The present invention provides a method for tracking and managing power supplying devices and a blockchain-based system to perform such tracking and monitoring. The method comprises the steps of retrieving recorded characteristic data that is associated with an existing product identification from a blockchain, verifying such recorded characteristic data, generating a new product identification that is connected to the existing product identification and recording the new product identification and new characteristic data in the blockchain. The system comprises a blockchain and a middleware computer to perform the above-mentioned steps. Also provided herein is a blockchain-based system for monitoring and renting a power supplying device.

An artwork management method executed by one or more computers is provided. The artwork management method includes detecting, by a first computer included in the one or more computers, artwork included in a website, determining, by the first computer, whether or not a purchase transaction indicating purchase of the artwork detected is recorded in a blockchain network, and transmitting, by the first computer, a report indicating discovery of unauthorized use of the artwork, in a case where the first computer determines that the purchase transaction is not recorded. According to one aspect, the artwork management method suppresses illegal use of artwork while maintaining accessibility of the artwork.

The present disclosure describes a system, method and computer readable medium for verifying the ownership of an article. In one embodiment, one or more physically unclonable functions may be applied to an article and associated with a non-fungible token in order to create a digital fingerprint. The digital fingerprint may then be stored on a blockchain network and utilized to verify and authenticate the ownership of the article.

A method for transaction of digital asset is provided, including receiving digital asset transaction request information from a user terminal, verifying, by a blockchain network, the transaction request information, and when the verifying the transaction request information is completed, generating, by the blockchain network, information associated with the digital asset, in which the information associated with the digital asset includes a reputation of the digital asset.

The present disclosure relates to systems and methods for creating and using personas. The method includes receiving a first set of input signals associated with data from one or more source; receiving a second set of input signals associated with data from one or more source; converting the first set of input signals and the second set of input signals to a wavelet; constructing a persona based on the wavelet; storing the persona in a ledger; receiving a request for a decision related to a transaction; converting the request to a new wavelet; determining a difference between the new wavelet and the stored persona; generating a score based on the difference; and authorizing the transaction based on the score.

A method for filtering blockchain value transfer transactions and updating filtering including receiving a transaction request comprising an indication that the transaction request is associated with an update to an existing transaction smart contract, defining an updated transaction smart contract, applying a filter smart contract to the transaction request, and recording to a log an indication that the updated transaction smart contract was made to the existing smart transaction contract, responsive to the applying the filter smart contract.

Systems and methods for transferring value. A method includes posting, by a user device to a blockchain, a deposit transaction comprising a deposit value and conditions and updating, by the user device, a state according to a transaction amount. The method also includes transmitting, by the user device, a state update of the state to a server computer and responsive to transmitting the state update, and receiving, by the user device, a payment complete message comprising a tuple from the server computer. The method also includes verifying, by the user device, the conditions and processing, by the user device, a server deposit transaction on the blockchain in response to verifying.

A method for maintaining state and event information for all of a user's devices associated in a common location using a blockchain where each block includes an event block and a device block within it, where each event and device block refers to an earlier block of the respective type, resulting in a blockchain-in-a-blockchain architecture. The device and event blocks store data regarding each device associated with a user and events related to the devices/user, respectively. Any time a new event occurs, or a device is registered or removed, a new set of blocks is created, where submissions regarding device changes or events can be made by any participant due to the decentralized and public nature of a blockchain. The result is a system where all data regarding a user's registered devices and events is kept in a common location in a manner that is auditable and verifiable.

Some implementations of the disclosure are directed to receiving, at an authentication server system, a distributed ledger address transmitted by a client device to identify itself during an authentication process for accessing a network, where the distributed ledger address corresponds to a distributed ledger network; transmitting an authentication challenge message from the authentication server to the client device; in response to transmitting the authentication challenge message from the authentication server to the client device, receiving at the authentication server, a response to the challenge message including a signature; and using at least the distributed ledger network to determine if the signature used to sign the response to the challenge message is associated with the distributed ledger address transmitted by the client device.

The present disclosure relates to a payment system and method using a real-name account of a seller, the system and method being expanded from universal payment gateway (PG) platforms to the over the top (OTT) platform market and, more specifically, a payment system and method in which a payment exclusive account (hereinafter, payment account) opened in the real-name of a seller is used by default so that, in non-face-to-face electronic commerce, transactions may be conducted in real-time through live broadcasts between a plurality of unspecified sellers and a plurality of unspecified buyers at home and abroad, thereby enabling convenient, speedy, and safe processing with reduced processing costs.