Wednesday, August 19, 2015

The Future of Smart Contracts: Positive Social Innovation or Criminal Activity?

smart-contract

Smart contracts, a feature of “Bitcoin 2.0” technologies such as Ethereum, could empower criminals with sophisticated trustless collaboration means, the prestigious MIT Technology Review reports.

Cornell University professors Ari Juels and Elaine Shi, with University of Maryland researcher Ahmed Kosba, present several cyber-crime scenarios enabled by smart contracts in the recently published paper “The Ring of Gyges: Using Smart Contracts for Crime.”

The Ring of Gyges is a mythical magical ring mentioned in Plato’s Republic which grants its owner the power to become invisible at will. Of course, criminals wearing the invisibility ring would commit all sorts of crimes beyond the reach of law enforcement.

Shi joined the Computer Science Department at Cornell University in August 2015. Shi was recently awarded a large National Science Foundation (NSF) research grant for cyber-security research, Bitcoin Magazine reported in July. Shi, formerly at the University of Maryland and the Maryland Cybersecurity Center, researches cryptocurrencies and “smart contracts” – computer programs that can automatically execute the terms of a contract.

“We illuminate the extent  to  which  these  new  cryptocurrencies, by  enabling  criminal  activities  to  be  conducted  anonymously and  with  minimal  trust  assumptions,  may  fuel  new  criminal ecosystems,” note the researchers. “Specifically, we show how  what  we  call criminal smart contracts (CSCs)  can  facilitate  leakage  of  confidential information,  theft  of  cryptographic  keys,  and  various  real-world crimes (murder, arson, terrorism).”

The examples developed by the researchers work on the recently launched smart contract platform Ethereum.

For example, malicious agents could anonymously hire hackers to compromise a website by creating a smart contract that, upon automatic verification that an agreed code string has been added to the hacked website, pays the hackers a reward in cryptocurrency. The method doesn’t require that the two criminal parties trust each other.

Similarly, self-executing smart contracts could be used in “assassination markets.” Criminals could place a smart contract for the assassination of a target, and the contract could pay the murderer automatically upon verification (for example by automatically scanning news wires) that the target has been murdered at an agreed place and time. Again, the method doesn’t require that the criminals trust each other.

The researchers participate in the Initiative for Crypto-Currencies and Contracts (IC3).

“Emerging smart  contract  systems  over  decentralized  cryptocurrencies  allow  mutually  distrustful  parties  to  transact safely with each other without trusting a third-party intermediary,” notes a related IC3 paper.

“In some ways this is the perfect vehicle for criminal acts, because it’s meant to create trust in situations where otherwise it’s difficult to achieve,” says Juels.

Ethereum CTO Gavin Wood notes that the aspects of Ethereum that make it suitable for “criminal smart contracts” can also permit all sorts of positive, radical social changes. For example, Ethereum smart contracts could permit creating decentralized versions of services such as Uber, and handling the payments without the need for a company in the middle. Such decentralized peer-to-peer (P2P) systems would be nearly impossible to legislate against.

Ethereum communications officer Ken Kappler made similar examples of how smart contracts could permit developing P2P versions of services such as eBay and AirBNB, which work without intermediaries. In general, intermediaries have been needed to operate exchange networks where the users don’t necessarily trust each other, but exchange networks built around self-enforcing smart contracts don’t require trust, and therefore don’t require intermediaries.

Therefore, smart contracts represent a disruptive innovation with a huge potential. In 2001, legendary cryptographer Nick Szabo spoke of smart contracts that solved the problem of trust by being self-executing, and property embedded with information about who owns it. For example, the key to a car might only operate if the car has been paid for according to the terms of a contract.

“The potential for Ethereum to alter aspects of society is of significant magnitude,” said Wood. “This is something that would provide a technical basis for all sorts of social changes, and I find that exciting.”

Photo Tim Pierce / Flickr (CC)

Read more ...

