Lenovo Explores Blockchain For Document Validation Via Proposed US Patent

February 19, 2018 10:29 pm Published by

The Chinese multinational PC company Lenovo has filed a patent with the U.S. Patent and Trademark Office (USPTO) for a system to “verify integrity of physical documents,” using a “security Blockchain,” CoinTelegraph reported.

Although it was submitted in August 2016, it was not published until late last week on Feb. 15, the report said.

Using digital signatures instead of physical signatures printed with physical ink encoded into documents, the report said, provides assurance the document was not modified after signing.

The patent’s summary, the report said, explains a processor will identify an “integrity symbol” within the document, convert it into an “integrity map,” and then compare the map to the physical document to ensure the document’s integrity.

Using the security Blockchain, Lenovo writes, would allow a document owner to ensure “that they have the current authentic physical document even if multiple paper copies exist and multiple people have made entries in the chain of modification.” If multiple, fake copies of a physical document came into existence, they would “show up as orphaned blocks in the chain.”

Swiss banking giant UBS filed a similar patent with USPTO for a Blockchain-based system for client IP and user validation in December 2017, the report said.

WN.com, Jack Durschlag

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