✍️ Make fingerprint
Select a document to generate its unique fingerprint (SHA-256 hash). This happens completely in your browser. Your file is never uploaded.
Once the fingerprint is generated, you can optionally publish it to the Solana blockchain as tamper-proof evidence.
How does it work?
1. Select your document and click the "generate fingerprint" button.
2. Enter your token (or buy one if needed).
3. Click
"Publish hash" to store it on the blockchain.
4. Download your PDF certificate.