QuantumCloud

Prove something existed and keep that proof safe even from the future

Create Your Proof

Enter your text or idea

Text proofs hash exactly what you paste (including spaces and line breaks).

What It Is

QuantumCloud creates cryptographic proofs of existence directly in your browser. Using SHA-512 hashing, it generates a unique fingerprint of your content together with a claimed creation time and Internet Computer consensus time attestation, demonstrating that the content existed at a specific point in time.

What It Solves

Protect your intellectual property, ideas, and creations. Establish priority for inventions, creative works, or business concepts. All without revealing your content to any third party or central authority.

Who It's For

Inventors, writers, artists, researchers, entrepreneurs, and anyone who needs to prove they had an idea or created something first. Perfect for protecting work before publication or patent filing.

How It Feels to Use

Simple, instant, and empowering. No accounts, no uploads to servers, no waiting. Your content never leaves your device. You get a shareable proof link immediately, giving you peace of mind in seconds.