How to check if a file matches its proof

Start with the same file

To verify, you need the exact same file that was originally registered. Drop it into the verification page, and it will create a fingerprint and compare it to the saved record.

If the file was changed in any way — even just re-saving or converting it — the fingerprint will be different and the check won’t match.

What a match means

If the fingerprints match, the file you checked is identical to the one that was originally registered. This confirms two things: the file hasn’t been altered, and it existed at the time shown on the record.

The verification page will also show when the proof was created and whether the blockchain confirmation is complete.

• Match — the file is the same as the one on record.
• No match — the file is different, or you’re checking the wrong version.
• A valid proof depends on the file contents, not the filename.

What do "pending" and "confirmed" mean?

"Pending" means the proof has been saved and is waiting for final blockchain confirmation. This usually takes 1 to 2 hours. "Confirmed" means the process is complete and the record is permanently anchored.

Both refer to the same proof — the difference is just whether the final confirmation step has finished. Your proof is valid in both cases; "confirmed" simply means it’s now independently verifiable on the blockchain.