Abstract: A digital content delivery tracking method performed by a central server includes generating a transfer chain for first digital content in a database of the central server, wherein the generating is performed by a transfer chain manager; authenticating a first user, wherein the authenticating is performed by a user authenticator; and generating a first ownership transfer node in the transfer chain, generating a first ownership indicator indicating the first digital content, recording the first ownership indicator in the first ownership transfer node, and recording an identifier of the first user in the first ownership transfer node, which are performed by the transfer chain manager.

Abstract: Provided is a method by which a cross chatbot gateway allows an event to be shared between chatbots, and the method includes the steps of: receiving an event message from a first chatbot communicating with a first chatting server using a first chatting protocol, wherein the event message includes destination information and event information of a first user, who is a chatting counterpart of the first chatbot; and transmitting the event information to a second chatbot communicating with a second chatting server using a second chatting protocol, on the basis of the destination information.

Abstract: A method for providing a digital product according to the present invention comprises the steps of: receiving a request to provide a digital product of a digital product providing server from a terminal of a user; obtaining a login server user identifier of the user for a unique application identifier by logging in to a login server using the unique application identifier; storing digital product providing information in a database in association with the login server user identifier on the basis of the request to provide the digital product of the digital product providing server; and transmitting the digital product providing information to the digital product providing server in association with the login server user identifier, thereby being able to conveniently provide the digital product by synchronizing a user account.

Abstract: Provided is a method by which a cross chatbot gateway allows an event to be shared between chatbotsu, and the method includes the steps of: receiving an event message from a first chatbot communicating with a first chatting server using a first chatting protocol, wherein the event message includes destination information and event information of a first user, who is a chatting counterpart of the first chatbot; and transmitting the event information to a second chatbot communicating with a second chatting server using a second chatting protocol, on the basis of the destination information.

Abstract: A communication method is securely performed by a communication device having a predefined URL. The communication method includes transmitting a first request, receiving a second request transmitted to the predefined URL, determining whether the second request corresponds to the first request, transmitting a response for the second request according to a result of the determination, and receiving a response for the first request. This method makes it possible to easily build and manage a system.

Abstract: The present disclosure pertains to a method for providing digital goods using a URL coupon. The method includes: generating a digital goods provision URL containing information on digital goods; generating a URL coupon containing the digital goods provision URL; providing the URL coupon; receiving a digital goods provision request at the digital goods provision URL; authenticating a user; and transmitting an information processing request containing authenticated user information and digital goods identification information to a digital goods managing server. The method makes it possible to provide digital goods in an easy and safe manner.

Abstract: A communication method is securely performed by a communication device having a predefined URL. The communication method includes transmitting a first request, prior to receiving a response for the first request, receiving a second request transmitted to the predefined URL, determining whether the second request is for verifying whether the first request is transmitted by the communication device, transmitting a response for the second request according to a result of the determination, and receiving the response for the first request.