Bitnet & PAY.ON Deal Brings Bitcoin to Over 100 Payment Service Providers

Bitnet and PAY.ON have announced a partnership allowing PAY.ON’s entire customer base, which includes over 100 PSPs and 56,000 merchants, to accept bitcoin on its platform.
Read more ...

How to Save 25% on Gasoline When Paying with Bitcoin

Purse.io, a peer to peer marketplace known for its bitcoin-gift card service which lets users save money on e-commerce platforms like Amazon likewise allows users to purchase gasoline at Shell Station
Read more ...

AUG 19 DIGEST: First Bitcoin Block in Support of Bitcoin XT Mined; BTC Price Plunges Over 13% to 2-Month Low

The first Bitcoin block in support of Bitcoin XT has been mined by Slush Pool; the bitcoin price has plunged over 13% and more top stories for August 19.
Read more ...

Tuesday, August 18, 2015

Bitcoin Is a Natural Part of the Digital Lifestyle, Says Fidor Bank CEO

fidor

In February Bitcoin Magazine reported that German Fidor Bank had established a partnership with bitcoin exchange bitcoin.de, enabling Fidor Bank customers to buy and sell bitcoin instantly on the exchange with an agile “Bitcoin Express” option. The move was considered as a remarkably bold initiative by a mainstream bank.

Fidor Bank is no stranger to bold, innovative initiatives. The bank, which was granted a full European banking license in 2009, is known as a modern Internet Bank and an early adopter of new trends in fintech with innovative services for connected consumers. Fast Company named Fidor Bank one of the world’s top 10 most innovative companies of 2015 in personal finance, and described it as a social bank that leverages cutting-edge technology to respond to customer wishes.

A key feature of Fidor Bank is its community site, where users and representatives of the bank discuss the financial services provided by the bank in an open forum.  The bank is popular among Bitcoin users and considered as the most Bitcoin-friendly mainstream bank. In October, Fidor Bank partnered with bitcoin exchange Kraken to create the world’s first cryptocurrency bank.

In April, Bitcoin Magazine reported that Fidor Bank would begin operations in Great Britain. The move has encountered delays, which have been interpreted as due to opposition of the U.K. banking system, especially from major banks. But in a recent interview published in International Business Times, Fidor Bank CEO Matthias Kröner denied those rumors, and stated that the delays haven’t been due to lack of support, but to standard paperwork issues.

Kröner confirmed that Fidor Bank intends to start operating in the U.K. in 2015.

In the interview, Kröner spoke frankly about the perhaps unique position of Fidor Bank. Despite the now fashionable statements of interest in blockchain-based fintech that have been issued by many major banks, Fidor Bank remains the only bank to offer bitcoin options to its customers as part of normal banking operations.

“We simply think that everything which is coming along with crypto or even bigger with the blockchain is a more or less a natural part of the digital environment or the digital lifestyle,” said Kröner. “It is, as always, not a good thing to ignore or exclude important parts of a certain lifestyle once your customers are executing this lifestyle.”

According to Kröner, Fidor Bank has operated so far with the full consent of German regulators, some of which are perhaps more amenable to bitcoin than their counterparts in other European countries or in the United States. In particular, Kröner expressed critical views of Bitlicense regulations in New York, and mentioned that many Bitcoin operators, including Fidor Bank partner Kraken, are leaving New York.

Kröner is not interested in the underground aspects of bitcoin, and he is not impressed with the “fundamentalist” arguments in support of anonymous payments. On the contrary, he is in favor of reasonable and constructive regulations. At the same time, he is persuaded that the biggest obstacle to sound regulations is the fact that the politicians don’t understand cryptocurrencies and the digital environment.

Read more ...

A Quantum Theory of Money and Value

quantum

This is a guest post by David Orrell, a mathematician and author of books including Truth or Beauty: Science and the Quest for Order (Yale University Press). He is currently working on a book about money.

