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The US Patent and Trademark Office (USPTO) awarded Xerox a patent for a blockchain-based auditing system for electronic files, according to a patent application published on November 13.
Xerox, known for its namesake digital printing and copying devices, filed the patent for the first time in August 2017. The patent describes a blockchain-based system for secure registration of revisions to electronic documents.
The technology offered by Xerox can presumably detect if a file has been altered and tracks the history of changes made. Because of the decentralized verification mechanism, the system becomes so resistant to tampering, the states of the deposit.
Explaining the technology behind the patent, Xerox describes a series of blockchain nodes that can approve or reject any changes made. The filing also implies that the management network notifies its users whenever a particular node fails to approve the document or the content differs from its verified version.
Xerox believes that the new patented technology can be used to control electronic files in many areas, such as medical and financial documents, tax documents and educational documents. The filing specifically mentions criminal investigation records, such as interviews notes, crime scene photos, and DNA test results that must be protected from tampering and tampering.
In 2016, Xerox filed a similar patent, with the goal of creating a blockchain-based timestamp protocol for data such as copies or images. According to the filing, the company wanted the marks to be irrevocable, which means that the data bearing that mark could be presented in court as evidence.
The leading technology and electronics companies have filed a series of patent applications for various proprietary iterations and applications of blockchain technology. A September report said IBM had filed more blockchain patent applications than any other company at the time of publication.
IBM has filed over 90 blockchain patents, the most recent of which aims to use blockchain technology to help scientific research and provide a record of its results.
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