Prove You Created It First
Ever needed to prove when you created something? ProveChain creates tamper-proof timestamps of your files—perfect for protecting your work, proving delivery dates, or defending your ideas.
. Your files never leave your device
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:
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 Forever
Create unlimited proofs.
No signup required.
MIT licensed.
100% Private
All hashing happens locally.
Your files never leave your device.
SHA-256 Secure
Industry-standard cryptographic hashing.
Same as used by Git.