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American Express Finance Corporation has applied for a patent describing a solution for recognizing cash receipts and payment receipts from photos. Then, during the verification process, this data is compared with information about financial transactions, which is stored in the blockchain.

The American financial Corporation American Express (Amex) has applied for a patent for a blockchain system to capture and transmit images of cash receipts. The relevant information was published on November 13

The author of the application is the division of the Corporation for the tourism sector, Amex. The proposed solution allows the user to fix the image of the cash receipt or receipt using a mobile device. Then, using "optical character recognition", the system decrypts the image and compares the data with the transaction history records.

The system uses "data blocks", and, as specified in the application,"these databases can have a relational, hierarchical, graphical, distributed and any other object-oriented structure."