The technology that makes this possible is called NFT, a non-fungible token, and acts as a certificate of authenticity for a digital file that is stored on an encrypted and distributed database.  

- If there are 100 Zlatan cards, it can not be 101. This ensures the authenticity of the digital assets, which was not possible before.

Now we have a technology that ensures uniqueness, says Nicolas Julia, CEO of the company Sorare, a blockchain platform for football collectibles. 

Among the football teams that have jumped on are the French national team. And Nicolas Julia does not think it's just a temporary fly.