2. Ethical Cold Outreach (blog.val.town)

Stop misrepresenting AI slop as your own work

Learn how to maintain integrity in your outreach efforts and avoid the pitfalls of misrepresenting AI-generated content as original work. This piece emphasizes the importance of authenticity in professional communication.

3. Show HN: KidScreen, a finite YouTube shelf chosen by parents (kidscreen.app)

KidScreen is a free, parent-curated YouTube video shelf for kids. Add only videos you approve—no search, no endless feed, and no algorithmic feed.

KidScreen offers a safe YouTube experience for children by allowing parents to curate a selection of approved videos, eliminating unwanted content and distractions. It’s an appealing solution for families looking to control their kids’ screen time effectively.

5. Show HN: OJCP – an open protocol for agent-consumable job data (ojcp.dev)

The open standard for agent-consumable job feeds. Discover, reason over, and act on job opportunities with AI agents.

OJCP aims to streamline the job application process by providing an open protocol for managing job data that can be easily consumed by agents. This initiative seeks to reduce the chaos of current application methods, which often involve scraping and bot-blocking, ultimately improving the experience for both candidates and employers.

6. The Ultimate Horse (worksinprogress.co)

Selective breeding has pushed horses to the limits of biology. But at what cost?

Selective breeding has transformed horses, pushing them to their biological extremes. This raises important questions about the implications for their health and well-being.

8. The Bit Player: My Father with Steve Zissou (www.theparisreview.org)

July 27, 2026 – “Just as I was getting back to my desk, the phone rang. It was Bill Murray, and he had a question.”

A surprising phone call from Bill Murray leads to a personal reflection on the author’s father and his connection to Steve Zissou, the iconic character from “The Life Aquatic.” This brief encounter hints at a deeper story worth uncovering.

9. I built a jellyfish laboratory in my backyard [video] (www.youtube.com)

Join me as we tour my backyard jellyfish laboratory! The Jellyfish Compendium Website: https://www.jellyfishcompendiumproject.com0:00 Introduction0:20 How di...

Take a peek inside a unique backyard setup dedicated to jellyfish research and care. Discover the insights and experiences of building a personal lab for these fascinating creatures.

10. Only 2.6% of the most visited websites have fully valid HTML (validatehtml.com)

We ran our validators over the Tranco top 5,000 sites. 90.5% of the 2,655 we could reach break the HTML spec. Full ranking of every error, with real frequencies.

A recent analysis of the top 5,000 websites reveals that a staggering 90.5% fail to comply with HTML specifications. The report details the types and frequencies of errors found, highlighting the widespread issue of invalid HTML across popular sites.

11. DEF CON crowd suspected in fake-hotspot attack on Delta flight (arstechnica.com)

FBI Atlanta confirms it's looking into the incident, no arrests made.

An investigation is underway by the FBI into a fake-hotspot attack on a Delta flight, with suspicions pointing towards attendees of the DEF CON hacking conference. So far, no arrests have been made in connection with the incident.

12. Solving the Shortest Vector Problem in $2^{0.6039n}$ Time via Mid-Point Hessian (arxiv.org)

We present randomized algorithms for the shortest vector problem (SVP). For the $n$-dimensional lattice $\mathcal L$, our algorithms solve SVP in time $2^{0.6039n+o(n)}$ classically and $2^{0.5411n+o(n)}$ quantumly and space $2^{0.5n+o(n)}$, improving the previous best algorithm running in $2^{n+o(n)}$ time and space of Aggarwal, Dadush, Regev, and Stephens-Davidowitz [STOC'15].
Our algorithms heavily use the property of the Hessian of the periodic Gaussian function at the half shortest vector: For a shortest vector $v \in \mathcal L$, the Hessian at $v/2$ has the eigenvector close to $v$, which can be used to recover $v$ using the (preprocessing) bounded distance decoding algorithm. Given the periodicity modulo $\mathcal L$, the candidate midpoints are indexed by the parity classes in $\mathcal L/2\mathcal L$. Our algorithm searches for the class of a shortest vector by estimating the corresponding Hessians using discrete Gaussian samples.
We optimize the algorithm using random sublattice cosets and various sampling technique, achieving the final complexity. The optimization techniques may be of independent interest.

New randomized algorithms significantly reduce the time complexity for solving the shortest vector problem in n-dimensional lattices, achieving improvements for both classical and quantum approaches. This advancement surpasses the previous best known methods, making it a notable development in computational complexity and lattice-based cryptography.

13. Show HN: Programmable timer web app (for gym workouts or stretching sessions) (timer.jotaen.net)

A programmable timer web app, e.g. for gym workouts or stretching sessions. Timer programs are specified in a plain and flexible text format, and can be stored or shared via URL or QR code.

A new web app allows users to create customizable timers for gym workouts or stretching sessions, featuring countdowns, audio cues, and the ability to program unique routines. It’s particularly useful for those who follow repeatable sequences and want a more tailored workout experience.

14. YC startups are abandoning .com (www.orangecrumbs.com)

An interactive look at how the domain endings and lengths used by Y Combinator companies changed across twenty years of cohorts.

Y Combinator startups are increasingly moving away from traditional .com domains, with a shift in domain endings and lengths observed over two decades. This analysis reveals the evolving trends in online branding among these innovative companies.

17. Commodore 8-Bit 5¼" Disk Images (www.masswerk.at)

Presenting a new (web) tool, also a general discussion of Commodore 5¼" disk images.

A new web tool for handling Commodore 5¼” disk images is now available, along with insights into their usage and significance. This resource could be valuable for retro computing enthusiasts looking to preserve or interact with classic software.

18. SpaceXAI: Grok 4.6 (openrouter.ai)

Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM. $2 per million input tokens, $6 per million output tokens. 500,000 token context window. Includes independent benchmarks from Artificial Analysis.

SpaceXAI’s Grok 4.6 stands out for its advanced capabilities in coding and STEM tasks, featuring a large context window and competitive pricing for usage. Independent benchmarks also validate its performance, making it a noteworthy tool for knowledge work.

24. 'The Cheese and the Worms' by Carlo Ginzburg Review (www.historytoday.com)

A new translation marks the 50th anniversary of Carlo Ginzburg’s pioneering microhistory The Cheese and the Worms: The Cosmos of a Sixteenth-Century Miller.

A recent translation celebrates the 50th anniversary of Carlo Ginzburg’s influential work, which offers a detailed look at the life of a 16th-century miller and his unique worldview. This review examines the book’s impact on the field of microhistory and its enduring relevance.

27. Show HN: Meteor shower, planet alignment, eclipse kit (lifesprites.com)

Say what you need. Your sprite builds it. Tasks, routines, trackers, and alerts, set up from a conversation.

A new interactive tool helps you locate visible planets and count shooting stars during a meteor shower, all tailored to your location. It also includes a model of the solar system for a better understanding of celestial events.

30. Bb: The IDE that builds itself (getbb.app)

bb can control, customize, and automate itself, laying the groundwork for your own software factory.

Bb offers a self-managing integrated development environment that allows users to tailor and automate their coding processes, paving the way for personalized software development.

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