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Bitcoin transaction delays: Is block size increase the final answer?

The good news: the Bitcoin network had not reached the widely predicted saturation point as recently feared. The bad news: The spam that caused the problem is suggesting to some Bitcoin watchers that...

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Blockchain is useful for a lot more than just Bitcoin

Blockchain technology is not just useful for creating digital currencies such as Bitcoin or developing new financial technologies.

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Using Bitcoin to prevent identity theft

A reaction to the 2008 financial crisis, Bitcoin is a digital-currency scheme designed to wrest control of the monetary system from central banks. With Bitcoin, anyone can mint money, provided he or...

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Microsoft announces Coco Framework to facilitate businesses looking to adopt...

(Tech Xplore)—Business watchers are looking to blockchain technology as transformational but easier said than done.

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Spotlight glare on Bitcoin as numbers show mining's energy use

(Tech Xplore)—We heard in early studies that Bitcoin used much energy. Digiconomist can take us down memory lane when an investigation into the energy consumption of the Bitcoin network was conducted...

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Is your computer secretly mining Bitcoin alternatives? A guide to...

Nothing comes for free, especially online. Websites and apps that don't charge you for their services are often collecting your data or bombarding you with advertising. Now some sites have found a new...

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Bitcoin estimated to use half a percent of the world's electric energy by end...

Bitcoin's burgeoning electricity demands have attracted almost as much attention as the cryptocurrency's wildly fluctuating value. But estimating exactly how much electricity the Bitcoin network uses,...

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Mining bitcoin uses more energy than Denmark: study

Extracting a dollar's worth of cryptocurrency such as bitcoin from the deep Web consumes three times more energy than digging up a dollar's worth of gold, researchers said Monday.

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Renewable energy won't make Bitcoin 'green,' but tweaking its mining...

The cryptocurrency Bitcoin is known for its massive energy footprint. Now, researcher Alex de Vries, from PricewaterhouseCoopers (PwC) in the Netherlands, suggests that renewable hydropower production...

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Empirical energy consumption model quantifies Bitcoin's carbon footprint

Researchers have conducted the first analysis of Bitcoin power consumption based on empirical data from IPO filings and localization of IP addresses. They found that the cryptocurrency's carbon...

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Bitcoin compared to what? New index shows energy consumption

Bitcoin has landed front and center in the ongoing debate over benefits of cryptocurrencies and impact on the environment.

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Bringing the blockchain into the physical world

A kit made from everyday objects is bringing the blockchain into the physical world.

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Bitcoin craze hits Iran as US sanctions squeeze weak economy

Iranians feeling the squeeze from U.S. sanctions targeting the Islamic Republic's ailing economy are increasingly turning to such digital currencies as Bitcoin to make money, prompting alarm in and out...

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Making blockchain transactions secure and private

Blockchains have become an important part of internet technology. They are used for cryptocurrencies such as Bitcoin, but also for other security-sensitive tasks, such as managing supply chains for...

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Austria telecoms provider accepts cryptocurrency

Austria's leading telecoms provider A1 sid Thursday that it was letting customers pay in cryptocurrency under a pilot project to test the popularity of virtual payments.

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The blockchain concept

Blockchain is the technology that underpins cryptocurrencies such as Bitcoin. Fundamentally, the blockchain is simply a ledger, a digital record of transactions associated with a digital currency, a...

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Hacker seeking bitcoin ransom hits Spanish city's computer sytem

A hacker has taken over the computer system of the southern Spanish city of Jerez de la Frontera and is demanding a ransom paid in bitcoin to unlock it, local officials said Friday.

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Cryptocurrencies can help create 'parallel society': hackers

A hackers' congress in Prague on Friday hailed the new cryptocurrencies as a tool to break free from the constraints of modern life and move towards a freer "parallel society".

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China wants centralised digital currency after bitcoin crackdown

As Facebook readies to launch its answer to bitcoin, China is set to introduce its own digital currency—one that could allow the government and the central bank to see what people spend their money on,...

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Crypto-currencies and criminality: myth or reality?

The recent bust of a worldwide international paedophile ring using Bitcoin payments highlighted one of the key fears surrounding crypto-currencies—their use by criminals.

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