Showing posts with label Bitcoin. Show all posts
Showing posts with label Bitcoin. Show all posts

Monday, 2 September 2013

News junkie's open-source project links Bitcoin with publishers

Ankur Nandwani is a news junkie who keeps hitting pay walls. He would pay for content, but not for a subscription.

Nandwani, 27, merged his interest in news with Bitcoin, a virtual currency that many people think will change the future of payments. With co-founders Bo Li and Valerie Chao, he developed Bitmonet, an open-source tool that lets publishers accept micropayments in Bitcoin for news stories.

Bitmonet is just a side project for Nandwani, who has a day job as a senior software engineer in San Francisco. He started analyzing Bitcoin about six months ago and wanted to grow interest in the virtual currency.

"It's all about encouraging bitcoin adoption," Nandwani said. "I think in the early stages of the bitcoin ecosystem.....it's better to increase bitcoin adoption. We can think of making money later."

News publishers have struggled to strike the right balance between generating online revenue and not alienating readers -- already bouncing from one free online news outlet to another -- with pay walls. Many tease users with free stories and gently nudge them to paid subscriptions when they hit a limit.

But charging one-off fees for news stories is a hassle: users don't want to create an account and enter their credit card details for a single news story. It's easier just to move on.

Bitmonet leverages Bitcoin's strength as a digital substitute for cash. In a demonstration on Bitmonet's website, clicking on a story brings up a pop-up window offering a news story for US$0.10, a one-hour pass for $0.15 or a day-long pass for $0.20.

The one-hour pass costs 0.0012 of a Bitcoin. Clicking the "Pay with Bitcoin" button launches Bitcoin wallet software on a person's computer. Web-based wallet software can be used by copying the payment address, Nandwani said.

The transaction is painless: users don't have to enter their financial details or create an account with the publisher.

Bitcoin's peer-to-peer network uses a system of computers called miners to cryptographically verify that a transaction is legitimate. Usually, a transaction needs to garner six "confirmations" before it is considered complete, which at times can take up to three hours.

But Nandwani said merchants can accept as low as one confirmation to let people read the story as soon as possible.

If users choose to buy time-based access to a site, they will have to remember to keep their cookies, which are information files retained by a web browser that are used by websites to remember certain user information.

It's a small sacrifice, but one to keep in mind since many people configure their browsers to delete their cookies for privacy reasons. Nandwani said "we are trying to maintain a balance between creating an account and keeping it frictionless."

Bitmonet is configured now to use BitPay as a payment processor, but it can use different ones. BitPay, based in Atlanta, specializes in processing transactions for merchants. BitPay converts Bitcoin revenue to cash and wires it daily to a merchant's bank account.

Nandwani said Bitmonet plans to add a WordPress plugin in the coming weeks for micropayments on that publishing platform. Other development plans include creating SDKs (software development kits) for Android and iOS that would allow Bitmonet to be used for other things, such as virtual goods, he said.

Send news tips and comments to jeremy_kirk@idg.com. Follow me on Twitter: @jeremy_kirk


View the original article here

Thursday, 29 August 2013

Srsly? Bitcoin, selfie added to Oxford dictionary

IDG News Service - What do bitcoin, emoji and selfies have in common? They're all now official words, at least according to the Oxford dictionary.

More than 40 buzzy words with fashion as well as technology influences -- like, srsly -- have been added to Oxford's online site, the dictionary announced Wednesday.

Srlsy, for example, is Internet slang for seriously. Some of the newly defined words, like selfie, speak to the growth of social media platforms like Instagram, Snapchat and Facebook.

"The additions may have only just entered the dictionary, but we've been watching them for a while now, tracking how and where they are used," Oxford said in a blog post.

A selfie, now according to Oxford, is "a photograph that one has taken of oneself, typically one taken with a smartphone or webcam and uploaded to a social media website."

Similarly self-absorbed people must be doing something right -- "me time" was also added as a word.

Me time, according to Oxford, is "time spent relaxing on one's own as opposed to working or doing things for others, seen as an opportunity to reduce stress or restore energy."

While many of the added words are playful and in some cases quite complicated, most of their definitions are still fairly straightforward. The dictionary defines bitcoin as "a digital currency in which transactions can be performed without the need for a central bank."

