Blockchains (smart contracts, distributed ledgers) and rights management broadly construed are the themes of today's Spotlight Patents. Assigned to Beatdapp (CA), the first of today's Spotlight Patents addresses techniques for scalably tracking media playback using blockchain. Assigned to CEA (FR), the second patent addresses techniques for accessing anonymized data.
11,095,457, "System and method for scalably tracking media playback using blockchain," assigned to Beatdapp Software Inc. (CA)
Systems and methods for tracking media file playback are provided. First, transaction data from a platform stream is received. The transaction data corresponds to a request to play a media file from an end user. Next, the transaction data is verified. Then, the verified transaction data is signed using a cryptographic signature. Next, it is determined whether the transaction data corresponds to a valid blockchain transaction. If the transaction data corresponds to a valid blockchain transaction, the valid blockchain transaction is recorded to a blockchain. Last, the transaction data and the cryptographic signature are transmitted to one or more validation nodes.
11,093,643, "Method and system for accessing anonymized data," assigned to Commissariat A L'energie Atomique Et Aux Energies Alternatives (The French Alternative Energies and Atomic Energy Commission (CEA), (FR)
A method for anonymized storage of personal data and a method for managing access to the data. The anonymization of data is achieved by making independent, thanks to the use of a blockchain, the identifiers of the data sources and the users on the one hand, and the personal data on the other hand. The personal data are stored at addresses indexed by their hashed values in a first database and the identifiers are stored with their corresponding access profiles in a second database. The link between these two independent databases is ensured by cryptographic elements recorded in the ledger of the blockchain.