SHA-256 · Bitcoin anchoring · InfoCert · Public verification

Public certificate verification

Check a certificate code, SHA-256 hash, Bitcoin TXID or timestamp reference and view available data: PDF certificate, public verification, Bitcoin anchoring or InfoCert timestamp.

View certificate example Verify a timestamp Verifica disponibile in italiano
SHA-256Cryptographic fingerprint of the file used to identify the certified content.
InfoCertInfoCert timestamp data is shown for certificates that include it.
PDF certificateDocument with ID, date, QR, status and technical proof references.
Public verificationPage available to clients, partners, firms and certificate recipients.

Enter the reference you received: certificate code, SHA-256 hash or Bitcoin TXID. The check displays the public data linked to the CopyrightChain proof.

Certificate code

Use the ID shown in the CopyrightChain PDF or QR code to open the public certification data.

Hash SHA-256

Check the cryptographic fingerprint of the file and its match with the available certificate.

Bitcoin TXID

Read the Bitcoin/OpenTimestamps references available in Bitcoin anchoring levels.

Free verification

Verify a timestamp

Select the document and the timestamp file. The document stays on your device: only its digital fingerprint is used to check that the timestamp matches.

SHA-256 · RFC 3161

The file stays on your device and is not uploaded.

Select the .tsr file you received with the timestamp, maximum 10 MB. M7M files are not yet supported by this free check.

What this checks: it checks that the timestamp belongs to the selected document by comparing digital fingerprints. It does not perform full signature and TSA chain validation.