Exploring HTTPS Certificates for Onion Services: Enhancing Security and Functionality

2025-08-28

This document explores various methods for integrating and validating TLS/HTTPS certificates for Onion Services to enhance their security and functionality. While Onion Services inherently provide end-to-end encryption, HTTPS certificates unlock features like HTTP/2 and payment processing, bolstering security. The article details the pros and cons of existing CA validation, ACME for .onion, self-signed certificates, and innovative approaches such as self-validating certificates using the .onion private key and PKCS#11 modules. The ultimate goal is to seamlessly integrate Onion Services with modern web development.

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Retro Boy: A Highly Accurate Game Boy Emulator in Rust, Now on the Web!

2025-03-20
Retro Boy: A Highly Accurate Game Boy Emulator in Rust, Now on the Web!

Retro Boy is a cycle-accurate Game Boy emulator written in Rust and playable in your web browser. Leveraging wasm-pack for WebAssembly compilation, it uses Web Audio API and HTML Canvas for audio and graphics. Supporting MBC1, MBC3, MBC5, and HuC1 cartridges, it boasts accurate CPU, audio, and graphics emulation, even including GameShark/GameGenie cheat code support. The user-friendly interface features fullscreen mode, pause/resume, selectable color modes, and customizable keymapping. Retro Boy passes a significant portion of Blargg's test ROMs, demonstrating its high accuracy.

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Game

Century-Old Math Conjecture Overturned: New Knot Theory Discovery

2025-09-04
Century-Old Math Conjecture Overturned: New Knot Theory Discovery

Mathematicians have overturned a long-held conjecture in knot theory. It was believed that connecting two different knots would result in a new knot with complexity equal to the sum of the individual knots' complexities. However, researchers recently found a knot simpler than the sum of its parts. This discovery challenges our understanding of knot complexity and offers new insights into fields like protein folding and molecular stability.

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Wordsworth's Open Letter Supporting Copyright Reform

2025-09-04
Wordsworth's Open Letter Supporting Copyright Reform

In 1838, William Wordsworth penned a powerful letter to Serjeant Talfourd, MP, voicing his staunch support for a bill aimed at reforming copyright law. Faced with significant opposition from printers and publishers, Wordsworth declined to petition Parliament, instead choosing to publicly declare his belief in authors' inherent right to perpetual ownership of their works—a right far exceeding the bill's proposed term. He argued this right stemmed from common law and criticized opponents for hiding behind existing statutes, avoiding a defense of this fundamental right. The letter also touches upon his concerns for literary giants like Coleridge, Scott, and Southey, expressing his deep respect and gratitude for Talfourd's efforts.

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Envloader: A Simplified Cross-Platform Env Var Loader

2025-02-22

Frustrated with getting direnv to work on his Windows machine due to restrictive office settings, the author built `envloader`, a cross-platform tool to simplify loading environment variables in the terminal. It supports .env and .envrc files, automatically converting them for your shell. Installation is easy via brew or scoop; simply run `envloader` to load your vars. While lacking advanced features of direnv (like autoloading), it's a quick, effective solution for those needing a simple way to manage environment variables.

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Modular Forms: Unveiling Hidden Symmetries and Infinite Possibilities

2025-02-24
Modular Forms: Unveiling Hidden Symmetries and Infinite Possibilities

Mathematicians have discovered that modular forms, a special type of function, possess infinite symmetries stemming from their unique transformation properties on the complex plane. These transformations replicate the fundamental domain to the entire upper half-plane, relating copies through specific rules. While seemingly simple geometric operations, they hold immense power. Hecke's theory revealed that modular forms reside in specific spaces, allowing us to leverage their infinite symmetries to tackle problems like representing integers as sums of four squares. By converting sequences into generating functions, if the function is a modular form, coefficients can be precisely calculated, unlocking infinite possibilities. This provides a powerful tool for solving numerous problems in mathematics and physics.

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Oracle Security Incident: Hacker Claims Breach and Data Leak

2025-03-31
Oracle Security Incident: Hacker Claims Breach and Data Leak

A hacker, claiming to be rose87168, has allegedly breached Oracle's internal systems and leaked sensitive information, including customer data. The hacker provided evidence including credentials to access Oracle Access Manager, recordings of internal meetings, and internal Oracle configuration files. While Oracle denies a cloud breach, multiple security firms and media outlets have confirmed the data leak, including employee email addresses and customer data. The hacker remains active, releasing more data and threatening further disclosures.

