19 results about "Digital evidence" patented technology

A method for packaging digital evidence for long term validation comprises forming a package of a digital document (10), an electronic signature (12) for the document (10), together with evidence (16) of the authority of the signature in the document and a time stamp (20) indicating when the document was digitally signed. All of the pieces form parts of the packaged evidence.

A computer-implemented system for multidimensional generative value assessment and applicant selection, consisting of: a data collection unit configured to electronically receive applicant data consisting of structured academic records, work experience records, digital documentation, and unstructured narrative responses generated from generative self-assessment instruments and contextual interviews; a feature extraction unit coupled to the data acquisition unit, configured to apply computer-assisted text processing, semantic analysis, and token-level attribute identification to transform narrative responses and structured data into multidimensional feature vectors that represent generative indicators of innovation, mentoring, collaborative performance, resilience, social contribution, ethical consistency, and predicted institutional impact; a weighting calculation unit configured to assign weight values ​​to the extracted feature vectors based on a digital generative profile definition matrix that includes dimensions, sub-criteria, indicators, documentation requirements and importance coefficients, with the weighting being distributed across the generative dimensions defined in the digital matrix and configurable according to the institutional context; a quantitative rating unit configured to calculate a generative rating score by aggregating weighted feature vectors derived from self-assessment inputs, interview-based ratings, document analyses, and authenticity predictions, with the aggregation including normalization, nonlinearity correction, conflict handling, and artifact frequency balancing to obtain a consolidated score; a proof verification unit configured to electronically validate referenced digital evidence by performing content extraction, metadata verification, pattern matching, and cross-document correlation to determine authenticity, credibility, and contextual relevance with respect to the calculated feature vectors; a classification determination unit configured to assign a classification level to an applicant by comparing the generative assessment score with a set of system-defined calculation thresholds, including at least a lower threshold, a middle threshold and an upper threshold, the classification levels representing different generative maturity states and determining subsequent eligibility for selection; a decision generation unit configured to produce a digital output data set that includes classification level, feature aggregation summaries, evidence validation results, and recommended organizational actions, wherein the decision generation unit encodes the data set in a digitally signed, tamper-proof format and stores it on a non-volatile storage medium; and A system control unit acts as an operational interface to all other units and is configured to orchestrate data flow, scheduling, process state transitions, and event logging to ensure verifiable traceability, consistency, and auditability of the evaluation and selection processes.

The invention relates to the technical field of image recognition and digital forensics, in particular to a video evidence chain consistency verification method and system based on space-time metadata, and the method comprises the steps: obtaining a pixel stream and internal metadata through decoding a video file, generating a self-adaptive retrieval window through combining time, a position label and a scene element, and carrying out the verification of the consistency of the video evidence chain. And calling multi-source external data in the window to carry out space-time alignment and weighted fusion to form structured external metadata. Illumination, weather and holding state consistency data streams are further extracted and aggregated into multi-dimensional consistency vectors under the global time reference, and a video consistency sequence is generated through dynamic weighted fusion. And the system analyzes the consistency sequence segment by segment, marks risk segments, calculates global credibility, and finally outputs a visual verification report. According to the method, multi-dimensional cross validation of the video and the objective physical world is realized, and the authenticity, the acquisition reliability and the examination efficiency of the digital evidence are improved.

The invention provides a building industry finance and tax compliance digital evidence chain integrated platform which is deployed based on a cloud computing architecture and comprises a distributed server cluster, a network communication module and a database storage system. By constructing the integrated digital platform, fundamental efficiency improvement and risk management and control reinforcement of finance and taxation management in the building industry are realized, the platform enables a data acquisition process to be highly automatic, manual repeated entry work is greatly eliminated, financial personnel are liberated from tedious account checking, and the financial personnel are greatly improved. The compliance check module based on a rule engine and artificial intelligence can perform real-time and comprehensive automatic analysis on all transaction data, significantly improves the identification accuracy and timeliness of potential compliance risks, realizes instant alarm, converts passive risk response into active risk response, and improves the risk handling efficiency. Compared with a traditional manual mode, the data processing speed is improved in order of magnitude, the monthly checkout and report generation time is greatly shortened, the enterprise decision cycle is remarkably accelerated, and the overall operation efficiency is improved.

The invention provides an archive digital evidence storage and tamper-proofing method and system based on a block chain technology, and the method comprises the steps: obtaining current archive data, carrying out the character and image semantic extraction of the current archive data through a dual-channel semantic model, and obtaining a current semantic signature vector; and obtaining a previous semantic signature vector of the previous version of file and an average semantic signature vector of the historical file, and calculating a semantic offset degree according to the current semantic signature vector, the previous semantic signature vector and the average semantic signature vector. And if the semantic offset degree is greater than a difference threshold value, calculating a signature validity identifier according to the semantic offset degree, the role matching factor and a historical signature redundancy coefficient. The signature validity identifier comprises a signature validity identifier and a signature invalidity identifier. If the signature validity identifier is the signature validity identifier, abstract generation and uplink write-in operation are executed, otherwise, abstract generation and uplink write-in operation are not executed. And digital archive evidence storage and tampering prevention of the block chain technology are realized.

