Hello, Product Hunt! I'm building AETERNA — a Digital Time Capsule

Hello everyone! 👋

I'm an independent builder and the creator of AETERNA.

AETERNA is a non-custodial digital time capsule protocol designed to help people preserve what matters and share it with the future.

Imagine being able to seal photos, videos, documents, or personal messages today and make them accessible at a chosen time in the future.

That's the idea behind AETERNA.

Privacy is at the heart of AETERNA

• Content is encrypted locally in the creator's browser using AES-256-GCM before upload.

• Encrypted capsule data is uploaded through Irys, with Arweave as the underlying storage layer.

• The app checks trusted UTC time before allowing a capsule to open.

• When opening is permitted, content is decrypted locally in the recipient's browser.

• Recipients need only the private capsule link — no wallet connection is required.

A project built independently

AETERNA has been a long journey of experimentation, learning, and persistence.

The first version is now live. I'm continuing to test and improve its reliability, usability, and overall experience.

The project is still at an early stage. It has not yet undergone large-scale public user testing or high-volume load testing, and feedback from the community is especially valuable.

My long-term vision is to make digital time capsules accessible to more people, including those who prefer traditional payment methods over crypto wallets.

I'd love to connect with other builders, exchange ideas, and learn from your experience.

Here's a question for you:

What would you preserve today so that someone could discover it years from now?

🌐 Website: https://aeternacapsule.com

Thank you for welcoming me into the Product Hunt community!

— AETERNA