Bitcoin Proof · SHA-256 · Public verification

Public certificate verification

Check a certificate code, SHA-256 hash or Bitcoin TXID and view the available references: proof status, certificate, manifest, OpenTimestamps, Bitcoin data and public verification link.

View certificate example
SHA-256Cryptographic fingerprint of the file used to identify the certified content.
Bitcoin ProofBitcoin/OpenTimestamps references available for the applicable levels.
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 Proof levels.