According to the new patent application of Lenovo, the Chinese company intends to use the blockchain to check paper documents.
In an application published by the US Patent and Trademark Office, Lenovo describes a system using digital signatures that are encrypted in paper documents and can be processed by computers to verify the authenticity of the document.
According to the public data, the application was originally filed in August 2016.
The processing machine decrypts the signature and converts it into a digital “map” of the document, which can then be compared to a physical copy of the document. The patent application states that the digital signature is a “security blockchain”, where the blocks are digital signatures. As Lenovo explains, the “security blockchain” is a “distributed database that stores an ever-increasing data register that is protected from change and revision.”
In addition, each blockchain contains “information about a paper document at different times”.
Lenovo describes its product as follows:
“Using a security blockchain, anyone can check whether a paper document is genuine – even if there are a lot of paper copies and a lot of people who have left changes in the modification chain. If there are any fakes, they will be shown in the chain as lost blocks. To check a paper copy, the user needs to take a snapshot of the code printed on the paper document. “
According to Lenovo, the advantage of its product is that all parties that have copies of a particular document can be sure that they “look at the exact copy” of the document at any time. This eliminates the possibility of a significant editing of the document after it is “inked”.
Lenovo is experimenting with the blockchain not for the first time. Last year, Forbes wrote about a joint project between IBM and Lenovo to develop an invective system based on the blockchain. It was assumed that the project’s goal would be to increase transparency in the processing of bills and data.