An emoji, meanwhile, is "a small digital image or icon used to express an idea or emotion in an electronic communication," according to Oxford.

Elon Musk, the Tesla Motors CEO who is looking to colonize Mars through his other company SpaceX, would be happy to know that "space tourism" was added too.

Among the fashion terms making their debut in the online dictionary are flatform, geek chic and jorts. Jorts, the dictionary points out, is a good example of a portmanteau, or a word that combines two words in which part of one or both words is omitted -- in this case, "jeans" and "shorts."

LOL and OMG, two acronyms already defined by Oxford, have some new initialized friends too, in BYOD and MOOC.

Some of the added words, such as "unlike" or "buzzworthy," appear to be long overdue.

But Greg Sterling, a tech industry analyst with Opus Research, says Oxford moved too soon in adding some of the technology-inspired slang terms like selfie and "phablet."

"There should be more proven longevity in the words before they're formally incorporated," he said.

Oxford said it had been keeping an eye on the words "selfie" and "phablet" since at least last year, but that's still too fast, Sterling argued.

"Not every expression on the street or to come out of marketing or social media needs to go in the dictionary," he said.

Zach Miners covers social networking, search and general technology news for IDG News Service. Follow Zach on Twitter at @zachminers. Zach's e-mail address is zach_miners@idg.com

Reprinted with permission from IDG.net. Story copyright 2012 International Data Group. All rights reserved.

View the original article here

Bitcoin offers privacy—as long as you don't cash out or spend it

On the surface, Bitcoin seems to be a great way to hide cash. Actually, it’s a terrible way to launder money.

That’s the conclusion of a new academic study that analyzed Bitcoin’s blockchain, or the public ledger that records bitcoin transactions. The ledger shows how bitcoins move from one person to another, represented by 34-character alphanumeric addresses.

It’s a sea of numbers without names. But researchers from the University of California at San Diego and George Mason University found it is a lot harder to convert bitcoins to cash—or spend the bitcoins with a service—and stay anonymous due to the ledger.

Most bitcoin users interact with a service to buy or sell the virtual currency. These days, most of those services want to know exactly who they’re dealing with, especially as regulators around the world take an increasing interest in bitcoin.

Srsly? Bitcoin, selfie added to Oxford online dictionary

What do bitcoin, emoji, and selfies have in common? They’re all now official words, at least according to the Oxford online dictionary.

More than 40 buzzy words with fashion as well as technology influences—like, srsly—have been added to Oxford’s online site, the dictionary announced Wednesday. To be clear, the words have not been added to the Oxford English Dictionary, only to the Oxford Dictionaries Online.

Srlsy, for example, is Internet slang for seriously. Some of the newly defined words, like selfie, speak to the growth of social media platforms like Instagram, Snapchat and Facebook.

“The additions may have only just entered the dictionary, but we’ve been watching them for a while now, tracking how and where they are used,” Oxford said in a blog post.

A selfie, now according to Oxford, is “a photograph that one has taken of oneself, typically one taken with a smartphone or webcam and uploaded to a social media website.”

Similarly self-absorbed people must be doing something right—“me time” was also added as a word.

Vine gets selfiesSusie OchsA classic selfie

Me time, according to Oxford, is “time spent relaxing on one’s own as opposed to working or doing things for others, seen as an opportunity to reduce stress or restore energy.”

While many of the added words are playful and, in some cases, quite complicated, most of their definitions are still fairly straightforward. The dictionary defines bitcoin (shown at top) as “a digital currency in which transactions can be performed without the need for a central bank.”

An emoji, meanwhile, is “a small digital image or icon used to express an idea or emotion in an electronic communication,” according to Oxford.

Elon Musk, the Tesla Motors CEO who is looking to colonize Mars through his other company SpaceX, would be happy to know that “space tourism” was added too.

Among the fashion terms making their debut in the online dictionary are flatform, geek chic and jorts. Jorts, the dictionary points out, is a good example of a portmanteau, or a word that combines two words in which part of one or both words is omitted—in this case, “jeans” and “shorts.”

LOL and OMG, two acronyms already defined by Oxford, have some new initialized friends too, in BYOD and MOOC.

