According to the US Patent and Trademark site online, Nasdaq has applied for a patent called Systems And Methods Of Blockchain Transaction Recordation.
A computer system is provided that communicates with a distributed Blockchain computing system that includes multiple computing nodes. The exchange stores an order book and a plurality of digital wallets associated with different clients. The computer system receives new data transaction requests that are added to the order book. A match is identified between data transaction requests and hashes associated with the digital wallets associated with the respective data transaction requests are generated. The counterparties receive the hashes of the other party along with information on the match and each party causes Blockchain transactions to be added to the Blockchain of the Blockchain computing system. The computing system then monitors the Blockchain to determine if both sides of the match has been added to the Blockchain.
The application describes an exchange system consisting of digital wallets, an order book and matching engine, with a “closed Blockchain” utilized as a record of transactions that is updated in real-time.
Let the looming war on Blockchain patents begin…