ALEXANDRIA, Va., June 17 -- United States Patent no. 12,314,982, issued on May 27, was assigned to Brave Software Inc. (San Fransisco, Calif.).
"Decentralized privacy-preserving rewards with cryptographic black box accumulators" was invented by Goncalo Pestana (London) and Benjamin Livshits (London).
According to the abstract* released by the U.S. Patent & Trademark Office: "A decentralized and trust-minimizing computer architecture for computing rewards for users of an advertising system includes cryptographic black box accumulators (BBA), which is a cryptographic counter that only the issuer can update. An attention application requests initialization of a BBA from a guardian and subsequently requests updates to the BBA to track interac...