Your generated images already carried a declaration of how they were made. A declaration is a statement, and a statement can be edited — anyone with a metadata tool can change it, and nothing in the file would say so.
Images exported from Qamera are now signed. The record of origin is sealed with a cryptographic signature and a trusted timestamp, so a checker can tell whether the file still matches what left our platform, and when it left.
The provider's own record is preserved, not replaced. When Google, OpenAI or BytePlus sign what their model produced, that signature is carried forward inside ours as an ingredient rather than overwritten. A file that passed through both keeps both accounts of its history, and the chain between them is verifiable.
Your image is untouched. Signing does not re-compress the photo. Every pixel is exactly what the model produced; the file grows by roughly thirteen kilobytes.
What a public checker will tell you today
If you upload one of these files to a public checking tool, it will show the content correctly — that the image was generated with an AI tool, which tool, the date, and Issued by Qamera AI — and it will describe the issuer as unrecognised.
That is worth explaining rather than leaving you to find it.
Public checkers recognise a short list of certificate issuers. Ours is not on it yet: joining requires a formal conformance process that we are pursuing. Until it completes, a checker can confirm that the signature is intact and the timestamp is genuine, but it cannot vouch for who issued the certificate — so it says so.
Unrecognised is not the same as invalid. Checkers reserve that word for a file that no longer matches its signature, which is precisely the case this feature exists to make visible. The signature on your exports verifies; only the issuer is unfamiliar to the checker.
The conformance process is under way. We are going through the formal review required to join that list. Once it completes and our certificate comes from a recognised issuer, every image exported from that point on will be recognised by a public checker straight away, with no extra step on your side. We will update this entry when that happens.
Scope
- Exported originals only. The smaller preview sizes shown inside the application are display copies and carry no signature. Use the download button for the signed file.
- Photos you upload yourself are signed too, but they claim nothing about AI. Their record says only that this platform converted the file — we know how it reached us, not where the picture came from, and a stronger claim would be untrue about your own photograph.
- Once an image is uploaded to a shop, whether the signature survives is up to that shop. Some e-commerce platforms re-process product images and discard everything embedded in them. Nothing inside a file can prevent that.
- Images exported before this release are unchanged.