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  2. Science Is Open Software(jepedersen.dk ↗)
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  9. The Farnese letter(simonklee.dk ↗)
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  10. Photon-Emission-Guided Laser Fault Injection Enables RP2350 Secure Debug(ledger.com ↗)
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  11. Show HN: LiveWorld – Every 24/7 YouTube live camera on one globe(liveworld.info ↗)
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  12. Show HN: Cactus Needle 3: 8-29MB automation models can match DeepSeek V4 Flash(cactuscompute.com ↗)
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  13. The first new cat species discovered in 100 years(nationalgeographic.com ↗)
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  14. OpenJev(openjev.com ↗)
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  15. Cache-to-Cache: Direct Semantic Communication Between LLMs (2025)(arxiv.org ↗)
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  16. How OpenAI Used Its Own LLMs to Design Its Jalapeño Chip(ieee.org ↗)
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  18. Cyclomatic Complexity in C#(ndepend.com ↗)
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  19. LispBM is a concurrent Lisp for microcontrollers with message passing(lispbm.com ↗)
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  20. Minimal Phone 2(minimalcompany.com ↗)
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  21. Warez: The Infrastructure and Aesthetics of Piracy (2021)(archive.org ↗)
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  22. Two parallel neural ectoderm progenitors contribute to the developing brain(newscientist.com ↗)
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  23. Inside ZCode: Silently uploading your Git history to the cloud(ferstar.org ↗)
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  24. Alibaba open-sources AI model that can detect cancer and nearly 150 conditions(scmp.com ↗)
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  25. How SpaceX streamlined the Raptor engine(construction-physics.com ↗)
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  26. C++26: Trivial infinite loops are no longer undefined behaviour(sandordargo.com ↗)
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  27. Gemini hacked three companies in first known breakout by Google's AI(reuters.com ↗)
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  28. The Implications of Linguistic Illegibility for LLM Security(arxiv.org ↗)
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  29. Column built an issuer processor from scratch(column.com ↗)
    6comments
  30. A search-and-inference database from scratch in pure Zig(antfly.io ↗)
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Column built an issuer processor from scratch

23 pointsby 2d agocolumn.com
6 comments
2d agoHN ↗

founder of column here - happy to answer any questions! We launched a bunch more stuff today as well, column.com/launch

2h agoHN ↗

Can one use column to support or build escrow type services?

Also congrats on the launch!

2h agoHN ↗

I am one of the engineers who built this. Column is an OCC-chartered bank with its own in-house built banking core, so the processor runs on the same core as our ledger and payment rails.

We have direct integrations with Visa and Mastercard. It supports credit, debit, charge, fleet, prepaid, and stablecoin-backed programs, and what you'd expect from a mature issuer processor out of the gate: 3DS, digital wallets, Level 3 data, disputes, spend controls, and card manufacturer integrations.

Happy to answer questions!

2h agoHN ↗

This looks like a self funded company. The founder is already a billionaire I guess.

(So transitively, funded by Plaid being a successful company in a similar space, and its founder then having capital to do other things)

41m agoHN ↗

Plaid was a security nightmare for years before they were basically forced at gunpoint to get it together and even then it just seems from the outside that they are better. I'm not sure I would trust any company by the founder.