Some of the added words, such as “unlike” or “buzzworthy,” appear to be long overdue.

But Greg Sterling, a tech industry analyst with Opus Research, says Oxford moved too soon in adding some of the technology-inspired slang terms like selfie and “phablet.”

“There should be more proven longevity in the words before they’re formally incorporated,” he said.

Oxford said it had been keeping an eye on the words “selfie” and “phablet” since at least last year, but that’s still too fast, Sterling argued.

“Not every expression on the street or to come out of marketing or social media needs to go in the dictionary,” he said.

Follow TechHive on Tumblr today.


View the original article here

Tuesday, 27 August 2013

US regulators explore rules for Bitcoin

IDG News Service - A Bitcoin trade group met with representatives of several U.S government agencies Monday as regulators debate whether the online currency should comply with currency rules.

Bitcoin critics have raised questions about the ability to anonymously use the online currency and launder money through the service. The agenda of Monday's meeting, with the Bitcoin Foundation and agencies including the FBI, the Department of the Treasury and the Federal Deposit Insurance Corp., was to help regulators and law enforcement officers better understand Bitcoin and distributed finance, said Patrick Murck, general counsel of the foundation.

The foundation wants to help the agencies "make better decisions and develop new methodologies for identifying and interceding illicit activity," Murck said in an email. "Bitcoin and distributed finance is here to stay and our preferred path forward is a cooperative one, where we all can help ease each other's transition into an inclusive and distributed global financial system."

Representatives of the FBI and FDIC declined to comment on the meeting. A Treasury Department spokeswoman didn't return an email seeking comment.

The foundation views the meeting as the beginning of a conversation about "the appropriate role of government and law enforcement in this emerging space," Murck added.

Federal regulators seem to be taking a "responsible approach" to working with the industry, he said. State regulators, however, "seem more interested in rushing to conclusions and tripping over themselves to be first-movers without regard to the unintended consequences for the industry," he added.

Earlier this month, Sens. Thomas Carper, a Delaware Democrat, and Tom Coburn, an Oklahoma Republican, said their committee, the Senate Homeland Security and Government Affairs Committee, has begun an inquiry into the "threats and risks" of virtual currency.

"The expansive nature of this emerging technology demands a holistic and whole-government approach in order to understand an provide a sensible regulatory framework for their existence," the senators said in a letter to Janet Napolitano, U.S. secretary of homeland security.

The Bitcoin Foundation's goal is to educate decision-makers about the currency and to standardize and protect Bitcoin worldwide.

Grant Gross covers technology and telecom policy in the U.S. government for The IDG News Service. Follow Grant on Twitter at GrantGross. Grant's e-mail address is grant_gross@idg.com.

Reprinted with permission from IDG.net. Story copyright 2012 International Data Group. All rights reserved.

View the original article here

US regulators explore rules for Bitcoin

A Bitcoin trade group met with representatives of several U.S government agencies Monday as regulators debate whether the online currency should comply with currency rules.

Bitcoin critics have raised questions about the ability to anonymously use the online currency and launder money through the service. The agenda of Monday’s meeting, with the Bitcoin Foundation and agencies including the Federal Bureau of Investigation, the Department of the Treasury and the Federal Deposit Insurance Corp., was to help regulators and law enforcement officers better understand Bitcoin and distributed finance, said Patrick Murck, general counsel of the foundation.

The foundation wants to help the agencies “make better decisions and develop new methodologies for identifying and interceding illicit activity,” Murck said in an email. “Bitcoin and distributed finance is here to stay and our preferred path forward is a cooperative one, where we all can help ease each other’s transition into an inclusive and distributed global financial system.”

Representatives of the FBI and FDIC declined to comment on the meeting. A Department of Treasury spokeswoman didn’t return an email seeking comment.

The foundation views the meeting as the beginning of a conversation about “the appropriate role of government and law enforcement in this emerging space,” Murck added.

Federal regulators seem to be taking a “responsible approach” to working with the industry, he said. State regulators, however, “seem more interested in rushing to conclusions and tripping over themselves to be first-movers without regard to the unintended consequences for the industry,” he added.

