Alerta

Systems and Methods for Modifying and Tracking Digital Media Using Substantially Imperceptible Identifiers and Blockchain-Based Verification

Resumen de: US20260244717A1

A method for modifying and tracking digital media using substantially imperceptible identifiers is disclosed. A content asset is received over a communications network and modified using at least one processor by applying a substantially imperceptible variation to generate a modified content asset. A unique digital signature is generated based on features of the modified content, including spatial, temporal, spectral, or typographic characteristics, and the digital signature is stored in a blockchain ledger for immutable verification. The system may scan digital platforms for potential unauthorized copies, extract embedded variations, regenerate the digital signature, and verify it against the blockchain record. Variations may include pixel-level adjustments, audio signal alterations in inaudible frequency ranges, zero-width character insertions in text, or frame timing shifts in video. The system enables persistent, content-level traceability and supports automated enforcement actions, transforming media assets into verifiable, self-identifying entities suitable for rights management and anti-piracy enforcement.

BLOCKCHAIN-BASED CAREER AUTHENTICATION SYSTEM AND METHOD, AND COMPUTING DEVICE FOR PERFORMING SAME

Resumen de: WO2026173336A1

A blockchain-based career authentication system and method, and a computing device for performing same are disclosed. The disclosed system according to one embodiment is a blockchain-based career authentication system comprising: a user terminal for transmitting a request for issuance of a career certificate of a user; a related institution server for receiving the request for issuance of the career certificate, verifying career information of the user, and transmitting a verification completion notification when the verification is completed; and a career authentication management server for receiving the verification completion notification and registering career proof information of the user in a blockchain network according to the verification completion notification.

Authentication of Videos Using Blockchain

Resumen de: US20260246646A1

0000 A blockchain-based video authentication system ensures the integrity, authenticity, and security of digital video content by integrating cryptographic hashing, dynamic watermarking, AI-driven anomaly detection, and decentralized ledger storage. A video file is processed to generate a cryptographic hash, which is immutably stored in a blockchain ledger. A rotating digital watermark is embedded in the video to detect tampering. AI models, including convolutional and recurrent neural networks, analyze frames and motion patterns for manipulation. A fraud detection module leverages generative adversarial networks to identify deepfake alterations. A predictive threat analysis engine employs machine learning to detect emerging manipulation techniques. Verification is enabled via an API, a zero-knowledge proof engine, a browser plugin, and a mobile application. An active watermarking module monitors playback, detecting unauthorized use. A consensus-based validation mechanism ensures tamper resistance. The system provides a scalable, real-time, and privacy-preserving solution for securing and verifying digital video content.

BLOCKCHAIN TRANSACTION DATA MANAGEMENT SYSTEM AND METHOD FOR MANAGING BLOCKCHAIN BASED TRANSACTION DATA USING HYBRID CRYPTOGRAPHIC TECHNIQUES

Resumen de: US20260246612A1

0000 A blockchain transaction data management method and system for managing blockchain based transaction data is disclosed. The blockchain transaction data management method includes: obtaining the blockchain based transaction data in form of plain text data from communication devices; classifying blockchain based transaction data as sensitive computational transaction data and reference transaction data; encrypting the sensitive computational transaction data when the blockchain based transaction data are classified as the sensitive computational transaction data, using a FHE technique; hashing the reference transaction data for validating blockchain transactions when the blockchain based transaction data are classified as reference transaction data, using cryptographic hashing techniques; performing computation-based operations on the encrypted sensitive computational transaction data to generate preserved encrypted and hashed text data without accessing the plain text data; and providing the generated preserved plain text data associated with the blockchain based transaction data, as output, to the communication devices of users.

CROSS-INDUSTRY ADAPTIVE ACCESS CONTROL AND ASSET MANAGEMENT SYSTEM WITH PROOF-OF-EFFORT BLOCKCHAIN ARCHITECTURE

Resumen de: US20260244773A1

A system for adaptive access control and asset management comprises a metric collection layer configured to capture real-time user metrics from integrated systems. A blockchain layer provides an immutable, quantum-resistant ledger for storing access events, asset records, and compliance data. An authorization layer manages adaptive access control based on effort scores, access thresholds, and effort decay mechanisms. A data integration layer interfaces with external applications for data access, analytics, and reporting. The metric collection layer captures task completion, accuracy, and engagement metrics. The blockchain layer employs a hybrid model combining on-block and off-block storage. The authorization layer includes a BlockCipher Module for making access decisions based on calculated effort scores and predefined thresholds. The data integration layer facilitates integration of AI algorithms for behavior analysis and predictive insights. The system enables secure, adaptive access control and asset tracking across industries like finance, healthcare, supply chain, and government sectors.