 

“I do not understand where the backing of bitcoin is coming from. There is no fundamental issue of capabilities of repaying it in anything which is universally acceptable, which is either intrinsic value of the currency or the credit or trust of the individual who is issuing the money, whether it’s a government or an individual.”  — Alan Greenspan

Is bitcoin money? To most readers the answer will be a resounding yes, but to many people, including former Federal Reserve Chairman Alan Greenspan, the answer is less clear. Indeed, one of the things holding back the adoption of cybercurrencies such as bitcoin is that they do not conform with traditional ideas about money.

Bullionists, for example, argue that money needs to be backed by precious metal – and bitcoin is not. Chartalists (from the Latin charta for a record), on the other hand, assert that coins and other money objects are just tokens that the state agrees to accept as payment of things like taxes. Again, bitcoin fails. Most mainstream economists, meanwhile, would ascribe to the view that money has no unique or special qualities, but instead is defined by its roles, e.g. as a medium of exchange. But emerging cybercurrencies do not have much use as a medium of exchange – at least at first.

So how do they become money? The answer to this question is that money of any sort has quantum, dualistic properties – analogous to the wave/particle duality of quantum physics – which allow it to be booted up from the ether.

As an example of quantum money, consider a U.S. dollar bill. On the one hand, it is a physical object which can be owned, traded and valued. On the other hand, it represents the number one, which is why it says “1” or “one” in fifteen different places. And numbers and things are as different as waves and particles. Numbers live in the abstract, virtual world of mathematics, while things live in the real world. Numbers are exact, while qualities such as perceived value depend on the person and the context. Numbers are hard and fixed, like the particle aspect of matter. Concepts or judgments such as worth or value are fuzzy, like the wave aspect of matter. The tension between these contradictory aspects is what gives money its powerful and paradoxical qualities.

The trade of money objects for goods or labor in a market means that those things attain a numerical value as well, namely the price, by contagion, just as the atoms in iron spontaneously align in a magnetic field. Market prices are therefore an emergent property of the system, in the sense that they emerge from the use of money objects. Of course, a bitcoin transfer does not resemble the traditional, Newtonian idea of a self-contained object, but then neither does matter when viewed from a quantum perspective – the real and virtual become blurred.

Money objects are unique in that their value is designed to be objectively fixed and stable. For other goods, their values are indeterminate until the moment they are exchanged for money (just as, according to quantum mechanics, the position or momentum of a particle is fundamentally undetermined until it is measured, at which point it “chooses” a value). This special status makes money objects desirable in themselves.

Implicit to traditional theories is the idea that money has to be backed by some pre-existing quantity, be it real (e.g. metal) or virtual (e.g. the law of the state). It therefore passively inherits its value from outside. But from a quantum perspective, rather than money being backed by something of monetary value, it is the other way round – market prices emerge dynamically from the use of money. A cybercurrency is supported not by metal or the state, but by something much more distributed and amorphous – its network of users. A property of networks is that their power expands rapidly with size. The value of a cybercurrency therefore grows in the same way with the size of the network of users, so can initially be near-zero. It is not necessary to begin with an external debt or a source of value, because the two can expand together.

This process makes sense only when we see money as a quantum, dualistic phenomenon. Just as bitcoin is revolutionizing money, so we need to update theories of money that were shaped by previous monetary eras of gold standard or state fiat currencies.

 

Adapted from the full paper available at SSRN. See video presentation of related Marshall McLuhan lecture, hosted by transmediale and the Canadian Embassy in Berlin.

Read more ...

Growing Population in China Views Bitcoin as a Safe Haven, Says BTCChina’s Greg Wolfson

china-bull-bear

This week, the Chinese yuan has devalued to a four-year low against the U.S. dollar while BTC/CNY echange rate has risen from 1,633 yuan to 1,690.36 yuan. Is the devaluation of the Chinese yuan triggering a surge of bitcoin growth in China?

Not necessarily.

