We continue highlighting a sample of patent applications that mention digital rights and blockchain in the patent specification -- the broad written description of the invention. See this article in the Wiki for a discussion of blockchain technologies and their applications in several domains.
Assigned to IBM, the first application discloses techniques for a personal ledger blockchain. Assigned to BofA, the second application discloses techniques for a transparent self-managing rewards program using blockchain and smart contracts.
20170177898, "Personal ledger blockchain," assigned to IBM
A system, method, and computer readable storage medium configured for storing encrypted data in a blockchain. To write additional data in a blockchain, a request is received at a computing node. The request is typically cryptographically signed by a user system to include a new transaction with additional data in the blockchain. The additional data is previously encrypted with an encryption key. A new block that records the new transaction with additional data in the blockchain is added. To read the additional data in a blockchain, a request is received at a computing node with a transaction identifier and a decryption key from a user system to access data journaled as part of the blockchain in the transaction database. The transaction database is searched using the identifier. In response, to finding the corresponding block in the blockchain, the data is decrypted using the decryption key.
20170140408, "Transparent self-managing rewards program using blockchain and smart contracts," assigned to Bank of America.
Embodiments enable a transparent self-managing rewards program using a smart contract block chain distributed network by receiving a transaction record associated with a smart contract, wherein the transaction record comprises input data indicating one or more actions taken by a user; accessing a distributed ledger stored in the memory device, wherein the distributed ledger is updated based on communications from a block chain distributed network; using smart contract logic associated with the smart contract, determining whether the indicated one or more actions meets a condition of the smart contract, thereby validating the transaction record, and in some embodiments, in response to determining the one or more actions meets the condition of the smart contract, thereby validating the transaction record, initiating rewarding the user with rewards corresponding to the condition.