A pitty you need to scratch the hidden code to get access to the NFT.
The stamp is altered then. So bad
That is very true....that ruins a stamp in my opinion.
Why not just leave the NFT on the stamp instead of transferring onto a metamask wallet? You think the NFT could be stolen by someone from the post office? Also did you give it the light test?
SHine a bright flashlight on the back of the stamp and see if you can see the code under the scratch off. I know some austria crypto stamps were clearly visible once this test was conducted. I will do the same once my stamps arrive....just received the tracking code via emai....I gotta say they they are pretty fast in shipping