0xbitcoiner

bitcoin

A bitcoin experiment

science

> **Randomness is essential to some research, but it’s always been prohibitively complicated to achieve. Now, we can use “pseudorandomness” instead.**
>
> ![](https://m.stacker.news/84640)
>
> Nothing is certain in the quantum realm. A particle, for example, can exist in multiple quantum states simultaneously. The same goes for a quantum bit, or qubit — the basic unit of information used in quantum computing. The act of measurement causes these objects to collapse into a single state, and usually the best you can do is calculate the probability of a particular outcome.
>
> The unpredictability at the heart of the quantum realm has been immensely useful for computing and cryptography, where experts have learned to harness randomness as a tool. But as useful as it is for quantum circuits to incorporate true randomness, it’s a difficult state to achieve, with steep costs. “Generating randomness is pretty expensive,” said William Kretschmer(opens a new tab), a researcher at the Simons Institute for the Theory of Computing who studies quantum complexity.
>
> As a result, quantum researchers have long wanted to see if they could possibly fake that randomness. They wanted to build “pseudorandom” quantum circuits, which seem to be truly random but can nonetheless be constructed relatively simply and manageably. The only problem was that no one knew if it was possible to actually build one.
>
> After years of uncertainty, two researchers posted a paper last October(opens a new tab) that proved that it is in fact possible to construct such a circuit. Their work provides an elegant and secure way to represent quantum randomness that’s indistinguishable from the real thing, without the enormous computational load — though it’s only possible in a world where some basic theoretical assumptions of cryptography are correct. The proof could open new doors for quantum computing and cryptography research.
>
> “Before this recent result on pseudorandom [circuits], we didn’t have good evidence that they actually exist,” said Alexander Poremba(opens a new tab), a quantum computing researcher at the Massachusetts Institute of Technology who was not involved with the new paper. Now, “for the first time, we have very good evidence that pseudorandomness is a real concept.”
>
> **[...read more at quantamagazine.org](https://www.quantamagazine.org/the-high-cost-of-quantum-randomness-is-dropping-20250328/)**

The High Cost of Quantum Randomness Is Dropping

AskSN

What gif best encapsulates your job?

stack_harder

Do you wear a smartwatch?

zuspotirko

Animal_World

Meme Contest - Buterin/Emu

siggy47

news

> **As if living in Croydon wasn't bad enough**
>
> ![](https://m.stacker.news/84632)
>
> The Metropolitan Police has confirmed its first permanent installation of live facial recognition (LFR) cameras is coming this summer and the lucky location will be the South London suburb of Croydon.
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> The two cameras will be installed in the city center in an effort to combat crime and will be attached to buildings and lamp posts on North End and London Road. According to the police they will only be turned on when officers are in the area and in a position to make an arrest if a criminal is spotted.
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> The installation follows a two-year trial in the area where police vans fitted with the camera have been patrolling the streets matching passersby to its database of suspects or criminals, leading to hundreds of arrests. The Met claims the system can alert them in seconds if a wanted wrong'un is spotted, and if the person gets the all-clear, the image of their face will be deleted.
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> "I am currently working with the central team to install fixed LFR cameras in Croydon town center," Mitch Carr, the police force's neighborhood policing superintendent, told local leaders, the Times [reports](https://www.thetimes.com/uk/london/article/croydon-to-get-uks-first-permanent-facial-recognition-cameras-0b6hhxhc7).
>
> **[...read more at theregister.com](https://www.theregister.com/2025/03/27/uk_facial_recognition/)**

UK's first permanent facial recognition cameras installed

Stacker Saloon

saloon

Politics_And_Law

> **Unaware and Uncertain: Is the Open Source Community Prepared for the New Regulatory Reality of the Cyber Resilience Act?**
>
> ![](https://m.stacker.news/84629)
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> In 2022, the Log4Shell vulnerability exposed a stark reality: open source software (OSS) is the foundation of the digital world, but without structured security processes, it can become a major attack vector. Log4j, a widely used open source logging library, was exploited by attackers, impacting thousands of organizations globally and forcing emergency security responses across industries.
>
> Fast forward to today, and the stakes have only grown. With open source components making up as much as 96% of modern software, governments and regulators are stepping in to define cybersecurity standards for digital products. The European Union’s Cyber Resilience Act (CRA) is one of the most significant regulatory shifts yet. The CRA aims to ensure that software and hardware products meet strict security requirements throughout their lifecycle.
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> But the CRA doesn’t just affect commercial vendors, it introduces new responsibilities for open source software stewards—organizations that support, but don’t monetize, open source projects. This regulation acknowledges a fundamental challenge: security responsibility cannot solely rest on manufacturers who consume open source software; it must also involve the upstream communities that develop and maintain it.
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> Over the past few months, Linux Foundation Research fielded and analyzed a survey of open source community members on their awareness of the CRA and their organizational and project readiness to address regulatory obligations. Beyond measuring this readiness, the analysis collected actionable insights on how to support open source contributors in meeting emerging security standards. The full report is now published on the Linux Foundation website—download the PDF to read the full analysis!
>
> **[...read more at linuxfoundation.org](https://www.linuxfoundation.org/blog/unaware-and-uncertain-is-the-open-source-community-prepared-for-the-new-regulatory-reality-of-the-cyber-resilience-act)**

Is the OSC Prepared for the New Regulatory Reality of the Cyber Resilience Act?

charts_and_numbers

The World’s Most Visited Websites by Time Spent Per Visit

Agreed! Hahaha

I have no clue what Dzen and Yandex are!

