ALEXANDRIA, Va., July 3 -- United States Patent no. 12,346,902, issued on July 1, was assigned to NCHAIN LICENSING AG (Zug, Switzerland).
"Rewarded puzzle solution" was invented by Ying Chan (Cambridge, Great Britain), Dean Kramer (London) and Craig Steven Wright (London).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to distributed ledge technologies such as consensus-based blockchains. Computer-implemented methods for a secure random number generation within blockchain scripts are described. The invention is implemented using a blockchain network, which may be, for example, a Bitcoin blockchain. A first transaction that includes a puzzle is validated at a node in a blockchain network, ...