“Generally, if bitcoin behaved like other commodities, it would decline in price with the devaluation of the Chinese yuan, since BTC would be more expensive in CNY terms, which would reduce overall market demand,” Greg Wolfson of BTCChina told Bitcoin Magazine. “In fact, for the past five years, we’ve seen a strong bear market in commodities, and part of that trend is driven by structural changes in China. Bitcoin prices have also declined over the same period, although it hasn’t been shown that this is correlated with traditional commodity indices.”

However, there are quite a few people in China who are enthusiastic about bitcoin and think of the digital currency as a stable alternative to the Chinese yuan. Some businesses purchase bitcoin due to its relatively high international exchange rates and to avoid times of economic uncertainty.

“The CNY devaluation is significant as a policy signal, but the actual devaluation wasn’t very large in relative terms,” Wolfson said. “However, there are a growing number of people who feel that bitcoin is a safe haven of sorts, analogous to the role that gold played historically. If this is true, economic turmoil in China could cause speculators and perhaps some businesses to buy more bitcoin in a ‘flight to safety.’ Bitcoin has some properties that make it attractive during times of economic uncertainty, and uncertainty in Chinese stock markets, foreign exchange rates, and the overall economy could create more demand for bitcoin and buoy prices.”

Bad Reputation

Despite the space of opportunity that the devaluation of the Chinese yuan has left open for bitcoin, the digital currency has been suffering from bad press in China. Due to a large number of bitcoin fraud/Ponzi schemes such as MyCoin and hacking incidents involving the digital currencies, bitcoin has been portrayed negatively in the general Chinese population, as a tool for illegal trades and programs.

“Chinese are highly skeptical of anything that could be perceived as a scam,” Wolfson told Bitcoin Magazine. “Bitcoin’s unclear legal status and its association with hacking, gambling and online dark markets have hurt its perceived legitimacy. We need to do a much better job with public relations, helping people understand bitcoin’s utility, and, most importantly, actually making it commercially useful to people.”

For bitcoin to reach mainstream adoption in China, Wolfson says that valid and relevant applications that make sense in China have to be developed. All payment systems, restrictions and regulations function in a unique way in China, and, therefore, it is hard to predict how Bitcoin will grow and gain traction as a payment method for domestic transactions.

However, Wolfson explained, “‘Mainstream adoption’ isn’t necessarily limited to payments. Given the amount of mining and exchange that occurs in China, bitcoin is arguably more mainstream in China than anywhere else in the world.”

 

Photo Christopher / Flickr (CC)

Read more ...

Top 10 Greatest Moments in Bitcoin History

Bitcoin has had many impressive achievements within its fist six and a half years, but with the help of historyofbitcoin.org to find some key dates of events, here are the Top 10 Moments in Bitcoin hi
Read more ...

Matthew Roszak on Bitcoin’s Killer App: “Don’t Sell Drills, Sell Holes.”

matt-roszak

I had the pleasure of talking with Matthew Roszak, Founding Partner of Tally Capital, for an interview series on my newsletter, Crypto Brief. If you’re ever starting to doubt how much energy you’re putting into the industry, just listen or read some of the things he’s said about it and you’ll feel your excitement rejuvenated.

A little background on Roszak: He was named one of the “Who’s Who of the crypto-currency world” by The Wall Street Journal and has been in private equity and venture capital for more than 18 years, investing more than $1 billion of capital in a broad range of industries from startup to IPO. He serves on the boards of BitGive, Blockchain Capital, Chambers of Digital Commerce, Dunvegan Space Systems, Factom, Noble Markets and Romit, among other companies.

Recently, he founded the Chicago Bitcoin Center, which is an incubator based out of 1871. He acted as a producer of the Bitcoin documentary, The Rise and Rise of Bitcoin.

How did you get your start in Bitcoin?

Bitcoin originally surfaced on my radar in 2011 when one of my portfolio companies, a social gaming company in Singapore, looked into Bitcoin as a potential payment source. So I read Satoshi [Nakamoto]’s white paper and became intrigued by the potential for Bitcoin’s promise. Having a currency and protocol that was open, secure and decentralized resonated with me whereby finance, industry, government and other centers of gravity can be completely re-engineered. I was also an investor in Zero Knowledge Systems, a privacy software company, which was founded by Austin Hill. Austin is now the CEO of Blockstream, a San Francisco-based blockchain startup. All of these intersections kept pulling me into the rabbit hole – and I have been digging deeper ever since.