![](https://m.stacker.news/84617)

*https://www.britannica.com/animal/black-snake*

Snake Breed Of The Week — Black Snake

> ### Key Takeaways
>
> - On average, people spent 20m 47s on YouTube per visit, the highest amount of time across the top 20 most visited websites in the world.
> - Across social media platforms, people spent more time on X (12m 37s) than Facebook (10m 59s) and Instagram (8m 41s).
> - People who use ChatGPT spent nearly seven minutes on average per visit, beating out Reddit (6m 7s) and Wikipedia (3m 18s).
>
> ![](https://m.stacker.news/84616)
>
> **[🔗 visualcapitalist.com](https://www.visualcapitalist.com/the-worlds-most-visited-websites-by-time-spent-per-visit/)**

Stacker_Stocks

Discord is planning an IPO this year, and big changes could be on the horizon

I think most trading platforms only offer shorting through CFDs, not the real way of shorting, which is borrowing actual shares to sell with a promise to buy them back later. I’ve never shorted and don’t plan to because when you short, you can lose more than 100%, while when you're long, the most you can lose is 100%.

> **Bitcoin’s fixed supply of 21 million makes it a scarce asset, unlike fiat currency, which loses value due to unlimited printing. As demand grows and supply shrinks, Bitcoin’s value is expected to increase, making now the best time to start accumulating it.**
>
> ![](https://m.stacker.news/84607)
>
> Imagine if gold had a strict cap—once every ounce was mined, there’d be no more its value would surge because true scarcity drives demand. But gold isn’t finite. Bitcoin, however, is digital, decentralized, cryptographically secured, and mathematically programmed; it has a hard limit of just 21 million coins—ever, and that changes everything.
>
> In a world where central banks print trillions of dollars at will, Bitcoin stands apart as the hardest form of money ever created. If you're holding Bitcoin (HODLing), that means your financial future is safe—as long as you don't lose your private keys, avoid shitcoins, and Do Your Own Research to stay informed, make responsible decisions, and most importantly, “don't trust—always verify”
>
> But if you're still unsure whether you should get some Bitcoin or need clarification, just chill and keep reading—this article will break it all down for you, explaining how Bitcoin is Different from Fiat, why Bitcoin is scarce, why that matters, how scarcity benefits HODLers in the long run, and why now is the best time to start stacking sats.
>
> Let’s dive in!
>
> **[...read more at blink.sv](https://www.blink.sv/blog/power-of-21-million)**

Fiat vs BTC: What BTC’s Fixed Supply Means for HODLers & Why You Should Get Some

> **Announcing the seizure of $200,000 in cryptocurrency allegedly linked to Hamas, CoinDesk publishes long debunked terrorist financing allegations**
>
> ![](https://m.stacker.news/84604)
>
> Yesterday, the Treasury [announced](https://www.justice.gov/opa/pr/justice-department-disrupts-hamas-terrorist-financing-scheme-through-seizure-cryptocurrency) that it had seized $200,000 in cryptocurrency "intended to Support the Terrorist Activities of Harakat al-Muqawama al-Islamiyya (Hamas)."
>
> The seized funds were traced from fundraising addresses allegedly controlled by Hamas that were used to launder more than $1.5 million in virtual currency since October 2024, the Justice Department claims without further comment.
> 
> In its coverage of the announcement, CoinDesk writes:
>
> **[...read more at therage.co](https://www.therage.co/coindesk-debunked-hamas-financing/)**

CoinDesk Publishes Long Debunked Hamas Financing Allegations

> **The new isopod species has been named Bathynomus vaderi after the most famous Sith Lord in the Star Wars movie series, Darth Vader, whose helmet resembles the marine animal’s head.**
>
> ![](https://m.stacker.news/84579)
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> The newly-discovered species belongs to Bathynomus, the dominant scavenging isopod genus in the tropical and temperate deep sea.
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> First described in 1879 by the French zoologist Alphonse Milne-Edwards, this genus includes almost 20 living and four fossil species.
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> These creatures are abundant in the cold, deep waters of the Atlantic, Pacific and Indian Oceans.
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> They are well known because of their gigantism, with some species reaching large sizes in excess of 30 cm (11.8 inches) length.
>
> **[...read more at sci.news](https://www.sci.news/biology/bathynomus-vaderi-13595.html)**

/cc @DarthCoin