Patent ID: 11861573
Assignee: COINPLUG, INC.
Field: IT methods for management (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 2:
3. A service providing device for a payment for an Internet of Things (IoT) device, comprising:
a transceiver configured to acquire information on a payer, including identification information on the IoT device, from the IoT device, on condition that a payment supporting server (i) has registered a certificate of the IoT device, a certificate of a service providing device and a certificate of a digital wallet of a user in a first blockchain database, (ii) has managed their corresponding first, second and third blockchain transaction IDs of the certificate of the IoT device, the certificate of the service providing device and the certificate of the digital wallet registered in the first blockchain database, (iii) has registered each of representative hash values calculated by using (iii-1) each of specific hash values acquired by applying a hash function to each of the certificates and (iii-2) each of at least one neighboring hash values which is each of at least one hash values of each of at least one other transactions registered in the first blockchain database in one of anchoring conditions, in a second blockchain database, (iv) has managed their corresponding fourth, fifth, and sixth blockchain transaction IDs of the representative hash values for each of the certificates registered in the second blockchain database, and (v) has managed link information on a link between information on the IoT device and information on the digital wallet as the payer therefor; and
a processor configured to transmit, in response to the acquired information on the payer, a billing transaction including the identification information on the service providing device, the identification information on the IoT device, a billing detail and a signature value for billing acquired by signing the billing detail with the certificate of the service providing device to the payment supporting server, to thereby instruct the payment supporting server to (i) acquire the identification information on the digital wallet, corresponding to the identification information on the IoT device included in the billing transaction by referring to the link information, from the first blockchain database when the billing transaction is determined as valid, (ii) transmit a payment for the billing detail by using the digital wallet corresponding to the identification information on the digital wallet acquired from the first blockchain database, and (iii) register a payment result including a payment detail corresponding to the billing detail in the first blockchain database and manage its corresponding blockchain transaction ID of the payment result, or (iv) register in the second blockchain database, when one of the anchoring conditions is satisfied, a first representative hash value calculated by using (iv-1) a first specific hash value acquired by applying the hash function to the payment result and (iv-2) its corresponding at least one neighboring hash value, and manage its corresponding second blockchain transaction ID of the payment result registered in the first blockchain database, and (v) transmit the payment result to at least one of the service providing device, the IoT device and the digital wallet,
wherein, the anchoring conditions include at least one of (i) a condition that one or more transactions related to the payment for the IoT device are created a certain number of times, (ii) a condition that a certain amount of time is elapsed, (iii) a condition that a block is created in the first blockchain database, and (iv) a condition that has at least one of characteristics of services.