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Tech

Japan's New Law Challenges Apple's iOS Browser Monopoly

2025-08-06
Japan's New Law Challenges Apple's iOS Browser Monopoly

Japan's newly enacted Smartphone Act prohibits Apple's long-standing ban on third-party browser engines on iOS, mandating that Apple allow browsers like Firefox and Chrome to use their own engines instead of forcing them to use WebKit. This legislation aims to foster browser competition on iOS and ensure web apps have access to the APIs and performance needed to compete with native apps. The act also requires fair access to functionally equivalent OS APIs and a choice screen for browsers promptly after first activation. While the act is expected to take effect by December 2025, enforcement is likely to be a lengthy and complex process.

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Tech

Building a Financial Trading Bot with Claude and SnapTrade

2025-05-25

Dino Angelov details building a financial trading bot using Anthropic's Claude and the MCP protocol, integrated with SnapTrade's API. While initially attempting to use Claude to write the MCP server, he found Gemini more effective. He ultimately leveraged the go-mcp framework for faster development, creating functionality to connect brokerage accounts, view portfolios, and execute trades. The author cautions users about the unpredictable nature of LLMs and the potential for accidental trades.

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Development

Why HNSW Isn't the Universal Solution for Vector Databases: The Rise of IVF

2024-12-23
Why HNSW Isn't the Universal Solution for Vector Databases: The Rise of IVF

HNSW, while popular for its speed and accuracy in vector similarity search, faces limitations in large-scale applications due to its memory-intensive nature. This article argues that disk-based alternatives like IVF (Inverted File Index), especially when combined with quantization techniques (RaBitQ, PQ, SQ, ScaNN), offer superior speed and scalability for massive datasets. IVF, by quantizing and compressing vectors, reduces memory footprint and leverages efficient prefetching and sequential scans for significantly faster search. Insertion and deletion costs are also lower. While HNSW excels in smaller-scale applications, IVF with quantization emerges as the more advantageous choice for massive datasets.

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Development vector database

OpenBSD Major Update: FILE Object Structure Becomes Opaque

2025-07-21

OpenBSD recently underwent a significant system update making the internal structure of the FILE object in its standard input/output library opaque. This means programs can no longer directly access the internal structure of the FILE object. The change is far-reaching, affecting libc and many libraries that depend on it, including libcrypto, libtls, and libssl. To ease the transition, some helper symbols are temporarily retained but will be removed in the future. Developers are strongly encouraged to use a snapshot upgrade to avoid potential problems.

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Development system update

Study: Critics, Not Fans, Perpetuate the 'Sophomore Slump' Myth

2024-12-23
Study: Critics, Not Fans, Perpetuate the 'Sophomore Slump' Myth

A new study challenges the common belief that bands' second albums are inherently worse than their debuts. Researchers analyzed thousands of album ratings from both professional critics and fans, finding that critics, not fans, consistently gave lower scores to second albums. This suggests a bias among critics, potentially driven by social conformity and the pre-existing notion of a 'sophomore slump,' rather than an objective decline in musical quality.

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US Govt. Shuts Down Federal EV Chargers, Raises Questions

2025-02-23
US Govt. Shuts Down Federal EV Chargers, Raises Questions

The Trump administration declared electric vehicles 'non-mission critical,' ordering the shutdown of all federal building EV chargers and the decommissioning of newly purchased EVs. This follows the pausing of promised EV infrastructure funding. Thousands of government EVs are affected, and the move could ripple through other federal agencies, raising questions about government efficiency and environmental commitments.

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Tech

Threads: The Quietly Dominant X Replacement

2025-08-24
Threads: The Quietly Dominant X Replacement

Threads, Meta's text-based social media platform linked to Instagram and Facebook, has quietly amassed 400 million monthly active users, rivaling X (formerly Twitter). Its success stems from a focus on community engagement, a calmer atmosphere free from the drama plaguing X, and its ease of use. Interviews with several users highlight how its novelty and community-centric approach fostered vibrant groups, particularly around books and sports. While lacking some X features, Threads' scale, Meta's backing, and ActivityPub integration position it as a strong competitor with a potentially more decentralized future than Twitter ever had.