The embodiment of the invention discloses an evidence obtaining method and system for detecting back door attack for deep malicious codes, and the method comprises the steps: obtaining an attacked data set of back door attack data to be subjected to evidence obtaining and a known back door attack data set, carrying out the preprocessing, and generating a corresponding feature vector; for the feature vector of the back door attack data to be obtained, performing similarity calculation on the feature vector of the back door attack data to be obtained and the feature vector of attack data belonging to each malicious code category in a known back door attack data set; and according to the similarity value, the evaluation value and the probability value of each malicious code category to which the evidence obtaining backdoor attack data belongs are calculated to determine the backdoor attack data of final evidence obtaining in the evidence obtaining backdoor attack data set, so that the accuracy and the efficiency of digital evidence obtaining are greatly improved, and the safety of a deep malicious code detection system is powerfully ensured.

The present application relates to a compact Merkle tree zero-knowledge circuit judicial authentication method, comprising the following specific steps: registering identity attributes and constructing CPMT, authenticating anonymity / multi-factor and loading CPMT witness, generating CPMT-ZK proof and verifying on the block chain, cross-domain authorized access and reading end-cloud chain collaborative data, evidence solidification and generating a judicial verifiable chain link, the present application realizes the minimum disclosure of attribute and path information through zero-knowledge proof, avoids sensitive information leakage, reduces the risk of information abuse, reduces the proof generation and verification overhead through the optimized CPMT-ZK circuit and batch proof mechanism, meets the high-concurrency authentication and mobile terminal deployment requirements, through the quantifiable control of false positive rate, version management and digital evidence chain certificate support full-link traceability, recheckable, meet the requirements of judicial scene on compliance and accountability.

A data integrity management system enables robust point-in-time digital evidence generation. The system enables generation of records representative of point-in-time events involving known persons at known locations. Such systems may be employed in data integrity management processes performed in a computer network.

The application relates to the technical field of digital evidence storage, and relates to a digital script evidence storage method and system based on artificial intelligence and a block chain, which comprises the following steps: confirming a digital script evidence storage environment based on a digital script evidence storage instruction; using an artificial intelligence generation unit to perform text expansion and logic generation on script description information; performing semantic segmentation and structure analysis on the digital script to be stored based on a language model unit; performing cascade mapping on a multi-dimensional semantic feature vector and an original text hash value; structurally packaging a composite verification identifier, a current timestamp, a creation subject identifier and a version serial number; establishing a version chain based on a confirmation result, a version serial number and a block height; and performing script verification based on the version chain. The application can improve the reliability, accuracy and traceability of digital script evidence storage.

The invention belongs to the technical field of natural resource monitoring, and discloses a natural resource supervision system and method based on Beidou satellite navigation positioning, and the method comprises the steps: a data collection module collects address data; the path planning module plans a path; natural resources are supervised and inspected through Beidou probe equipment and a mobile phone; the precise positioning module is used for precise positioning; the positioning navigation module provides navigation service; the intelligent supervision module carries out intelligent supervision and trajectory tracking on the business process; the space analysis comprises land category analysis, land category proportion analysis, overlay analysis and the like; and the security and authentication module ensures data security and user permission compliance. According to the method, full-process digital evidence obtaining is achieved, centimeter-level positioning is obtained in real time through a Beidou probe, surrounding pattern spot information is automatically associated, coordinates and timestamps are automatically bound during photographing evidence obtaining, and it is ensured that the site evidence obtaining position is accurately matched with the pattern spot information; and the spatial analysis module identifies a high-risk area in advance through buffer area analysis and violation trend prediction.

This invention relates to the field of cultural relic management technology, and discloses a method and system for constructing a digital evidence chain for cultural relics based on microscopic physical feature extraction. The method includes collecting macroscopic images and surface microscopic physical fingerprint features of cultural relics based on predetermined anchor points to generate a high-fidelity digital twin archive containing multimodal features; generating a deep feature vector to uniquely identify the cultural relic; in the cultural relic circulation process, re-sampling the predetermined anchor points on the cultural relic in situ and performing millisecond-level comparison to output consistency verification results; performing hashing processing to generate a digital digest; binding the digital digest with a timestamp and uploading it to a blockchain network for evidence storage. This invention fundamentally eliminates the risk of physical substitution through the strong binding of physical features and digital identity; it forms an evidence chain with legal force through millisecond-level dynamic comparison and blockchain storage; and it achieves transparent and real-time monitoring of the status of cultural relics through cross-institutional digital verification.

