding round in the bitcoin space. The world’s largest bitcoin wallet provider, Blockchain, has been a bootstrapped startup so far. But the startup eventually accepted VC money, raising a little bit over $30 million from Lightspeed Venture Partners, Wicklow Capital and …

Bitcoin Wallet And Platform Coinbase Opens To Europe

In a really big deal for San Francisco-based Coinbase, one of the world’s leading Bitcoin wallets and merchant processing platforms, the startup is opening its doors to European customers in 13 countries.<p>This will be its long-awaited first foray outside of the U.S. The company is one of the biggest …

Korean Bitcoin Exchange Korbit Raises $3M Series A

Korean bitcoin exchange Korbit has raised $3 million in Series A funding led by SoftBank Ventures Korea and Pantera Capital, with participation from BAM Ventures, and returning investors Bitcoin Opportunity Corp., Tim Draper, Pietro Dova, and Strong Ventures. The startup told TechCrunch that it …

San Francisco Open Exchange Aims To Be The E-Trade Of Bitcoin

Y Combinator-backed startup San Francisco Open Exchange (SFOX) is an online trading platform that helps people find the best bitcoin prices at various exchanges. In other words, it would like to help you buy, sell and invest in bitcoin exchanges kinda like and investor buys and sells stock on …

Coinbase Acquires Blockchain Explorer Blockr.io

A small consolidation wave in the Bitcoin space continues as bigger, better-funded companies scoop up teams of talented designers and engineers.<p>Coinbase, the Andreessen Horowitz-backed Bitcoin wallet and merchant processing company, completed another talent acquisition today with the purchase of …

Onename.io Aims To Streamline Bitcoin Transactions

If you wanted to send me bitcoin right now you could either type in ‘1JPrpxRagtzuzY4KWCNV2hBhybqyaTrVwA’ or just look for “johnbiggs” on Onename. That’s what two Princeton grads are hoping you’ll do, anyway.<p>Onename.io was founded by Muneeb Ali and Ryan Shea, two engineers who thought they could fix …

An Interview With Josh Garza, CEO Of GAW Miners, On His $1 Million Purchase Of BTC.com

On Monday GAW Miners CEO Josh Garza announced the purchase of BTC.com for $1 million. The domain, which now points to a landing page, is to be a beachhead on the war to make bitcoin a household name and, like sex.com before it, the purchase garnered a lot of attention.<p>But why BTC.com? And why $1 …

KryptoKit Launches RushWallet: An Instant, Cross-Platform Bitcoin Wallet

In an effort to help widen bitcoin’s reach and create a simpler experience when dealing with the online currency, KryptoKit, makers of the bitcoin wallet browser extension, launched RushWallet, a new easy-to-use bitcoin wallet that works on all web browsers and mobile devices and unlike other …

Blockchain Bitcoin Wallet Is Back In The Apple App Store

Since Apple pulled Bitcoin wallets from the App Store in January, cryptocurrency fans have been at once calling for the ban to be rescinded and bad-mouthing Cupertino. Now, seven months later, Apple has decided to allow Blockchain.info to publish their app, a very basic – but useful – bitcoin app …

Google Adds Bitcoin Price Conversions

One fun Google trick is the ability to type in “5 Euro in USD” and get an acceptably accurate currency conversion in a few seconds. Now, however, you can get your BTC on by simply typing “price of bitcoin” or “X bitcoin to euro.” The feature rolled out yesterday as a reaction to Bing’s addition of …