Preserving and Protecting Provenance in the Age of AI.

We are entering an era where generative AI can perfectly counterfeit your voice, alter your video footage, manipulate your historical records, and poison your data. At the same time, central cloud providers reserve the right to scan your private memories, lock your accounts, or alter their terms at a moment's notice. The internet is losing its baseline of trust.The Diamond Digit™ addresses this by giving your files a cryptographic seal that's verifiable on your own terms — sealed and opened on your own device, with nothing readable by anyone else, even when you choose to send a link.

THE EVOLUTION OF TRUST

For centuries, people have relied on physical means to deter fraud and manipulation — from wax seals and ciphers to hallmarks and stamps. Diamond Digit brings that same principle into the digital age: a cryptographic seal that shows, unmistakably, whether a file has been altered since the moment it was sealed.

THREE TIERS OF THE DIAMOND

🔶 AMBER — free, for personal use. Seal, send, and open files directly in your browser. No account, no cost. Launch in Autumn 2026.Sapphire and Diamond — built for organisations and institutions with more demanding requirements — are in early development. Details to follow as they're ready.

ABSOLUTE PRIVACY

Sealing and opening a file always happens on your own device — the encryption and decryption never leave your browser. When you choose to send a file via a link, our server stores only the encrypted result; it never holds a key, and never has anything readable. We can't see your files even if we wanted to.

FEEDBACK WELCOME

Diamond Digit's Amber free tier will be live soon for early testing. We'd genuinely value your feedback — please reach out at jason {@} archiveintelligence.io.

Mission

The Archive Intelligence Foundation is a UK non-profit company limited by guarantee. Our mission is to preserve, protect, and prepare human knowledge to make sense of the archive.

© 2026. Archive Intelligence Foundation
All rights reserved.

Diamond Digit™ is a trademark of the Archive Intelligence Foundation Ltd, with trademark registration pending.

Archive Intelligence Foundation Ltd is a Company Limited by Guarantee registered in England and Wales. Company Number: 17386953.
Registered Office: 5 Cornfield Terrace, Eastbourne, East Sussex, BN21 4NN. United Kingdom. Planet Earth. 🌍