Abstract: Aspects of this technical solution can include modifying a customizable region of a media object into a customized media object having a modified customizable region, generating, based on a card template having a portion compatible with the media object, a card object corresponding to the card template and including the customized media object embedded in the card object at a location corresponding to the portion of the card template, generating, based on the card object, an NFT including a first identifier of the customized media object and a second identifier of the card template, registering, based on the NFT, the card object to a user account via a block at a blockchain, and linking the NFT with a wallet object corresponding to the user account.