Sealed Forever
Write your message into the blockchain. Keep it forever.
What it does
Write a love letter and we inscribe it permanently into the Bitcoin blockchain. Share it with a beautiful link, verifiable on-chain forever.
A keepsake no fire, flood, or forgotten password can ever take away. Readable by anyone, erasable by no one. Compose your 300 characters and watch them take shape on beautiful stationery — choose the paper, choose the hand it's written in. After a simple card payment, we write your full letter into a Bitcoin transaction. No wallet, no crypto knowledge — we handle the chain. You receive an elegant page to share, linked to the transaction itself — proof that your words live on the blockchain. “Paper burns. Photos fade. Companies shut down. The Bitcoin ledger is copied across tens of thousands of machines in every corner of the world — and it has never lost a single word entrusted to it.” Your…from sealedforever.com
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Commerce · 26d ago · equitybee.com
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io
- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com