Over the past 28 years, the Hubble Space Telescope has inspired a generation of astronomers with insanely dramatic views of the universe, but it’s hardly done blowing our minds. NASA has unveiled a new fly-through video of the Lagoon Nebula. Located…
No, it isn’t like cheating at all.
Her job finally drives her to drink.
The Boss and Michael Stipe made a surprise appearance at Smith’s Tribeca Film Festival premiere.
“When you know that you did nothing wrong, how do you really react to it?”
The French president chuckled awkwardly during the bizarre moment.
Spotify has made its streaming music service more tempting to free users, with a new Spotify mobile app that it hopes will keep listeners from jumping ship to Apple Music. The updated app includes more flexible access to the Spotify catalog of tracks, with more on-demand control, along with a way to potentially save considerably on how much data your … Continue reading
A new – and theoretical – system for blockchain -based data storage could ensure that hackers will not be able to crack cryptocurrencies once the quantum era starts. The idea, proposed by researchers at the Victoria University of Wellington in New Zealand, would secure cryptocurrency futures for decades using a blockchain technology that is like a time machine.
You can check out their findings here.
To understand what’s going on here we have to define some terms. A blockchain stores every transaction in a system on what amounts to an immutable record of events. The work necessary for maintaining and confirming this immutable record is what is commonly known as mining . But this technology – which the paper’s co-author Del Rajan claims will make up “10 percent of global GDP… by 2027” – will become insecure in an era of quantum computers.
Therefore the solution is to store a blockchain in a quantum era requires a quantum blockchain using a series of entangled photons. Further, Spectrum writes: “Essentially, current records in a quantum blockchain are not merely linked to a record of the past, but rather a record in the past, one does that not exist anymore.”
Yeah, it’s weird.
From the paper intro:
Our method involves encoding the blockchain into a temporal GHZ (Greenberger–Horne–Zeilinger) state of photons that do not simultaneously coexist. It is shown that the entanglement in time, as opposed to an entanglement in space, provides the crucial quantum advantage. All the subcomponents of this system have already been shown to be experimentally realized. Perhaps more shockingly, our encoding procedure can be interpreted as non-classically influencing the past; hence this decentralized quantum blockchain can be viewed as a quantum networked time machine.
In short, the quantum blockchain is immutable because the photons that it contains do not exist at the current time but are still extant and readable. This means the entire blockchain is visible but cannot be “touched” and the only entry you would be able to try to tamper with is the most recent one. In fact, the researchers write, “In this spatial entanglement case, if an attacker tries to tamper with any photon, the full blockchain would be invalidated immediately.”
Is this possible? The researchers note that the technology already exists.
“Our novel methodology encodes a blockchain into these temporally entangled states, which can then be integrated into a quantum network for further useful operations. We will also show that entanglement in time, as opposed to entanglement in space, plays the pivotal role for the quantum benefit over a classical blockchain,” the authors write. “As discussed below, all the subsystems of this design have already been shown to be experimentally realized. Furthermore, if such a quantum blockchain were to be constructed, we will show that it could be viewed as a quantum networked time machine.”
Don’t worry about having to update your Bitcoin wallet, though. This process is still theoretical and not at all available to mere mortals. That said, it’s nice to know someone is looking out for our quantum future, however weird it may be.
Apple’s next generation iPhone collection likely has OLED panels at its heart. Evidence appeared today in industry sources speaking about Samsung’s OLED production levels and an apparent request from Apple to reduce prices on said OLED panels. These panels are likely headed toward more than one iPhone to be revealed later this year, in between 1 and 3 models, all … Continue reading
It’s been quite a few months since we first discovered that Wolfenstein II: The New Colossus will make the jump to the Nintendo Switch, and today, Bethesda finally revealed when it will release. We’re also getting our first look at how the Switch version of Wolfenstein II performs, so if you’ve been waiting for this port, you’ll definitely want to … Continue reading
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