International Business Machines Corporation

Fabian Portmann

Alessandro Sorniotti

Elli Androulaki

Angelo De Caro

An example operation may include one or more of creating a shared secret via a blockchain node member, storing the shared secret in a memory outside the blockchain, and sharing the shared secret with one or more other blockchain node members during a setup phase of an execution environment associated with a chaincode.

Authenticating chaincode to chaincode invocations of a blockchain

An example operation may include one or more of identifying a query from a client device to locate blockchain data stored in a blockchain, performing the query and storing a query result outside the blockchain, and transmitting a query response message to the client device including a hash of the query result data.

Growing community of inventors

Zurich, Switzerland

Fabian Portmann