A non-fungible token is a data unit stored on a blockchain (digital ledger), which can represent unique digital assets such as artworks. [1] It is a cryptographic token, but unlike cryptocurrencies such as Bitcoin, it is not interchangeable. [5][6] A non-fungible token[7] is created by uploading a file, such as an artwork, to the non-fungible token auction market[8], which will create a record on the digital ledger A copy of the document as a non-fungible token that can be purchased and resold with cryptocurrencies. While creators can sell non-fungible tokens representing the work, they can still retain the copyright of the work [9] and create more non-fungible tokens of the same work. Buyers of non-fungible tokens do not get exclusive access to the work,[9] nor do buyers get exclusive access to the original digital files. A person uploading a work as a non-fungible token does not have to prove that they are the original artist [10], and in many controversial cases, the artwork has been stolen for non-fungible tokens without the permission of the creator. currency