A thesis from Eötvös Loránd University explores how blind signatures, first introduced by David Chaum for untraceable payments, can evolve to resist quantum-era threats. Author Bhardwaj Aditya, under the supervision of Dr. Péter Kutas, traced blind signatures from RSA and Schnorr-based systems to lattice-based constructions, which leverage the hardness of lattice problems such as SVP and CVP. The study highlights that “a practical and strong enough quantum computer could pose a threat” to today’s digital signature systems, surfacing the urgency of post-quantum solutions. The thesis reviews recent lattice-based blind signature schemes, including del Pino and Katsumata’s round-optimal design with formal proof in the quantum random oracle model, and examines vulnerabilities such as the ROS attack. It applies these tools to electronic cash, assessing peer-to-peer approaches to prevent double spending. The work concludes with a proposed lattice-based eCash model, positioning lattice primitives as promising foundations for future secure, anonymous digital payments.
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Bitcoin mining stocks are rallying as investors increasingly value companies’ potential role in AI and high-performance computing (HPC), according to analyst Pennyether on The Mining Pod. Bitfarms surged 138% in recent weeks, with similar gains at Cipher, Hive, Hut 8, and Iron Mountain after announcements of GPU hosting and AI data center projects. Pennyether explained the repricing: previously mining stocks were valued almost entirely on “a probability distribution of where hash price is going to go,” but now markets assign weight to HPC deals that can be “two to five times as profitable for the same megawatts.” The discussion highlighted Bitdeer’s challenge to Bitmain’s dominance in the $20 billion ASIC market, with its new SEALMINER chips offering potential efficiency breakthroughs. Pennyether argues Bitcoin’s hash rate will keep rising with semiconductor advances, positioning miners as digital infrastructure providers whose value extends far beyond Bitcoin.
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OpenAI is preparing to launch a stand-alone social app for AI-generated video built on its Sora 2 model, according to WIRED. The platform mirrors TikTok’s vertical scroll format but only features synthetic content, with a For You–style feed, remix tools, and interactive functions like likes and comments. Users can generate 10-second clips but cannot upload their own footage. A key feature is identity verification, which lets people insert their likeness into videos or approve its use by others, with notifications triggered even for unposted drafts. The app, tested internally last week, has drawn strong engagement from OpenAI employees, some of whom joked it risks distracting from work. Strategically, sources say, the company sees a “unique opportunity” amid uncertainty over TikTok’s U.S. ownership. OpenAI faces competition from Meta’s “Vibes” and Google’s Veo 3 rollout on YouTube, while also navigating copyright lawsuits and child-safety scrutiny. The Sora 2 app could mark a pivotal moment in mainstreaming AI video.
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Author, Bryan Caplan, in his newsletter, argues that the line between “civilization” and “barbarism” is moral rather than technological. He contrasts a high-tech society that enslaves and tortures with a hunter-gatherer society that welcomes strangers, concluding that the latter is more civilized despite its poverty. “Maximally civilized societies…afford exactly the same rights to all intelligent beings,” Caplan writes, while barbaric ones deny outsiders life and property. He notes that technological progress often aligns with moral respect because trade and investment thrive under rights-based systems, but history shows advanced nations, from colonial empires to World War combatants, committing atrocities. Today, developed countries restrain violence through morality, however imperfectly. Caplan applies this lens to immigration, rejecting exclusionary arguments as collective guilt and tribalism. True civilization, he contends, requires recognizing immigrants as innocent individuals deserving equal treatment, not scapegoating them as barbarians.
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