APPARATUS AND METHOD FOR PRODUCTING BLOCK IN BLOCKCHAIN BASED ON ADAPTIVELY DETERMINED VOTING RIGHTS

Resumen de: KR20260125616A

적응적으로 결정된 투표권 기반 블록체인 블록 생산 장치 및 방법이 개시된다. 본 발명의 일실시예에 따른 적응적으로 결정된 투표권 기반 블록체인 블록 생산 장치는 블록체인 네트워크에 연결된 복수의 검증인 노드 각각이 스테이킹 금액에 따라 투표 토큰 수를 가지는 블록체인 시스템에 있어서, 상기 검증인 노드의 투표 토큰 수에 기반하여 블록 생산 위원회의 위원회 노드를 선출하고, 위원회 노드 별 당첨 투표권 수와 집중화 지수에 기반하여 실효 투표권 수를 계산하고, 상기 계산된 실효 투표권 수를 이용한 PBFT 합의 프로토콜을 실행하여 블록을 생산할 수 있다.

SYSTEM FOR PROVIDING BLOCKCHAIN BASED SMART LEDGER SERVICE

Resumen de: KR20260125991A

블록체인 기반 스마트 가계부 서비스 제공 시스템이 제공되며, 가계부를 기록하고, 가계부의 기록활동에 기반한 보상을 기 설정된 가상화폐로 지급받는 사용자 단말 및 사용자 단말에서 가계부를 기록하는 경우, 사용자 단말과 기록 데이터를 수신하는 수신부, 기록 데이터를 기 설정된 암호화 알고리즘으로 암호화 한 후 블록체인에 등록하는 등록부, 기록활동에 기반하여 기 구축된 보상모델을 이용해 보상금액을 산정한 후, 사용자 단말로 보상금액에 대응하는 가상화폐를 지급하는 지급부를 포함하는 가계부 서비스 제공 서버를 포함한다.

APPARATUS AND METHOD FOR USER SHARING DATA BASED ON BLOCKCHAIN

Resumen de: US20260238481A1

Disclosed herein is an apparatus and method for sharing data based on blockchain. The apparatus receives an aggregate key and an attribute token in response to a data request made by a data user to a data owner, requests a data storage location from a blockchain using a trapdoor generated based on the aggregate key and the attribute token, requests data from a cloud server based on the data storage location, and decrypts the data received from the cloud server.

A Management system on driver changing for car rent on business using block-chain

Resumen de: KR20260125168A

본 발명은 블록체인을 이용한 자동차 임대사업자를 위한 운행자 변경관리 시스템에 관한 것으로, 그 구성은 오프라인, 온라인 또는 모바일 앱(APP)을 이용하여 관리서버를 통해 렌트카, 리스를 통해 차량의 임대 계약에 필요한 개인정보를 포함한 제반적인 정보를 제공하고 차량 운행에 따라 QR 코드 스캔정보, 얼굴 또는 지문의 생체인증 절차 등록하고, 단속단말에 의해 속도위반, 불법 주정차 위반의 위법 사항에 대해 관리서버에서 단속장치의 단속 정보에 대하여 임대계약에 따른 등록정보와 매칭된 운행자 정보를 전송하여 단속장치에서 전송된 해당 과태료 또는 행정명령의 단속 정보에 대한 처분을 수신하는 사용자 단말; 차량 운행에 따라 고정식 또는 이동식 장치를 통해 차량 운행에 의해 발생하는 속도위반, 불법 주정차 위반의 위법 사항에 따른 해당 과태료 또는 행정명령의 단속정보를 단속장치로 전송하는 단속단말; 오프라인, 온라인 또는 모바일 앱(APP)을 통해 사용자 단말의 차량의 임대를 위해 렌트카, 리스 계약의 차량 임대를 위해 개인정보 활용 요청, 운행시 QR 코드, 얼굴인식, 지문인식의 인증실행, 차량단말 내 구비된 식별장치를 통해 운행자의 얼굴인식, 지문인식 실행 동의를 위해 진정한 운행자 확인 및 �

St0mp: An integrated digital and physical postage system with blockchain-enhanced security and AI-driven customisation

Resumen de: GB2704053A

Digital postage systems, a method for creating, managing and authenticating digital stamps, and a method for promoting and managing a digital stamp as a collectable item are disclosed. A user input in received from a digital interface and used by an artificial intelligence (AI) module to generate a digital stamp which includes a unique identifier. A blockchain-based registry is used to immutably record details of the digital stamp, linking this to the unique identifier. A cloud-based database stores the digital stamp an maintains a verifiable link between the digital stamp and a corresponding physical stamp. A printing interface outputs the digital stamp in physical form and ensures reproduction fidelity and security feature integrity. Figure 1

BLOCKCHAIN-BASED DATA MANAGEMENT SYSTEMS FOR ARTIFICIAL INTELLIGENCE TRAINING

Resumen de: WO2026173136A1

This training data verification system, which performs a verification operation on artificial intelligence training data in a blockchain-based artificial intelligence training data management system: has an identity of the training data verification system authenticated by a blockchain system in response to a verification request for training data from a training data supply system; when the identity authentication of the training data verification system is successful, receives, from an off-chain of the blockchain system, training data retrieved using an identifier of the training data supply system and an identifier of the training data; and verifies whether the received training data includes at least one of personal information, biased information, false information, fabricated information, and copyright-infringing information, thereby generating a verification result of the training data, wherein the verification result of the training data includes an identifier of the training data supply system, an identifier of the training data verification system, an identifier of the training data, a hash value of the training data, and a hash value of a verification history of the training data.

