Moneytak in detail..

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linking any offline transaction to transactions that have been reported to the server. This is what is patented and hat makes the system secure, as the server is able to discard any duplicated transaction.

Using our random hash signature ; enabling a longevity to the system  whatever progress the quantum computers may do.

This is made possible by using our random hash signature which  can use smaller keys enabling each card to hold enough encryption keys to communibicate with every reader . The compromission of the keys of a single card or a single reader will only affect the security of the compromised devices, while the scurity of transactions between  other devices  is not be affected.