verification tool

Verify any document.

Check whether a document exists on-chain from its SHA-256 hash. The hash is computed in your browser — the file never leaves your device.

c664 accb fda8 43b9 4320 4c01 5afd c6c0 aab8 567e df51 9b2a d05b acff b2cd 9d7d c664 accb fda8 43b9 4320 4c01 5afd c6c0 aab8 567e df51 9b2a d05b acff b2cd 9d7d

9d7d b2cd acff d05b 9b2a df51 567e aab8 c6c0 5afd 4c01 4320 43b9 fda8 accb c664 9d7d b2cd acff d05b 9b2a df51 567e aab8 c6c0 5afd 4c01 4320 43b9 fda8 accb c664

The tool needs an active plan

Pasting arbitrary hashes, uploading files and batch verification each cost a real read against the chain. Your plan covers them.

Did you receive a certificate? You do not need any of this: scan its QR code, or open the link printed on the PDF. That check is free and needs no account.