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Tech

Meta's New AI Feature: Accessing Unpublished Photos Raises Privacy Concerns

2025-06-28
Meta's New AI Feature: Accessing Unpublished Photos Raises Privacy Concerns

Meta is testing a new feature that accesses users' unpublished photos on their camera roll to generate content suggestions, such as collages or themed albums. While Meta claims it's not currently training its AI models on these photos, its user agreement allows analysis of photo content and metadata, with the right to retain and use this information. This raises privacy concerns, especially after Meta acknowledged using publicly posted content since 2007 to train its AI models. Although users can opt out, Meta's data retention policies remain opaque, with some users reporting unauthorized AI-powered restyling of their photos.

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Tech

AI-Generated Bug Reports Flood Open Source Projects

2024-12-24
AI-Generated Bug Reports Flood Open Source Projects

Open source maintainers are drowning in low-quality bug reports generated by AI. These reports often waste valuable time and resources, as AI systems currently lack the ability to understand code and frequently produce false or even malicious reports. Seth Larson of the Python Software Foundation and Daniel Stenberg of the Curl project have both highlighted the issue, emphasizing the strain on volunteer maintainers and the risk of overlooking genuine vulnerabilities. The problem necessitates a community-wide effort to improve funding, enhance efficiency, and develop better filtering mechanisms to identify and handle AI-generated junk reports.

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Development Bug Reports

Copyright Reform: A National Security Imperative

2025-02-01

Anna's Archive, the world's largest shadow library containing over 140 million copyrighted texts, is being used to train LLMs by Chinese companies. The authors argue this poses a national security threat requiring Western nations to reform copyright law. They propose shortening copyright terms and creating exceptions for mass preservation and dissemination of texts, allowing LLM training companies legal access to this data. This is not just an economic issue, but crucial for maintaining a lead in the AI race and even national security.

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OrioleDB's Bridged Indexes: Balancing Speed and Ecosystem

2025-05-30
OrioleDB's Bridged Indexes: Balancing Speed and Ecosystem

OrioleDB introduces bridged indexes, a clever solution to integrate PostgreSQL's rich ecosystem of non-B-tree indexes (like GIN, GiST) while preserving its MVCC-aware, heap-free architecture. A virtual `iptr` column and a lightweight bridge index map PostgreSQL indexes to OrioleDB's internal structure. This allows support for diverse index types. While adding a slight query overhead (one extra lookup), this cost is often negligible for complex indexes (e.g., pg_vector's ANN search). This innovation lets users leverage their preferred extensions without sacrificing performance.

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Development index

A New Twist: Molecular Machines Loop and Twist Chromosomes

2024-12-17
A New Twist: Molecular Machines Loop and Twist Chromosomes

Scientists have discovered a new function of the molecular motors that shape our chromosomes: SMC proteins not only form long loops in DNA but also significantly twist the DNA during loop formation. Published in Science Advances, the research reveals that SMC proteins introduce a left-handed twist of 0.6 turns in each DNA loop extrusion step. This twisting action is conserved across species, observed in both human and yeast cells, highlighting its evolutionary importance. This finding enhances our understanding of chromosome structure and function and provides insights into developmental diseases like cohesinopathies.

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Dalus: AI-Powered Hardware Design Revolution – Founding Engineer Wanted!

2025-05-16
Dalus: AI-Powered Hardware Design Revolution – Founding Engineer Wanted!

Dalus, founded in 2024, uses AI to reinvent complex hardware system design (rockets, satellites, EVs, etc.). They're seeking their first Founding Engineer – a full-stack developer who's a fast learner, thrives on challenges, and contributes across the entire tech stack (frontend to AI models). Backed by YC W25, Dalus already has revenue and works with aerospace, robotics, and defense clients. The role offers a competitive salary ($140k-$200k) and equity (0.5-2.5%), but demands intense work.

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Startup

Count Bernadotte: From Rescuing Jews to Assassination in the Holy Land

2025-09-19

During WWII, Count Folke Bernadotte, a Swedish count, orchestrated the 'White Buses' operation, rescuing tens of thousands from Nazi concentration camps, including many Jews. Ironically, after the war, while serving as a UN mediator attempting to resolve the intractable conflict in the Middle East, he was assassinated by the Jewish extremist group Lehi ('Stern Gang'). This tragic event highlights both the challenges of peacemaking and the manipulation of historical narratives. Recent research has vindicated Bernadotte's heroic actions, restoring his rightful place in history.