Earlier this month, Senators Thomas Carper, a Delaware Democrat, and Tom Coburn, an Oklahoma Republican, said their committee, the Senate Homeland Security and Government Affairs Committee, has begun an inquiry into the “threats and risks” of virtual currency.

“The expansive nature of this emerging technology demands a holistic and whole-government approach in order to understand an provide a sensible regulatory framework for their existence,” the senators said in a letter to Janet Napolitano, U.S. secretary of homeland security.

The Bitcoin Foundation’s goal is to educate decision-makers about the currency and to standardize and protect Bitcoin worldwide.

Grant Gross covers technology and telecom policy in the U.S. government for The IDG News Service.
More by Grant Gross, IDG News Service


View the original article here

Monday, 26 August 2013

Bitcoin is legal, let it evolve into its role, researchers urge

As the tech industry grapples with the potential benefits and risks of the digital currency Bitcoin, policymakers should take care not to impose heavy-handed restrictions on an innovative platform that could transform global commerce, a pair of researchers at George Mason University's Mercatus Center argue in a new policy paper.

As a starting point, the researchers suggest that the proper way to evaluate Bitcoin is "not necessarily as a replacement for traditional currencies, but rather as a new payments system," and acknowledge that it "exists in something of a legal gray area."

"This is largely the case because Bitcoin does not exactly fit existing statutory definitions of currency or other financial instruments or institutions, making it difficult to know which laws apply and how," write Mercatus Center researchers Jerry Brito and Andrea Castillo.

The researchers credit Bitcoin for achieving, at a large scale, what no other payments system has been able to do: provide direct, trusted exchanges of currency over a distributed peer-to-peer network that keeps track of debits and credits.

That network, they note, serves the same function of trusted third parties like PayPal or MasterCard that act as ledger keepers, ensuring through a form of public-key cryptography that the value of an electronic payment is deducted from the payer's account and transferred to the payee's.

That absence of an intermediary to verify and process transactions could make Bitcoin a far more economical platform for global payments, the researchers suggest, imagining the currency put to use for micropayments, improving access to capital and other innovative applications.

Andrea CastilloMercatusAndrea Castillo

"On the other hand, Bitcoin's decentralized nature also presents opportunities for crime," they write. "The same qualities that make Bitcoin attractive as a payment system could also allow users to evade taxes, launder money and trade illicit goods."

"The challenge, then," they add, "is to develop processes that diminish opportunities criminality while maintaining the benefits that Bitcoin can provide."

On the most fundamental question—whether Bitcoin is even legal—the researchers conclude that it probably is, given the U.S. Constitution's ban on states issuing their own currency does not extend to private currencies.

Brito and Castillo explore a variety of avenues where U.S. regulators could establish oversight over Bitcoin, including through anti-money laundering laws administered by the Treasury Department, at the Commodities Futures Trading Commission or under the laws that govern money transmitters like PayPal.

Ultimately, Brito and Castillo conclude with a series of recommendations for policymakers outlining a cautious approach that would seek to curb the malicious use of the service without overly restricting the development of "a revolutionary technical achievement." That includes a warning against the kneejerk reaction to crack down on the Bitcoin in response to media reports that have linked it to online criminal activity.

Jerry BritoMercatusJerry Brito

"[A]s a technology, Bitcoin is neither good nor bad; it is neutral. Paper dollar bills, like bitcoins, can be used in illicit transactions, yet we do not consider outlawing paper bills. We only prohibit their illicit use. Furthermore, there is only anecdotal evidence about the extent to which bitcoins are utilized in criminal transactions. It would be wise to put the criminal use of the technology in perspective alongside its legitimate uses. As the bitcoin economy grows, legitimate uses of bitcoins will likely dwarf criminal transactions, just as we see with paper dollar bills."

Further, because Bitcoin, like BitTorrent, is a distributed peer-to-peer network, rather than a single company, Brito and Castillo argue that it "is virtually impossible to shut down," and that a blanket prohibition on the service would foreclose on productive, legitimate uses of the service, while ensuring "that criminals alone will use the technology."

Instead, they advise that regulators at the Financial Crimes Enforcement Network work with white-hat developers and other Bitcoin users to a clarify the agency's guidance on the service.

