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For more than 25 years, the origin of some numbers used in cryptography that protects our online communications was unclear. On October 16, Anthropic said Claude had traced their origin. They were not secret passwords: they came from a computer clock in the 1990s.
Researchers had looked for a phrase that might have been turned into those numbers. Claude tried a different path, comparing published numbers with the output of a number-generating program commonly used at the time.
Several numbers could be reproduced with the old program lrand48, and the timestamps used to initialize it could be traced. Anthropic says the first finding took less than 30 minutes.
What Claude found was the origin of the numbers. Anthropic says it did not discover a weakness in the cryptography or a new way to attack it. Questions about some numbers remain open.
AI devised a way to investigate a longstanding question, wrote checks, and tested its answer against public numbers. That process has sparked discussion among technologists.
anthropic.com ↗ ↗What stands out in today's story about Claude investigating a longstanding cryptography mystery is not that it already knew the answer.
It considered an old program, checked the published numbers one by one, and tried another approach when they did not match.
AI moved through that back-and-forth itself and left an answer others could test. That is the interesting part.
In a separate study released the same day, Anthropic also used Claude to propose quantum-circuit designs, evaluate them automatically, and search for more efficient designs.
When people set the question and define how to test an answer, AI can generate candidates, check them, and move on to the next. This research pattern could carry over to product prototyping and improvement.
AI is moving from a tool that supplies answers to a partner that helps investigate and test them.
We document the products we build with AI, along with the context, validation, and lessons behind them.
Three recent playlist additions, three Japanese picks and two global picks, selected after checking their content.
Torigoe's PicksAnimating Illustrator Artwork with Prompts: Claude and After Effects
The description lists beginner and intermediate Illustrator courses, a book, and related resources. No caption excerpt is supplied, so it does not establish the Claude–After Effects workflow or model details suggested by the title.
Torigoe's PicksVideo Editing with Claude Code: PR Clips, AI Avatars, and Revisions
The creator describes delegating editing to Claude Code for a 15-second promotional clip, HeyGen avatar footage, and character videos made with Google Flow. The walkthrough includes actual instructions, failed attempts and fixes, and turning the workflow into reusable skills.
Torigoe's PicksFive AI Stories This Week: Image Generation, SynthID, and AI Shopping
This roundup revisits five AI stories covered October 5–10, including image generation, watermark detection, shopping, and agents with email identities. It discusses reported capabilities and incidents, then recommends specifying completion criteria, permission boundaries, and when an agent should stop and ask.
Japan PicksAn AI Engineer’s Software Tour: Apps and Services Used at Work
An AI engineer tours the apps and services they use for work as of October 2026. The description groups them by languages and frameworks, AI tools, editors and terminals, development infrastructure, creative production, business tasks, and Mac setup.
Japan PicksThe Uploader’s Overview of X Subscription’s Five Plans and Features
The uploader claims that X Subscription combines Grok, Cursor, Grok Bot, and X Premium into five plans, including a free tier. The description says the video covers plan prices, available features, registration steps, and points to watch.
Japan PicksThe Uploader’s Comparison of Gemini 4 Argon with ChatGPT and Claude
The uploader claims Gemini 4 Argon was released and compares Gemini, ChatGPT, and Claude on the same population research and slide-making assignment. The description also covers benchmark interpretation, the uploader’s experience with Spark, service integration and usage conditions, and their preferred division of tasks.
Global PicksBuilding an Animated App with Claude Opus 5.5
The uploader builds an animated mobile app with Claude Opus 5.5, using Higgsfield Seedance 2.5 for visual assets and Mobbin MCP for screen references. The listed steps cover app structure, animation improvements, and motion responsive to phone tilt.
Global PicksClaude Code Course: From Engineering Plan to E-commerce Storefront
The course uses a luxury e-commerce storefront to teach a more structured Claude Code workflow. Its chapters cover foundations, CLAUDE.md, permissions, Plan Mode, reusable skills, shipping the store, and subagents working in parallel.
Updated every two days · Last updated 2026-10-16
Claude designs more efficient quantum circuits
Anthropic asked Claude to design eight types of quantum circuits and evaluated the results automatically. Some designs used substantially fewer resources than previously published examples, it says.
www.anthropic.com ↗ ↗No new article was verified in this category today.
GitHub releases agentic autofix for code scanning alerts
GitHub made Agentic autofix generally available. Copilot can inspect related code and propose fixes for code scanning alerts.
github.blog ↗ ↗Gemini Notebook adds 60-second video study overviews
Google highlighted three Gemini Notebook study tools, including Short Video Overviews that explain course material in about 60 seconds.
blog.google ↗ ↗Suno shows two artist-led visual works built from v6 songs
Suno described two productions in which a dancer and a singer-songwriter used v6 songs as starting points for distinct visual works.
about.suno.com ↗ ↗No new article was verified in this category today.
GitHub Copilot spans repositories in Slack and Teams
GitHub updated Copilot in Slack and Teams so a single conversation can reference multiple repositories.
github.blog ↗ ↗AI Product Architect
Over 25 years in UI/UX design, product development and business development. Founded and led a company with a team of around 100 people.
Currently planning, designing and developing new products using AI.
Through AI Signal, I share discoveries from developing new products and the possibilities AI opens up for the future, while trying the latest AI technologies firsthand.
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