Verifying assets & documents

Valuables and files are certified differently from mass-produced goods, and their verdicts use different wording.

Scanning an asset or a document code

Scanning is identical — the app recognises the kind of code automatically and shows a certificate view instead of a product view. It contains the brand, the item’s name or reference, its category, the date it was certified, and for assets the number of ownership transfers recorded.

Verdict	Meaning	What to do
Certified	The record is registered and its digital signature matches — nothing has been altered.	Trust it. Use View document to open the certified file.
Not registered	No certified item matches this code.	Treat the certificate as invalid.
Verification failed	The record exists but does not match its signature — the data has been tampered with.	Do not trust it. Report it to the brand immediately.
Archived	The record was withdrawn by its owner and is no longer active.	Ask the brand whether the withdrawal was intentional.

Checking a file you already have

Purpose. Confirm that a document you received — a certificate, a contract, a photograph — is the exact file the brand certified, even if it reached you with no code at all.

1. From the home screen, choose Verify content.
2. Select Choose file and pick the document from your device.
3. The result appears at once.

Expected result. Certified if the file matches a certified record exactly; otherwise the file is not registered.

Note · Your file is not uploaded

The fingerprint is computed on your own device and only that value is sent. The document itself never leaves your phone or computer, which makes this safe to use with confidential material.

Choose a file, or paste a link.

A certified document.

Checking a link

Paste a public web address into Public link and select Verify. AuthPlus downloads the file and checks its fingerprint for you.

Message	Meaning	Resolution
URL must be a valid http(s) link	The address is malformed or uses an unsupported scheme.	Paste the full address beginning with http:// or https://.
Could not download the link	The file is unreachable, requires a login, or the server refused.	Use a publicly accessible link, or download the file and check it directly (Checking a file you already have).
No certified content for that hash	The file is not registered with AuthPlus, or it has been modified since certification.	Ask the issuer for the original certified document.

Note · Size and time limits

A linked file is downloaded up to 100 MB with a 30-second time limit. Very large or slow-serving files should be downloaded and checked locally instead.