2026-07-20
Top stories
- Counterexample to the Jacobian Conjecture posted with help from Claude Mathematician Levent Alpoge posted a verifiable counterexample to the 85-year-old Jacobian Conjecture, developed with Anthropic's Claude.
- Hacker wipes Romania's national land registry after failed extortion A hacker destroyed Romania's land-registry systems and backups after its extortion demand was refused, halting the property market for a week.
- Moonshot AI suspends new subscriptions on Kimi K3 demand Moonshot AI suspended new subscriptions due to demand for Kimi K3, its 2.8-trillion-parameter model whose open weights arrive by 2026-07-27.
- Ollama raises 88M USD for local and hybrid open-model inference Ollama raised 88 million USD for local and cloud inference serving 8.9 million developers, targeting hybrid inference across on-device and cloud.
AI
Agentic coding
Security
Developer tools
- The last MPEG-4 Visual patent has expired Brazil's last MPEG-4 Visual patent expired, removing all remaining patent claims on the Xvid and DivX codec family, simplifying open-source use.
- Minecraft Java Edition switches from GLFW to SDL3 Minecraft Java Edition switched from GLFW to SDL3 for window management, adding native Wayland support and physical-key input event bindings.
Languages and runtimes
Engineering posts
Hacker News
- Show HN replaces a 120k USD bowling scoring system with 1,600 USD of ESP32s A Show HN project replaced a 120,000-USD bowling-scoring system with about 1,600 USD of ESP32 microcontrollers and wireless messaging.
- Study reports AI advice lowered accuracy while raising confidence A study found participants receiving AI advice on a task were less accurate yet more confident in their answers than those without advice.