Blockchains: Focusing on bitcoin misses the real revolution in digital trust

Ensuring trust in digital records and transactions is hard; the blockchain is an important solution. Robert Bagnall/YouTube, CC BY Ari Juels, Cornell University and Ittay Eyal, Cornell University In 2008, short of sending a suitcase full of cash, there was essentially just one way for an individual to send money between, say, the United StatesContinue reading “Blockchains: Focusing on bitcoin misses the real revolution in digital trust”

How blockchain technology is about to transform sharemarket trading

The ASX will use blockchain technology to clear trades. Image sourced from www.shutterstock.com Adrian Lee, University of Technology Sydney and KIHoon Hong, Hongik University Recently the Australian Securities Exchange (ASX) bought a $15 million stake in Digital Asset Holdings, a developer of blockchain technology. One of the main reasons is to upgrade its share registryContinue reading “How blockchain technology is about to transform sharemarket trading”

Can blockchain technology help poor people around the world?

No need for a bank: Just a smartphone and a blockchain. Houman Haddad/UN World Food Program Nir Kshetri, University of North Carolina – Greensboro Big Wall Street companies are using a complicated technology called blockchain to further increase the already lightning-fast speed of international finance. But it’s not just the upper crust of high financeContinue reading “Can blockchain technology help poor people around the world?”

Are cryptocurrencies a dream come true for cyber-extortionists?

More cryptocurrencies appear all the time. Wit Olszewski/Shutterstock.com Nir Kshetri, University of North Carolina – Greensboro When malicious software takes over computers around the world, encrypts their data and demands a ransom to decode the information, regular activities of governments, companies and hospitals slam to a halt. Sometimes security researchers release a fix that allowsContinue reading “Are cryptocurrencies a dream come true for cyber-extortionists?”

How can criminals manipulate cryptocurrency markets?

Now you see it, now you don’t. Syda Productions/Shutterstock.com Nir Kshetri, University of North Carolina – Greensboro Cryptocurrencies like bitcoin are based on systems that are supposed to be inherently protected from fraud. Yet the U.S. Department of Justice has opened a criminal investigation into manipulation of bitcoin prices. How is that sort of activityContinue reading “How can criminals manipulate cryptocurrency markets?”

Bitcoin price manipulation puts trust in cryptocurrencies at risk

Neil Gandal, Tel Aviv University and Tyler Moore, University of Tulsa Cryptocurrencies like bitcoin have grown in popularity in large part because they can be bought and sold without a government or other third party overseeing everything. But there’s a flipside: Unlike in markets for other assets such as stocks or bonds, it makes itContinue reading “Bitcoin price manipulation puts trust in cryptocurrencies at risk”

What is a blockchain token?

What’s this digital token good for, anyway? knipsdesign/Shutterstock.com Stephen McKeon, University of Oregon People are just becoming acquainted with the idea of digital money in the form of cryptocurrencies like bitcoin, where transactions are recorded on a secure distributed database called a blockchain. And now along comes a new concept: the blockchain-based token, which I’veContinue reading “What is a blockchain token?”

Demystifying the blockchain: a basic user guide

The blockchain is software that stores and transfers value or data across the internet. Image sourced from shutterstock.com Philippa Ryan, University of Technology Sydney Companies around the world are exploring blockchain, the technology underpinning digital currency bitcoin. In this Blockchain unleashed series, we investigate the many possible use cases for the blockchain, from the novelContinue reading “Demystifying the blockchain: a basic user guide”

Blockchain is useful for a lot more than just Bitcoin

The distributed nature of blockchain networks make them useful for many applications. Shutterstock Mark Staples, Data61 Blockchain technology is not just useful for creating digital currencies such as Bitcoin or developing new financial technologies. Blockchains can be used for a wide variety of applications, such as tracking ownership or the provenance of documents, digital assets,Continue reading “Blockchain is useful for a lot more than just Bitcoin”

Blockchain could challenge the accepted ways we shape and manage society

tigerpixel, CC BY-NC-ND Phil Godsiff, University of Surrey In only a few years, digital currency bitcoin has emerged from the shadows to become something debated by politicians and pondered by economists. Now it is blockchain, the technology that makes bitcoin possible, that is having its moment in the sun: the UK government’s Chief Scientist SirContinue reading “Blockchain could challenge the accepted ways we shape and manage society”

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