Patent ID: 11941627
Assignee: AMERICAN EXPRESS TRAVEL RELATED SERVICES COMPANY, INC.
Field: IT methods for management (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A non-transitory, computer-readable medium comprising machine-readable instructions that, when executed by a processor of a computing device, cause the computing device to at least:
request a merchant public key and a merchant private key from a merchant blockchain wallet;
generate a smart contract based at least in part on an input regarding a proposed good or service;
select the smart contract;
deploy the smart contract to a blockchain;
register the deployed smart contract with an issuer system, wherein registering further comprises:
transmit a merchant ID, the merchant public key, and the deployed smart contract to the issuer system to register a merchant-to-smart contract relationship, which links the deployed smart contract with the merchant ID; and
receive a registration confirmation;

receive from a user device a request for a transaction to purchase the good or service based on the deployed smart contract, the transaction request comprising a transaction account number;
transmit to the issuer system, a transaction authorization request comprising the merchant ID and the transaction account number; and
receive from the deployed smart contract via the issuer system, a payment receipt, the payment receipt comprising a status of the transaction.