Proofisy
Integrity Check
& Proof of Existence
Prove your files exist.
Verify they remain unchanged.
🔨 Generate fingerprint & certificate
Step 1
DePEx & Certificate details
(Configure these optional settings only if needed).
DePEx (Decentralized Proof of Existence)
Blockchain proof powered by Casper Network
To activate DePEx and register your file's digital fingerprint on the blockchain, switch DePEx to ON.
Certificate details
These optional details will be included in your Proofisy certificate.
Step 2
Drop your file
(Select the file you want to fingerprint)
Drop original file here
or choose a file manually
Any file type: image, text, audio, video...
(Archive files (ZIP, RAR, 7Z...) available in PRO mode)
🔍 Verify Integrity
Free for everyone — no subscription required.
Proofisy certificate
Drop certificate here
Only Proofisy JSON certificates are accepted
Original file
Drop original file here
Any file type: archive, image, text, audio, video...