Blockchain verification
Verify document
Upload your eCertificate PDF to verify its authenticity. The digital fingerprint is compared against the data secured on the Arbitrum blockchain (Ethereum L2).
Drag the PDF file here or click to select
PDF, max. 20 MB
How verification works
1
Upload PDF
Drag the eCertificate PDF into the upload field or select it from your device.
2
Compute hash
The SHA-256 fingerprint of the document is computed directly in your browser — the document never leaves your computer.
3
Blockchain check
The fingerprint is compared against the data secured on the Arbitrum blockchain.