Disclosed are a method, system, and apparatus of a body-worn camera system with integrated artificial intelligence for real-time field assistance and automated incident reporting. In one embodiment, a cloud-based data management system includes an artificial intelligence module to generate a transcript of an incident using data captured from a body-worn safety device (e.g., audio or video data) that captures an incident surrounding a first responder. The transcription is highly accurate, even in noisy environments, and discerns different speakers, making it valuable for documenting interactions and statements. The transcribed text is analyzed with a private Large Language Model (LLM), to interpret at least one of the audio and video data, and to provide insights, summaries, and / or flag potential areas of concern based on the context and content of a conversation during the incident. An incident report based on the recorded and analyzed data.

The invention relates to the technical field of electronic payment, and discloses an electronic evidence storage method and system for transaction security, and the method comprises the steps: injecting a payment request as an evidence storage identifier into transaction data of a payment gateway, and generating evidence storage transaction data; and extracting transaction key elements and binding the transaction key elements with the user payment identity credential to form a structured evidence storage instruction. And performing hash operation on the evidence storage effective load of the instruction to obtain a digital digest. And constructing a credible evidence storage data packet in combination with the timestamp and the digital digest. And generating an evidence storage completion receipt by taking the evidence storage identifier as the main body associated index information. Performing digital signature on the receipt to finally obtain a digital evidence storage voucher; according to the invention, the evidence effectiveness of the electronic certificate for transaction security can be enhanced.

This provides a computer implementation method for recording evidence data. [Solution] The method comprises the steps of: allocating storage space for digital evidence data in physical memory located on a recording device and isolated from the outside of the device; acquiring evidence data following the detection of a predetermined event; recording the evidence data in the storage space; associating the evidence data with digital proof data that includes at least the date and time of acquisition corresponding to the date and time of acquisition of the evidence data, i.e., the date and time when the predetermined event occurred; transmitting only the proof data via encrypted communication means to a storage environment located outside the device and accessible by at least one external user; and storing the proof data in the storage environment in such a manner that at least an external user can view the proof data after its acquisition.

The invention is suitable for the technical field of power grids, and provides a cable accessory installation process imagination tracing method, device and equipment, image recording is carried out on a plurality of processes of cable accessory installation through image acquisition equipment to obtain image data, the image data is associated with corresponding installation process information to generate an associated data packet, and the associated data packet is stored in a database; the method comprises the following steps: receiving an associated data packet, then performing risk assessment according to the associated data packet to obtain a first risk score, if the first risk score is lower than a preset threshold, storing the associated data packet in a database, and when a tracing instruction is received, retrieving from the database according to the tracing instruction and outputting corresponding image data. According to the embodiment of the invention, the whole installation process is recorded in an imaging manner, the image data is closely associated with the process information, a visual digital evidence chain is constructed, and risk assessment and closed-loop management can be carried out according to the associated data, so that the accurate management and control of the installation quality of the cable accessory are realized, and the installation efficiency is improved. And the efficiency and reliability of project quality management are improved.

The application provides a file digitization storage and tamper-proofing method and system based on blockchain technology, which comprises the following steps: obtaining current file data, extracting the text and image semantics of the current file data through a double-channel semantic model to obtain a current semantic signature vector; obtaining a previous semantic signature vector of a previous version of the file and an average semantic signature vector of historical files; calculating a semantic offset degree based on the current semantic signature vector, the previous semantic signature vector and the average semantic signature vector; if the semantic offset degree is greater than a difference threshold, calculating a signature validity identifier based on the semantic offset degree, a role matching factor and a historical signing redundancy coefficient; the signature validity identifier comprises a valid signature identifier and an invalid signature identifier; if the signature validity identifier is the valid signature identifier, performing an abstract generation and on-chain writing operation, otherwise, not performing the abstract generation and on-chain writing operation. The file digitization storage and tamper-proofing based on the blockchain technology is realized.

This invention relates to the field of electronic payment technology, and discloses a method and system for electronic evidence preservation for transaction security. The method includes: injecting a payment request as an evidence preservation identifier into the transaction data of a payment gateway to generate evidence-preserving transaction data; extracting key elements of the transaction and binding them with the user's payment identity credentials to form a structured evidence preservation instruction; performing a hash operation on the evidence-preserving payload of the instruction to obtain a digital digest; constructing a trusted evidence preservation data packet by combining a timestamp and the digital digest; generating an evidence preservation completion receipt by associating index information with the evidence preservation identifier as the main body; and digitally signing the receipt to finally obtain a digital evidence preservation certificate. This invention can enhance the evidentiary effect of electronic evidence preservation for transaction security.

Provided are a system and method for managing blockchain-based international investigative cooperation support work for responding to copyright crimes. The system for managing investigative cooperation support work according to an embodiment of the present invention comprises: an investigative cooperation information sharing system for recording and providing investigative cooperation information about copyright crimes on the basis of a blockchain; and an evidence sharing system for storing and providing an evidence acquired by the investigative cooperation for the copyright crimes. Accordingly, by enabling sharing of investigative information and digital evidence for each case by using the blockchain, it is possible to support rapid international investigative cooperation for copyright crimes.