ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,992, issued on Nov. 25, was assigned to Koninklijke KPN N.V. (Rotterdam, Netherlands).

"Authenticating a transaction" was invented by Hubertus Mattheus Appelboom (Amstelveen, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a transaction verification system for authenticating a transaction performed at a transaction system. The transaction system provides a visual presentation of the transaction, comprising uncoded data and machine-extractable coded data. The transaction system also provides verification data for verifying one or more authenticity features of at least part of the uncoded data. The verification data...