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Foqos: Reclaim Your Focus with NFC

2025-01-21

Foqos is a focus app leveraging NFC technology to help users stay on task. Create multiple profiles for different scenarios (work, study, bedtime, etc.). Write these profiles to NFC tags for instant activation with a single tap – no unlocking or app opening required. Foqos is free, private, and open-source forever. No subscriptions, tracking, or data collection. Just pure focus.

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Development focus app

German Navy Ships Sabotaged, Raising Concerns About Russia

2025-02-14
German Navy Ships Sabotaged, Raising Concerns About Russia

Germany's Inspector of the Navy announced Tuesday that multiple German warships were sabotaged. This follows a report by Süddeutsche Zeitung detailing metal shavings found in the engine system of a new corvette. While not explicitly accusing any party, the naval chief warned of a growing threat from Russia. The incidents follow a string of suspicious fires and explosions at German ammunition facilities and factories, raising concerns about potential Russian involvement and the escalating threat to German and NATO security. Investigations are ongoing, but the sabotage points to a potential deliberate act of aggression.

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Former Aspen Ski Exec Calls Corporate Sustainability a Scam

2025-01-12
Former Aspen Ski Exec Calls Corporate Sustainability a Scam

Auden Schendler, former VP of Sustainability at Aspen One (formerly Aspen Skiing Company), exposes the hypocrisy of the corporate sustainability movement in his new book, "Terrible Beauty." He argues that focusing on small-scale fixes like carbon footprints and recycling distracts from effective solutions. Schendler calls for corporations to engage politically, fight the fossil fuel industry, and even suggests suing companies like ExxonMobil, mirroring actions taken by municipalities. He contends individuals should move beyond tokenistic eco-friendly actions and engage in political action, such as advocating for a carbon tax, for meaningful climate action.

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Dhruv Vidyut: Bolt-On E-Conversion Kit for Bikes

2025-01-23

Dhruv Vidyut offers a revolutionary electric conversion kit (DVECK) for bicycles and tricycles. Easily retrofitted, DVECK transforms any bike into an e-bike, providing a comfortable, efficient, and eco-friendly ride on any terrain. The company offers various options and welcomes business inquiries, including bulk purchases, dealership opportunities, and overseas imports.

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TMSU: A Tag-Based Virtual Filesystem for Escaping the Hierarchical Filesystem Nightmare

2025-01-23

TMSU is a tool for tagging your files, offering a simple command-line interface for applying tags and a virtual filesystem providing a tag-based view of your files from any program. It doesn't modify your files; instead, it maintains its own database and mounts a tag-based view. You can tag files, query them using logical operators (and, or, not), and mount a virtual filesystem for access from other applications. This VFS allows for tag management by creating and deleting directories.

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Development virtual filesystem tags

arXivLabs: Experimental Projects with Community Collaborators

2025-06-16
arXivLabs: Experimental Projects with Community Collaborators

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved embrace arXiv's values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who share them. Have an idea to enhance the arXiv community? Learn more about arXivLabs.

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Development

Deterministic Simulation Testing in Rust: A State Machine Approach

2025-08-05
Deterministic Simulation Testing in Rust: A State Machine Approach

The Polar Signals team shares their experience building a new Rust database with a state machine architecture that puts deterministic simulation testing (DST) front and center. Unlike their previous Go database, FrostDB, the new database eschews controlling the existing scheduler and instead uses a state machine model where all core components are written as single-threaded state machines communicating via a message bus. This approach provides complete control over concurrency, time, randomness, and failure injection, greatly simplifying DST implementation and uncovering two critical bugs. While this approach demands extra cognitive overhead, it results in more precise reasoning about system behavior and more reliable code.

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YouTube Experiment: DRM-Only Videos on TV?

2025-03-10
YouTube Experiment: DRM-Only Videos on TV?

Reports indicate YouTube is experimenting with a limited rollout where normal videos only offer DRM-protected formats on the TV (TVHTML5) Innertube client. This affects not only yt-dlp, but also official YouTube TV clients (PS3, web browser, Apple TV), which also only provide DRM formats. Tests show accounts involved can only access DRM-protected versions. This suggests a potential shift in YouTube's copyright protection strategy, potentially impacting how users watch and download videos.

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