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PlankDB – A Quantum-Powered Key-Value Store with Grover (Spring Boot)

https://github.com/swampus/plank-db
1•swampus•1y ago

Comments

swampus•1y ago
Hi HN!

We’ve built *PlankDB*, an experimental key-value database that supports quantum-powered search via Grover's algorithm.

It combines: - Quantum search using IBM Qiskit (Grover's Algorithm) - Java 17 + Spring Boot + Clean Architecture - RESTful API with Swagger - Support for local (simulated) and IBM remote quantum execution

The quantum part isn't just a gimmick — it performs a *probabilistic search* over inserted keys using Grover’s quadratic speedup. We also support classical search for comparison.

The project is fully open-source and actively maintained: https://github.com/swampus/plank-db

Would love your feedback — ideas, bugs, or quantum jokes are all welcome!

Prevention of myopia in a near-primate by supplemental indigo light

https://dx.doi.org/10.1016/j.xcrm.2026.102999
1•OutOfHere•3m ago•1 comments

The End of an Athlon

http://www.os2museum.com/wp/the-end-of-an-athlon/
1•userbinator•6m ago•0 comments

Integrating Discord SDK into Eve Frontier [pdf]

https://skemman.is/bitstream/1946/50465/2/integrating_discord_sdk_into_eve_frontier_report.pdf
1•majorchord•7m ago•1 comments

Firefox 155 and beyond will be released in a two-week cadence

https://support.mozilla.org/en-US/kb/firefox-enterprise-154-release-notes
1•Throwthrowbob•7m ago•0 comments

A school planner my brother and I built as high schoolers in Brazil

https://www.peakscore.com.br/demo
1•eduardokato•11m ago•0 comments

China Is Building AI Models of American Voters

https://nataliegwinters.substack.com/p/exclusive-china-is-building-ai-models
2•like_any_other•14m ago•0 comments

A mysterious free AI model is impressing developers. Nobody knows who made it

https://www.businessinsider.com/ox-alpha-ai-model-mystery-2026-8
3•newsomix9xl•17m ago•0 comments

Fast and Hard Code

https://lucumr.pocoo.org/2026/8/22/fast-hard-code/
2•tosh•18m ago•0 comments

How Prompt Caching Works

https://sankalp.bearblog.dev/how-prompt-caching-works/
2•tosh•20m ago•0 comments

4K Video Feedback Fractal Device

https://www.thelightherder.com/
1•tobr•24m ago•0 comments

Rare-Book Sales Are Booming. They're Getting Sliced Up and Fed to AI

https://www.wsj.com/articles/ais-need-for-content-has-put-rare-book-dealers-in-a-bind-1ac5a053
1•1vuio0pswjnm7•25m ago•0 comments

Formal Perf. and Compile Time Guarantees for Compiler Optimization Heuristics

https://arxiv.org/abs/2608.20137
1•matt_d•29m ago•0 comments

Show HN: A bilingual I Ching and BaZi reflection tool

https://eastern-divination.vercel.app
1•hdd-oliver•30m ago•0 comments

A historic El Nino is forming. Here's why scientists are worried [video]

https://www.youtube.com/watch?v=Dcl5Mn373Oc
3•ksec•34m ago•0 comments

Chinese Orgs Building AI Models of American Voters to Test Political Messages

https://twitter.com/nataliegwinters/status/2090814996687237570
4•daniel_iversen•38m ago•1 comments

Before-and-after images show where SpaceX rocket crashed into the moon

https://www.washingtonpost.com/technology/2026/08/19/nasa-images-show-spacex-crash-site-moon/
2•1vuio0pswjnm7•41m ago•0 comments

MailSift – Fast email and MX DNS validator Chrome extension

https://chromewebstore.google.com/detail/mailsift/aipolipnoajkejecehomimoglebbekdm
1•GriveDev•43m ago•0 comments

Fanpage dự án T&T Homes Elite Rivera – T&T Vĩnh Long

https://www.facebook.com/tteliterivera.officialpage
1•phuocphamrealty•44m ago•0 comments

Endangered Language

https://en.wikipedia.org/wiki/Endangered_language
1•Eridanus2•45m ago•0 comments

Crafted NTFS File-System Image Allows Root Access on Linux with NTFS3 Driver

https://www.phoronix.com/news/NTFS3-Vulnerability-For-Root
1•isodude•49m ago•0 comments

Level up your life by starting a side quest

https://www.npr.org/2026/08/19/nx-s1-5936241/feeling-restless-level-up-your-life-start-side-quest
1•andsoitis•50m ago•0 comments

Using Claude hosted agents to solve open source bugs and perf improvements

https://github.com/marketplace/jaipilot
2•surajkrajan•55m ago•1 comments

What Is Braille?

https://afb.org/blindness-and-low-vision/braille/what-braille
1•andsoitis•57m ago•0 comments

Vero: Can AI Agents Build Formally Verified Software Repositories?

https://vero.verina.io/
1•matt_d•58m ago•0 comments

DEF Con 19: Skunkworks: Daniel Beckwitt on Bitcoin in 2019 [video]

https://www.youtube.com/watch?v=Yj2blBX2iBw
1•nodesocket•59m ago•1 comments

Are You in Danger of Becoming a Robot?

https://nautil.us/are-you-in-danger-of-becoming-a-robot-1284114
1•Brajeshwar•59m ago•0 comments

Show HN: Live Sports

https://tipoffwatch.com/sports
1•buffer_overlord•1h ago•0 comments

Moonlander Ergonomic Keyboard

https://www.zsa.io/moonlander
1•andsoitis•1h ago•0 comments

The Hidden Pipeline Behind AI Search Visibility

https://medium.com/the-discovery-collective/the-hidden-pipeline-behind-ai-search-visibility-d4e9c...
1•rakeshmenon•1h ago•1 comments

Compile-Time Improvements in LLVM 23

https://aengelke.net/llvm23-ct.html
1•matt_d•1h ago•0 comments