Smart contracts, (blockchains, distributed ledgers) and rights management broadly construed are the themes of today's Spotlight Patents. The first Wells Fargo patent addresses techniques for security settlement using group signatures. The second patent addresses techniques for virtual wallet insurance.
11483162, “Security settlement using group signatures,” assigned to Wells Fargo Bank.
Systems and methods relating to settlement of securities without revealing ownership including the end owner are described. In some implementations, ownership or control of a security may be managed by using group membership technology to revoke the signing rights of the seller and adding signing rights to the buyer. Group membership with group signatures allow for one group public key and a plurality of private keys, where each private key is associated with a group member. Signatures create by different group members are indistinguishable to verifiers but a group manager is able to determine which member has signed, link member signatures, implement controls and/or limits, and revoke and add signatory capability when needed. In some implementations, revocation of signatory capability is done with the cooperation of a Digital Certificate Authority.
11481849, “Virtual wallet insurance,” assigned to Wells Fargo Bank.
Techniques are described for providing insurance coverage for a virtual wallet stored on a computing device. The virtual wallet has a value equal to a sum of assigned values of a plurality of virtual financial assets included in the virtual wallet. A user of the computing device purchases an insurance policy for the virtual wallet with an insured amount based on the value of the virtual wallet. The computing device is configured to send messages to an insurance server reporting an updated value of the virtual wallet based on changes to the assigned values of the virtual financial assets. The insurance server updates the insured amount of the insurance policy based on the updated value of the virtual wallet. Upon the virtual wallet being compromised, the insurance policy has an insured amount equal to the most recent updated value of the virtual wallet.