During the last #hivemeetupvienna 
"Crypto Stamps, what's that?", you might ask. Valid question: Crypto Stamps are stamps which exist in the physical world as well as on a blockchain, as NFT. The physical stamp is also rather high-tech (for a stamp at least), since it also features a NFC tag, which contains meta-data about the NFT including the link to where you can view it and play a bit with them in AR.
Postal services are not really know to be on the forefront of technology, but this is actually the version 4.0 of Crypto Stamps. The Austrian postal service launched the first edition back in June 2019. To give you some context: that was still back in the depths of the last bear market, the term DeFi was not even 6 months old and almost nobody could have expected the NFT hype of 2021. But the postal service was very forward-looking and just released some NFTs. I don't know much about stamps, but I assume that nowadays they are mostly a collectible and NFTs are digital collectibles (for now that's their main function). So stamps as NFTs makes a lot of sense. The first version of Crypto Stamps was minted on Etherum, the one I got is on Polygon, but I saw that they are also available on Gnosis Chain.
The rarity trait of Crypto Stamps is colours, in descending order of rarity those are: black, green, blue, yellow, red and gold. Rarity adds extra excitement to collecting them, because you never know which rarity your crypto stamp has, before you open it. Just like with Pokémon cards.
And now to answer the question, everybody at the last #hivemeetupvienna had: which rarities did I get:
The Austrian one is blue:
And the Dutch one is black:
As I mentioned, they also have some AR capabilities, and for that they really leaned into the bull theme. So you can get a bull into your room:
Finally, again, a big thank you to
