Patent ID: 11961057
Assignee: CPLABS, INC.
Field: IT methods for management (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 4:
5. The system of claim 4, wherein the user device before performing the process (III), is further configured to:
(III-01) acquire the identification information on the IoT device from the IoT device by referring to a registering signal for the advance payment from the user device, and of displaying a confirmation requesting signal for registration of the advance payment through the display of the user device; and
(III-02) transmit, when a registration confirming signal of the advance payment is acquired from the user device, a registration requesting transaction including the identification information on the digital wallet, the identification information on the IoT device, information on a registration request for the advance payment and a signature value for request acquired by signing the information on the registration request with the certificate of the digital wallet to the payment supporting server;
the payment supporting server is further configured to:
verify the registration requesting transaction; register the advance payment for the IoT device by approving payment for the information on the registration request by using the digital wallet corresponding to the identification information on the digital wallet included in the registration requesting transaction when the registration requesting transaction is determined as valid;
register a result of an advance payment registration in the first blockchain database, and manage a corresponding first payment-info blockchain transaction ID of the result registered in the first blockchain database; and register in the second blockchain database, when one of the anchoring conditions is satisfied, a third representative hash value calculated by using a third specific hash value acquired by applying the hash function to the result of the advance payment registration and a corresponding at least one neighboring hash value, and
manage a corresponding second payment-info blockchain transaction ID of the third representative hash value registered in the second blockchain database; and
transmit the result of the advance payment registration to at least one of the IoT device and the digital wallet.