ACCESS CONTROL DEVICE, ACCESS CONTROL SYSTEM, AND ACCESS CONTROL PROGRAM

Resumen de: EP4793806A1

There are provided an access control device, an access control system, and an access control program that improve convenience of an NFT. A data management unit of an access control server (10) stores data associated with an NFT on a blockchain, and stores disclosure destination information indicating a disclosure destination of the data in association with identification information of the NFT. A disclosure destination authentication unit of the access control server (10) determines whether or not to disclose the data to a disclosure requester based on the disclosure destination information stored in the data management unit in a case where a disclosure request of the data is received from the disclosure requester, the disclosure request being based on an access destination of the data indicated by the NFT.

METHOD, APPARATUS AND COMPUTER PROGRAM FOR TRADING TOKENIZED ASSETS

Resumen de: EP4793867A1

Disclosed are methods for trading tokenized assets as well as a corresponding data structure, a data processing apparatus and a computer program. One of the methods comprises providing a set of smart contracts stored on a blockchain, wherein the set of smart contracts forms a decentralized order book configured to record token trading orders, receiving a request from a user device to add a token trading order to the decentralized order book, determining a reward for executing the token trading order, collecting a payment of the reward from the user device, making the token trading order available for execution, determining that the token trading order was executed by an executor device and making the reward available to the executor device

AI FPGA AI-based Threat Detection and Blockchain Smart Contract-enabled FPGA Post-Quantum Cryptography Security Communication System

Resumen de: KR20260126063A

본 발명은 무인이동체 간 보안성이 요구되는 환경에서 AI 기반 위협 탐지 및 블록체인 스마트 컨트랙트를 활용한 보안 통신 시스템을 제공한다. FPGA 기반 암호 연산 모듈과 TRNG(True Random Number Generator) 및 QRNG(Quantum Random Number Generator)를 이용하여 양자내성암호(PQC) 기반의 보안 키를 생성하고, 이를 블록체인을 통해 안전하게 관리한다. 또한, AI 기반 위협 탐지 기능을 활용하여 실시간 네트워크 이상 징후를 감지하고, 블록체인 기술을 적용하여 데이터 무결성과 인증을 보장한다. 본 발명은 다중 네트워크(5G, 위성통신, LoRa) 환경에서 안정적인 통신을 지원하며, AI 모델 업데이트 모듈을 통해 지속적으로 보안성을 강화할 수 있도록 한다. 이를 통해 기존 중앙집중형 보안 방식의 한계를 극복하고, 자율 네트워크 관리 및 보안성이 강화된 무인이동체 시스템을 구현할 수 있다.

AI CARBON EMISSIONS TRADING AND OFFSET MANAGEMENT PLATFORM USING AI BASED VISION TECHNOLOGY AND BLOCKCHAIN

Resumen de: KR20260123667A

본 발명의 실시예에 따르면, 소정의 동작을 수행하도록 하는 명령어들을 저장하는 하나 이상의 메모리; 및 상기 하나 이상의 메모리와 동작 가능 하도록 연결되어 상기 명령어들을 실행하도록 설정된 하나 이상의 프로세서를 포함하고, 상기 프로세서의 동작은, 소정의 플랫폼 서비스에 의해 발생한 탄소 저감 이벤트에 대한 정보를 획득하는 동작; 상기 탄소 저감 이벤트에 대한 정보를 기초로 상기 플랫폼 서비스의 운영 주체가 감축시킨 탄소 저감량 판별하는 동작; 및 상기 플랫폼 서비스의 운영 주체가 감축시킨 탄소 저감량을 기초로 탄소 배출권을 획득하는 동작을 포함하는 서버가 제공된다.

METHOD APPARATUS AND PROGRAM FOR PROVIDING BLOCK CHAIN BASED ACTION SERVICE

Nº publicación: KR20260124027A 14/08/2026

Solicitante:

박민지

Resumen de: KR20250014203A

According to various embodiments of the present invention, disclosed is a method for providing an auction service based on a blockchain network. The method comprises the steps of: obtaining supply information including an auction target site from a supplier terminal; generating an auction transaction based on the supply information; transmitting the auction transaction to a plurality of consumer terminals included in a blockchain network, and generating a block and causing the auction transaction to be recorded in the block when the auction transaction is verified by the plurality of consumer terminals through an agreement algorithm; obtaining a bidding transaction recorded in the blockchain network by each of the plurality of consumer terminals after the auction transaction is recorded in the blockchain network; determining a successful bidder terminal of the auction target site based on the bidding transaction; and providing a use right related to the successful bidder terminal when the successful bidder terminal is determined.