More broadly, they suggest that regulators should develop a new classification for Bitcoin that would dispel the confusion surrounding a platform that "does not comfortably fit any existing classification or legal definition."

The report comes amid growing concern among some lawmakers that the virtual currency operates outside of the scope of conventional regulations, and that it is used to facilitate the flow of illicit commerce on the Web.

Two years ago, Senators Chuck Schumer (D-New York) and Joe Manchin (D-West Virginia) wrote to Attorney General Eric Holder and Michele Leonhart, the administrator of the Drug Enforcement Administration, asking them to take action against the online drug marketplace Silk Road, which uses Bitcoin as a currency along with the anonymizing software Tor.

Earlier this month, the chairman and ranking member of the Senate Homeland Security and Governmental Affairs Committee wrote to DHS Secretary Janet Napolitano expressing concern about the rise of digital currencies that operate without and backing from a central bank or government entity.

"They can be sent nearly anonymously, leaving little or no trail for regulators and enforcement agencies," Tom Carper (D-Delaware) and Tom Coburn (R-Oklahoma) wrote.

Adam Crowe

"The speed at which they can be sent globally and the potentially profitable investments that can be made trading virtual currency have made them attractive to entrepreneurs and investors alike. However, their near anonymous and decentralized nature has also attracted criminals who value few things more than being allowed to operate in the shadows," they added.

Carper and Coburn cite a case that the Securities and Exchange Commission brought last month against a Texas man who was charged with operating a Ponzi scheme based on Bitcoin, as well as the Government Accountability Office's call for the IRS to expand its tax guidance on virtual currencies, along with other government activity in the space.

The homeland security committee is in the midst of an ongoing inquiry into the uses and implications of virtual currency.

"The expansive nature of this emerging technology demands a holistic and whole-government approach in order to understand and provide a sensible regulatory framework for their existence. As with all emerging technologies, the federal government must make sure that potential threats and risks are dealt with swiftly; however, we must also ensure that rash or uninformed actions don't stifle a potentially valuable technology," Carper and Coburn wrote.

Given the use of the public-key technology, the George Mason researchers take issue with the description of Bitcoin as an anonymous payment service. Because each transaction is tied to a public key, and therefore is marked in the overall record of Bitcoin activity, known as the block chain, they contend that the transactions are properly described as pseudonymous, rather than anonymous, like a basic cash transaction.

"Tying a real-world identity to a pseudonymous Bitcoin address is not as difficult as some might imagine," Brito and Castillo write, pointing out that users' IP addresses and other identifying information are often recorded in the process of making a Bitcoin transaction or exchanging bitcoins for dollars.

The researchers also note the severe fluctuations in value that Bitcoin has seen, with a single unit rising from its initial value of pennies to a peak of more than $260 in April 2013. Citing an estimate from the end of May, the researchers peg the total market capitalization of the Bitcoin economy at more than $1 billion.

That volatility could pose a risk to newcomer investors, the researchers acknowledge, though they suggest that Bitcoin's enduring merit might be to serve as a medium of exchange, rather than a vehicle for storing wealth, thus insulating users from the fluctuations in value.

"Customers who purchase Bitcoins to make a one-time purchase don't care about what the exchange rate will look like tomorrow," the authors write. "They simply care that Bitcoin can lower transaction costs in the present. Bitcoin's usefulness as a medium of exchange might explain why the currency has grown more popular among merchants in spite of its price volatility."

Follow TechHive on Tumblr today.

Kenneth Corbin is a Washington, D.C.-based writer who covers government and regulatory issues for CIO.com.
More by Kenneth Corbin, CIO


View the original article here

Thursday, 22 August 2013

Bitcoin wallet service to issue refunds after users' funds stolen

A widely used Bitcoin wallet service plans to issue refunds to people who saw their bitcoins stolen as a result of a weakness in its application.

Blockchain.info, which has a Web-based service called My Wallet, has also upgraded its application after finding a vulnerability similar to one discovered earlier this month in some Bitcoin wallet programs running on the Android mobile OS.

“Likely if you have been affected by this problem your coins will have been taken already,” a Blockchain.info official wrote on the Bitcointalk.org forum. “All affected users will be refunded in full.”

