Visa International Service Association

Anil Somani

Mohamed Nosseir

Quan Wang

A blockchain system for ownership verification may include one or more issuer network nodes and one or more verification network nodes. An issuer network node may be configured to receive a request including a public key to issue a credential, provision the credential to the communication device, generate a payload derived from hashing the credential and the public key, store the payload in a record of a blockchain, and synchronize the record to other network nodes on the blockchain. A verification network node may be configured to receive the credential, the public key, and a signature generated by the communication device to request access to a resource, verify the signature using the public key, generate a hash value based on the credential and the public key, determine that the hash value is stored in the blockchain, and authenticate the communication device for access to the requested resource.

Methods and systems for ownership verification using blockchain

Provided is a computer-implemented method for implementing a blockchain-based rewards network. The method includes establishing a blockchain network including administrative nodes, client nodes, and entity nodes, maintaining a distributed ledger on at least a portion of the administrative nodes of the blockchain network, receiving, from a plurality of entities, rewards data including a plurality of offers, each offer of the plurality of offers corresponding to at least one entity identifier, publishing the rewards data to the distributed ledger, querying the distributed ledger based on at least one entity identifier received from a client node, and determining, based on the distributed ledger, at least one offer corresponding to the at least one entity identifier received from the client node.

System, method, and apparatus for implementing a blockchain-based rewards network

Provided is a computer-implemented method for implementing a blockchain-based entity identification network. The method includes establishing a blockchain network including a plurality of nodes, the plurality of nodes including a plurality of client nodes and a plurality of entity nodes, maintaining a distributed ledger on a plurality of administrative nodes of the blockchain network, receiving, from at least one node of the plurality of nodes, entity data and at least one entity identifier, the entity data corresponding to the at least one entity identifier, publishing the entity data to the distributed ledger, querying the distributed ledger based on at least one entity identifier received from a client node, and determining, based on the distributed ledger, entity data corresponding to the at least one entity identifier received from the client node.

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Foster City, CA, United States of America

Anil Somani