Visa International Service Association

Balkrishna Pangam

Ajit Vilasrao Patil

Yew Kuann Cheng

Atindra Nath Ghosh

A method includes a full node storing a blockchain and being one of a plurality of full nodes forming a blockchain network receiving a message comprising update image data and a smart contract identifier from a first user device. The full node can then determine stored image data associated with the smart contract identifier. The full node can also determine whether or not image comparison data based on received image data and stored image data is consistent with a smart contract associated with the smart contract identifier and can then generate an entry for a block of the blockchain, comprising at least the smart contract identifier, the updated image data, and image comparison data. The full node can generate the block of the blockchain and transmit the block to the plurality of full nodes. The plurality of full nodes respectively verify the block. The full node can store the block on the blockchain and transmit an indication of whether or not the block was stored on the blockchain to the first user device.

Image blockchain system and method

A method and system corresponding to a secure architecture for executing Internet of Things (IoT) device actions using blockchains is described. A network of IoT devices can manage two blockchains. The first blockchain can store operational data, collected from the IoT devices and written to the first blockchain. A second blockchain can be used to store action data.

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Singapore, Singapore

Balkrishna Pangam