The trend in finance and securities law to digitize financial products as crypto assets and map them on a blockchain as decentralized stored assets. The trend is away from the classic paper form of a carrier medium to digital data. Examples include the use of book money instead of cash, the introduction of cryptocurrencies, or the introduction of electronic securities instead of securities certificates. In all of them, the paper form as a carrier medium for financial instruments is being replaced (tokenized) by digital forms.