New patents are issued by the USPTO on Tuesdays. Both of today's Spotlight Patents continue the theme of blockchains (distributed ledgers, smart contracts) and rights management. Assigned to Cisco, the first of today's patents addresses techniques for content and service sharing. Assigned to Domus Tower (AU), the second patent addresses techniques for distributing work load of high-volume per second transactions recorded to append-only ledgers.
10,509,891, "Method and system for content and service sharing," assigned to Cisco.
In one embodiment, an instruction is received at a blockchain server from a first digital rights management (DRM) client, the instruction including an instruction to transfer a DRM license to an encrypted content item to a second DRM client. A block to be recorded in a blockchain, is created, the block including a content item ID of said encrypted content item, one of a device ID of a device including the second DRM client or a user ID of a user of the second DRM client, DRM license information for said DRM license, and a DRM decryption key for decrypting said encrypted content item. The block is recorded in the blockchain. A confirmation message is sent to the second DRM client confirming that the block was written to the blockchain. Related systems, methods, and apparatuses are also described.
10,515,409, "Distributing work load of high-volume per second transactions recorded to append-only ledgers," assigned to Domus Tower, Inc. (AU)
Various of the disclosed embodiments concern systems and methods for expediting the settlement of securities traded on an exchange. A settlement system can generate electronic records of financial transactions by bundling a trade report, clearing instructions, etc., into a cryptographic ledger. Current cryptographic ledgers do not handle transactions at the rate which securities are traded. In order to improve rate processing for cryptographic ledgers sharded transaction trees are used.