Bitcoin and blockchain-based technologies have the potential to change the world – from enhancing the plumbing on Wall Street to providing for greater financial inclusion for the unbanked. I was drawn to Bitcoin much like my initial experiences with personal computers, mobile phones and the Internet – I had this emotional reaction when I realized the ways in which these technologies can be very powerful change agents for innovation. Furthermore, there was this clear opportunity to be on the front end of something really transformative – on the scale of railroads, automobiles, telephony or the Internet – that has the potential to make a meaningful impact on society.

I decided to dedicate my time and energy investing in and building out this ecosystem, and founded Tally Capital as an investment and operating platform. To date, Tally has invested in over two-dozen companies, including BitFury, Blockstream, Bloq, ChangeTip, Factom, MaidSafe, Noble Markets and Romit, amongst others. Beyond investing, I’ve also been active on the boards of two leading non-profits in our industry, the Chamber of Digital Commerce (the first D.C.-based trade association) and BitGive (the first philanthropic organization). There’s a ton of work to do in order to propel this industry forward – from investment and development to education and advocacy – we’re just getting started.

Where did the name Tally come from?

To truly appreciate the potential of Bitcoin, one needs to understand the history of money. The name “tally” is derived from tally sticks, a form of currency initiated by King Henry I around 1100, in medieval England. The system of tally marks consisted of notches cut along the edge of a polished wooden stick (issued by stockbrokers) to signify denominations, and then split in half so each counterparty maintains a receipt of the transaction — this is analogous to the way in which public and private key technology behaves in Bitcoin.

Over the course of 726 years, the British Empire was built and financed under the tally stick system, making it one of the most successful forms of currency in history. The Bank of England at its formation attacked the tally stick system as it realized that tallies were outside the power of the money-changers. By 1834, tallies were ordered to be burned by the Bank of England, and in the process the fire went out of control and nearly destroyed Parliament.

Do you believe the “killer app” for Bitcoin has already been invented? If so, what is it? If not, what do you think it will be?

My sense is that the killer app is upon us. It’ll take some time to surface as we’re still in the initial phase of building out the industry’s underlying infrastructure. Some of the key innovations we have seen thus far include multisig and sidechains. Multisig is in many ways more of a feature like double-knotting your shoelaces, while sidechains are just getting off the ground, albeit have the potential to be incredibly powerful in scaling the blockchain.

Furthermore, the use case of the killer app will likely not be promoted primarily as Bitcoin-based, as the technology will be leveraged and working in the background. There’s an old adage in business that says, “Don’t sell drills, sell holes.” Consumers and businesses are looking for solutions that leverage this new technology and some of its keystone attributes of security, privacy and decentralization.

A lot of the key elements needed in developing Bitcoin’s killer app, or our Netscape moment, are already in motion – including a $1 billion investment run rate, the best and brightest from Wall Street to Silicon Valley jumping into the ecosystem, and household names in financial services like Goldman Sachs, Citibank and UBS, and big tech names like IBM, Samsung and Intel, are now fully engaged. These are all of the right ingredients for innovation and experimentation to flourish.

As a venture capitalist, what do you look for when investing? What is the one sector you’re most interested in within Bitcoin?

Beyond looking at the product, market, team, etc., it used to be innovative in itself to be in Bitcoin; however, now you have to be innovative within Bitcoin. As for key investment themes, some of the areas that are of great interest include: identity, big data/analytics, messaging and bitcoin’s role in the IoT [Internet of Things.]

Identity is the standout from my perspective. Think about the issues involved with signatures, voting registration, birth certificates, passports and the like. Being able to create a permissioned identity stack for consumers and businesses with unprecedented levels of security, privacy and control can be very powerful.

