A Bangladeshi company is promoting a technology aimed at one of the quieter causes of visa refusal: documents that cannot be checked. The Visible Digital Seal (VDS) is a two-dimensional code carrying the issuing organisation's digital signature, so that any alteration to the document becomes detectable.
The technology is developed by Relief Validation Limited (RVL) and was presented at a seminar at the firm's head office in Gulshan, Dhaka.
The problem it is aimed at
Visa applicants submit bank statements, certificates and salary records. Those are easy to forge and hard for a foreign mission to verify quickly.
The consequence is the part worth noticing. Because a small number of applicants submit fraudulent documents, every applicant is examined more closely — and genuine students and workers are sometimes refused as a result.
Germany's ambassador to Bangladesh, Rüdiger Lotz, described that mechanism from the other side of the desk: a few forged or unverifiable documents force officers to scrutinise every application, which takes more time. He said technology of this kind could help officers decide faster.
How it works
The seal is a two-dimensional code whose contents are signed using Public Key Infrastructure. An officer scans it — the article says verification takes seconds through an app called VeriQR — and learns two things: who issued the document, and whether it has been changed since.
The useful property is that even a minor alteration breaks the seal. And once an issuer has verified information and applied the seal, the issuer cannot alter it either. It works on paper and on PDFs, and can be integrated into existing document management systems.
That last point separates it from an ordinary QR code, which typically just points somewhere. A VDS carries signed data, so it can be checked without contacting the issuer by email or phone — which is exactly the step that makes verification impractical at the volumes a visa section handles.
The framing worth repeating
RVL chief executive Rashed Mahmud said visa rejection rates for Bangladeshi applicants are rising, and put the cause plainly: the root problem is a lack of trust in documents, not in applicants.
That distinction matters because the two call for completely different responses. Distrust of applicants is answered with more interviews, longer processing and higher refusal rates. Distrust of documents can be answered with a verification mechanism — and the second is a solvable problem.
What would have to be true
RVL says the technology is already used in Bangladesh by banks, universities and government bodies, and the applications extend beyond visas to medical certificates, police clearances, insurance and marriage certificates.
But a seal is only as useful as its acceptance. For this to reduce refusals, foreign missions have to accept VDS as verification, and the issuers an applicant actually uses have to apply it. A seminar attended by one ambassador is a start on the first and says nothing about the second.
The honest summary is that the diagnosis is persuasive and the deployment is unproven. Worth watching whether any mission announces that it accepts the seal — that would be the moment this becomes news rather than a proposal.
