Alerta

Blockchain-based digital content provision method

Resumen de: KR20240135591A

The present invention provides a method for distributing rights certificates which can utilize digital content in an amount corresponding to the issuance quantity, a server which performs the method, and a computer program stored in a medium to execute the method. The method for distributing rights certificates of digital content includes the steps of: allowing a first user terminal to receive an input for selecting one or more content managed by a content management unit; determining whether each of the one or more content is illegally distributed and determining the distribution possibility of each of the one or more content, and if the distribution possibility of each of the one or more content is true, generating first content using the one or more content; converting and generating a first rights certificate for the first content; and allowing the first user terminal to access a content management server to perform a payment for owning the first rights certificate. According to embodiments of the present invention, it is possible to prevent the distribution of invalid digital content and rights certificates.

MULTIPLE ENCRYPTION DATA STORAGE AND RETRIEVAL SYSTEM

Resumen de: MX2025011753A

A computer system and method for storage and retrieval of multiple encrypted data. The system and method allow a user to first encryption data with a first key only held by the user such that the user solely possesses one of the necessary keys for later decryption of the stored and encrypted data. The firstly encrypted data is then doubly encrypted and stores the data in such a secure manner that the data can be stored on a public blockchain architecture, if desired. Full decryption of the original user data can only be performed with access to the user's initial key.

SECURING BLOCKCHAIN TRANSACTION BASED ON UNDETERMINED DATA

Resumen de: EP4675972A2

Computer-implemented methods for locking a blockchain transaction based on undetermined data are described. The invention is implemented using a blockchain network. This may, for example, be the Bitcoin blockchain. A locking node may include a locking script in a blockchain transaction to lock a digital asset. The locking script includes a public key for a determined data source and instructions to cause a validating node executing the locking script to verify the source of data provided in an unlocking script by: a) generating a modified public key based on the public key for the determined data source and based on data defined in the unlocking script; and b) evaluating a cryptographic signature in the unlocking script based on the modified public key. The blockchain transaction containing the locking script is sent by the locking node to the blockchain network. The lock may be removed using a cryptographic signature generated from a private key modified based on the data.

HIERARCHY-BASED BLOCKCHAIN

Resumen de: EP4675968A2

A computer-implemented method comprising receiving a transaction request from a first node within the plurality of nodes, the transaction request corresponding to a pending transaction between the first node and a second node; identifying a blockchain associated with the pending transaction, the blockchain including a first block instance having a hierarchy file indicating a hierarchy among the first node, the second node, and the third node; identifying a second block instance having an executable file to approve the transaction request received from the first node; executing the executable file, wherein the executable file is configured to retrieve data from a data source associated with the third node and analyze data to approve or deny the transaction request; and appending a third block instance comprising the set of transaction attributes to the blockchain.

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM

Resumen de: EP4675536A1

Problem To verify which one of the distribution pieces of a secret key has been used to generate an electronic signature generated by the secret key.Solution An information processing device including: a distribution destination control unit that controls a plurality of distribution destinations for respectively storing a plurality of distribution pieces obtained by secretly distributing a secret key, on the basis of a selection by a user; a signature generation unit that generates an electronic signature by the secret key, by using part of the plurality of distribution pieces stored in the plurality of distribution destinations; a transaction issuance unit that issues a transaction, which is attached with the electronic signature, to a blockchain; and an audit unit that verifies which one of the plurality of distribution pieces has been used to generate the electronic signature attached to the transaction on the blockchain.

AUTHENTICATION OF USERS UTILIZING BIOMETRIC DATA IN A NON-CENTRALIZED COMPUTER SYSTEM

Resumen de: EP4675468A1

A system for authenticating a sender of a response to an authentication request includes an authentication server, an identity server configured to receive biometric data of a user, a central ID system configured to create or receive a username and/or password, and a first user device associated with a first user. The first user device is configured to create a first user ID that includes at least a first username and a first biometric data. When an authentication request is sent to a user device by the authentication server the user device responds with a user ID. The authentication server then queries at least one or both of the central ID system and the identity server to certify the accuracy of the user ID to assure it matches the first user ID before (1) accepting the response, or (2) permitting the first user to access confidential information. The systems and methods may also include blockchain authentication or tuple space authentication.

Method and system for data use/access control

Resumen de: GB2642380A

Claimed is a method of access control where the location 1003 of a device, possibly a cryptowallet, wishing to access data or a digital asset is determined and compared to a list of authorised locations 1005 such as buildings, work stations, or server racks, and access is granted if the device is in an authorized location 1007. The digital asset may be generated by or recorded in a blockchain, and may be cryptocurrency, medical or personal information, or a non-fungible token. The location from which access is requested may be stored in a blockchain ledger. Also disclosed is a location system, which may operate in real time, comprising a plurality of nodes that may use ultra-wide-band signals to determine the position of assets or devices. The nodes and their controller may authenticate one another, and a fingerprint of the location system may be stored in the blockchain to authenticate location determinations.

Layer 3 A Layer 3 Blockchain System for Real-World Asset Tokenization Based on an Identity Authentication Protocol and Method for Operating the Same

Nº publicación: KR20260002374A 06/01/2026

Solicitante:

정민호

Resumen de: KR20260002374A

본 발명은 실제세계자산(RWA, Real World Asset)의 토큰화 및 금융 규제 준수(KYC/AML) 문제를 해결하기 위한 Layer 3 블록체인 시스템인 TwinChain을 제공한다. 본 시스템은 모든 거래에 TwinCode 256 신원 인증 프로토콜을 내재화하여 규제 준수를 강제하며, 해당 신원 코드를 토큰화된 자산의 스마트 컨트랙트에 영구적으로 바인딩한다. 또한, HDPoA(Hybrid Delegated Proof of Authority) 합의 메커니즘을 채택하여 Core Validators(Tier 1)는 초고속 블록 생성 및 순서 정렬을 담당하고, 불특정 다수의 Virtual Nodes(Tier 2)는 데이터 가용성 및 탈중앙성을 확보한다. 이를 통해 초고속 블록 확정 시간 및 규제 준수 요건을 모두 만족시켜 대규모 금융 거래 환경에 최적화된 블록체인 시스템을 제공한다.