The number of affected users is small, said Roger Ver, who is an investor in Blockchain.info, via email. Blockchain.info expects to refund around 50 BTC or $5000, he said.

Interest in Bitcoin has surged since its debut just four years ago. The system offers a low-cost way to transmit virtual currency over the Internet, and many companies and entrepreneurs are working to solve concerns around how to safeguard bitcoins from hackers.

Blockchain.info’s My Wallet uses a browser extension that encrypts a person’s Bitcoin wallet on their computer before it is sent and stored on its servers.

On Tuesday, Blockchain.info upgraded its browser extensions for Chrome and Firefox and its Mac OSX client after it was found a random number generator wasn’t working securely in some cases, potentially exposing people’s bitcoin stashes to theft.

Random numbers are used to sign transactions performed over Bitcoin’s peer-to-peer network as part of its public key cryptography system. If duplicate random number values are used to sign more than one transaction, it may be possible for an attacker to figure out a person’s private signing key and sweep their bitcoins away.

The issue came to light after one user reported on Bitcointalk.org that 1.8 bitcoins—worth around $218 as of Wednesday morning according to Mt. Gox’s market price—were stolen.

The user speculated that Blockchain.info or Firefox had a weakness in code that generates random numbers, similar to the problem found in Android Bitcoin clients earlier this month.

Several Bitcoin clients that used a random number generator component within Android were patched after it was found it occasionally repeated random numbers. Google also issued a patch.

A Blockchain.info official wrote on the forum that My Wallet users on Firefox could be particularly vulnerable. Users should upgrade their My Wallet browser extension to the latest versions, which for Chrome is v2.85, for Firefox is version 1.97 and for Mac clients is version 0.11.

The official also advised that people who only use Blockchain.info’s web interface “should clear their browsers cache before next login.”

Bitcoin addresses—which are used by people to send and receive bitcoins—that may be affected have been listed on Bitcointalk.org.


View the original article here

Monday, 19 August 2013

Bitcoin can be used for private transactions, German government says

The German Federal Ministry of Finance said on Monday that Bitcoin is not a full-fledged currency but that it is permissible to use it in private transactions.

But if companies want to use Bitcoins for commercial transactions, they need the permission of the Federal Financial Supervisory Authority (BaFin), said Martin Chaudhuri, ministry spokesman.

Bitcoin is a digital currency that can be exchanged electronically. But like other virtual currencies it lacks the backing of a government entity or a central bank.

In Germany, Bitcoin is not seen as a real currency by the Ministry of Finance, said Chaudhuri. Bitcoin rather falls under the classification "Rechnungseinheiten als Finanzinstrument" which is a unit of account, he said.

The government clarified its position on Bitcoin at the request of a member of parliament (MP) a couple of weeks ago, said Chaudhuri.

While Bitcoin can be legally used for private transactions in Germany, the Ministry also has the position that the virtual currency has many disadvantages, according to Chaudhuri, noting above all Bitcoin's instability. But because Bitcoins don't have a great impact on the market due to their limited use, the risks are also limited, he added.

Along similar lines, the European Central Bank (ECB) concluded last October that at present, virtual currency schemes such as Bitcoin do not pose a risk to price stability, provided that money creation continues to stay at a low level.

Though virtual currencies tend to be inherently unstable, at the moment they cannot jeopardize financial stability due to their limited connection with the real economy, their trading low volume and lack of wide user acceptance, the ECB said at the time.

But because they are currently not regulated and are not closely supervised, participation in virtual currencies exposes users to credit, liquidity, operational and legal risks, according to the ECB. These currencies could also represent a challenge for public authorities because of the legal uncertainty, it added. And they can also be used by criminals, fraudsters and money launderers to enable their legal activities, the ECB noted.

While the impact of the risks is relatively small, the ECB will periodically revisit developments in virtual currencies to reassess risks.

A similar risk assessment is underway in the U.S. where last week it was revealed that a prominent U.S. Senate committee has launched a formal inquiry to investigate criminal activity and other risks tied to the use of virtual currencies like Bitcoin.

Loek Essers focuses on online privacy, intellectual property, open-source and online payment issues.
More by Loek Essers, IDG News Service


View the original article here