ProveChain Watermark
ProveChain
ProveChain

Prove You Created It First
Anchor It To Blockchain

If someone asked you to prove when you wrote that document, could you?

ProveChain creates tamper-proof timestamps that hold up under scrutiny.

100% Private
We never store your file contents

What is ProveChain?

Think of it like a notary stamp, but for your files. When you create a proof, ProveChain generates a unique fingerprint of your work with a timestamp. This proves you had those exact files at that exact moment, and no one can fake it.

Perfect for:

Freelancers proving work delivery
Inventors protecting their ideas
Contractors showing completion dates
Anyone who needs "I created this first"

Who Can Benefit from ProveChain?

Content Creators

"Protect my creative work before sharing"

YouTubers, photographers, designers, and artists timestamp their work to prove originality

Anyone

"Peace of mind for anything I create"

You never know when you'll need proof. Timestamp anything, just in case

Authors & Researchers

"Prove when I wrote it, before I share it"

Writers, lawyers, musicians, researchers. Anyone creating documentation or original work

Free Hashing

Create unlimited proofs.
No signup required.
MIT licensed.

Privacy First

Files are hashed, never stored.
We only keep cryptographic fingerprints.

SHA-256 Secure

Industry-standard cryptographic hashing.
Same as used by Git.