Upload any file and watch it get cryptographically hashed, timestamped and logged — exactly as it would in a real Provlyn vault.
Demo certificates are not legally valid. Start a free trial for real protection.
1
Upload file
2
Hash & timestamp
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View certificate
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Drop your file here
PDF, Word, Excel, images or video — up to 10MB
Your file never leaves your device
Provlyn hashes your file using SHA-256 directly in your browser. Only the cryptographic fingerprint is ever transmitted. Your IP stays completely private.