[zahlman]

> If of one or more elements within the mosaic are modified, unauthorized access or compromise can be assumed.

... But how is the recipient certain of what the mosaic should be? You can't put the reference photo in the same package, because it's taken after sealing. And if you send it separately, that package is also subject to tampering.

[ZeWaka]

> ...an original photo, which has been taken for example, by a manufacturer, signed and transmitted to a customer via an encrypted communication channel, with a photo of the current state.

[zahlman]

Thanks, glossed over that, and also should have thought of it.

[jrm4]

um, you like text it or email it?