Today, our identity is stored, updated and managed by governments, employers, banks and social networks – and not a day goes by where this sensitive information doesn’t get compromised. When one goes to a Target, we give them our credit card and sometimes a driver’s license is required to confirm that credit card is indeed ours. These consumer transactions require a lot more personal information than what’s truly necessary.

Identity needs to be completely re-imagined. There should be discrete slices of our identity stack that dynamically populates the right information in the appropriate circumstance – not to mention for a predetermined amount of time. For example, if you’re purchasing alcohol, all that needs to be verified is your age. If you’re headed to a job interview, employers only get a specific set of information. Mortgage application? That’s a different part of the stack. Hospital? Way different.

This new blockchain identity model can also turn the entire advertising industry upside down. Consumers will no longer be forced to look at ads, unless we provide express authorization. In return, consumers get compensated directly from advertisers and cut out the middleman (like Facebook and Google). Fast forward this movie further, and you can see how this model can turn high impact advertising into a smart contract residing on the blockchain.

Strengthening identity and personal privacy protections with blockchain-based technologies is a game-changer, and one of the greatest opportunities in Bitcoin.

Do you believe that BitLicense will have a significantly negative impact on Bitcoin businesses or will the increased regulation provide some validation for the businesses?

BitLicense has created clarity as to what it takes to operate in the State of New York, which is a good thing. On the other hand, the processes and requirements to adhere to BitLicense are extremely detrimental to early-stage companies. Many other states and even countries will look to BitLicense as a model regulatory framework, which will only make it harder and more expensive to operate in this industry.

From my perspective, BitLicense is akin to a big boot compressing the air hose of innovation – and will make entrepreneurs and investors think twice about doing business in New York. This may also lead to jurisdictional arbitrage, and perhaps create new power centers for Bitcoin companies in places like London, Toronto or Singapore, which have shown to be much more accommodating during these early days.

Fred Wilson owns a small amount of bitcoin but, for the most part, is more interested in investing in Bitcoin companies. Are you more focused on the companies, the currency, or a mixture of both?

 My investment thesis is comprised of both bitcoin and companies in the ecosystem. The majority of Tally’s capital resides in bitcoin, the currency. I do not check the price of bitcoin every day – this is a long-haul investment, and my sense is that it will take 5-10 years for things to materialize. To date, Bitcoin has been a speculative flywheel on the currency. Miners sell their bitcoin winnings to help fund electricity bills and next-gen chips, while investors buy and hoard hoping the price goes up. That dynamic has been relatively ho-hum over the recent past as evidenced by the relatively stable, or more like boring, price range of bitcoin. The key in all of this is to have the blockchain’s flywheel get moving with innovative applications that help drive utility, throughput and transactions. Once that happens, the price of bitcoin will react accordingly.

Where do you see the price of bitcoin going over the next few years?

 I think bitcoin is one of the greatest mispriced assets I’ve seen in my career. I am extremely bullish on bitcoin. Given the investment capital and human capital dynamics pouring into this ecosystem, I believe bitcoin is one of the greatest generational opportunities for investors and entrepreneurs. The easiest way for people to invest in this ecosystem is by simply buying bitcoin – which I like to characterize as a tracking stock representing this exciting, new frontier in technology, and well beyond.

Read more ...

Buy Bitcoin with a Credit Card Worldwide with Chip Chap

Chip Chap, the “e-money converter” app, released a new version that supports worldwide bitcoin purchases via credit card.
Read more ...

Greece to Receive 1,000 Bitcoin ATMs as Trust in Banks ‘Long Gone’

Bitcoin service provider and exchange Cubits has partnered with Greek bitcoin exchange BTCGreece to install 1,000 bitcoin ATMs and help small and medium sized businesses move money.
Read more ...

Augur Prediction Market Clears Over $600,000 in Crowdsale Already

Augur, the decentralized prediction market and one of the hottest Ethereum apps, has begun their token crowd sale on August 17, raising over US$600 thousand equivalent in BTC and ETH in the first day
Read more ...