Abstract: System and methods for validating and confirming the integrity of documents and for validating identity related to the documents based on artificial intelligence and/or blockchain systems. In embodiments, a system implements validation controls to validate and/or confirm the integrity of documents to safeguard against document tampering, ensuring the integrity of the document remains intact throughout the signing process and afterwards. In addition, in embodiments, a system with enhanced functionality implements advanced verification and/or validation mechanisms to ensure the identity of the signatory parties of a document accurately reflects the authorized individual(s).

Abstract: System and methods for validating and confirming the integrity of documents and for validating identity related to the documents based on artificial intelligence and/or blockchain systems. In embodiments, a system implements validation controls to validate and/or confirm the integrity of documents to safeguard against document tampering, ensuring the integrity of the document remains intact throughout the signing process and afterwards. In addition, in embodiments, a system with enhanced functionality implements advanced verification and/or validation mechanisms to ensure the identity of the signatory parties of a document accurately reflects the authorized individual(s).

Abstract: System and methods for physical authentication using blockchain technologies. A user list is encoded via hashes of respective wallet addresses to construct a Merkle Tree. The Merkle Root of the constructed Merkle Tree is recorded on the blockchain. The Merkle Tree and the Merkle Root are updated each time a user is added to the organization. A user is authenticated by submitting a message to the client, which creates a Merkle Proof and sends it to the blockchain for authentication. The process can be facilitated by a mobile application that generates a Quick Response (QR) code representing the user's wallet address.

Abstract: System and methods for validating and confirming the integrity of documents and for validating identity related to the documents based on artificial intelligence and/or blockchain systems. In embodiments, a system implements validation controls to validate and/or confirm the integrity of documents to safeguard against document tampering, ensuring the integrity of the document remains intact throughout the signing process and afterwards. In addition, in embodiments, a system with enhanced functionality implements advanced verification and/or validation mechanisms to ensure the identity of the signatory parties of a document accurately reflects the authorized individual(s).

Abstract: System and methods for extracting sentiment from statements using graph-based classification models. In embodiments, an input statement is divided into a set of bigrams, each bigram composed of a respective pair of neighboring words in the input statement. A relationship between the neighboring words is identified for each bigram of the set of bigrams using a graph-based NLP classification model having a plurality of nodes, each node associated with a node of the graph-based NLP classification model. The relationship between two nodes includes information for determining a sentiment classification associated with the relationship between the two nodes. A sentiment classification for each bigram of the set of bigrams is determined based on the relationship between the respective neighboring words of each bigram, and an overall sentiment classification for the input statement is determined based on a summation of the sentiment classification for each bigram of the set of bigrams.

Abstract: A method for reworking an electrically conductive layer of a composite skin is disclosed in which a patch replaces the altered section of the electrically conductive layer. The method is performed by removing a portion of the electrically conductive layer to reveal the underlying composite skin. A patch is formed, having an electrically conductive section coupled to an adhesive having a low dielectric breakdown strength, and is then introduced over the underlying composite skin such that the adhesive layer covers the underlying composite skin and overlaps an unremoved portion of the electrically conductive layer. The patch is applied such that the electrically conductive section within the patch covers the adhesive layer and overlaps the unremoved section of the electrically conductive layer. The adhesive layer preferably has a low dielectric breakdown strength, so that electricity from lightning which strikes the composite skin may be conducted through the adhesive.

Abstract: A method for reworking an electrically conductive layer of a composite skin is disclosed in which a patch replaces the altered section of the electrically conductive layer. The method is performed by removing a portion of the electrically conductive layer to reveal the underlying composite skin. A patch is formed, having an electrically conductive section coupled to an adhesive having a low dielectric breakdown strength, and is then introduced over the underlying composite skin such that the adhesive layer covers the underlying composite skin and overlaps an unremoved portion of the electrically conductive layer. The patch is applied such that the electrically conductive section within the patch covers the adhesive layer and overlaps the unremoved section of the electrically conductive layer. The adhesive layer preferably has a low dielectric breakdown strength, so that electricity from lightning which strikes the composite skin may be conducted through the adhesive.

Abstract: A washer, a fastening assembly including the washer and a composite structure including the washer sealing the assembly for internal lightning strike protection. The washer includes one or more concentric ribs that are dielectric rings on both sides. When used (e.g., with a nut and bolt) internal to a structure, especially a composite structure, the washer seals the fastener hole (i.e., that the bolt passes through) and contains any sparking and hot gasses that may arise in the fastener hole from entering the structure.

Abstract: A method for reestablishing the electrical continuity of an electrically conductive layer of a composite aircraft wing damaged by a lightning strike or other mechanical event is disclosed in which a copper patch replaced the damaged section of the electrically conductive layer contained. The repair is performed by first removing any surfacers, fasteners, and damaged electrically conductive layer to expose a portion of the underlying composite skin. A copper patch having a copper foil section coupled to an unsupported film adhesive is then introduced onto an underlying composite skin opening contained within an undamaged section of a copper foil grid and covered with resin-impregnated fiberglass material. The film adhesive and resin-impregnated fiberglass material are then cured and fasteners are then reinserted within the fiberglass material, copper patch and underlying composite skin. The surface of the composite wing is then reprimed and repainted to complete the repair.

Abstract: An apparatus, system, and method for lightning strike protection and verification are provided. In one embodiment, the apparatus includes at least one fastener extending through both the structure and substructure to secure the structure and substructure together. The apparatus also includes an insert disposed between the substructure and at least a portion of the fastener, where the insert includes dielectric and magnetizable material such that the insert is capable of reducing the incidence of sparking between at least one component associated with the fastener and the substructure.