Kyndryl, Inc.

International Business Machines Corporation

Anuj Kumar Garg

Kuntal Dey

Sanju Soman Chathoth Kurungara

Himanshu Gaur

Neeraj Kumar Gupta

Jeffrey Robert Stangeland

Himanshu Gupta

Mukesh Kumar Mohania

Vineet Khatri

Mani Madhukar

Aspects of the present invention disclose a method, computer program product, and system for management and usage of shared authentication credentials. The method includes one or more processors updating usage information associated with an authentication credential with a media access control address (MAC address) that corresponds to a computing device that corresponds to using the authentication credential. The method further includes one or more processors receiving a login request that includes the authentication credential from a computing device. The method further includes one or more processors fetching a MAC address of the computing device that sent the login request. The method further includes one or more processors validating the authentication credentials and the MAC address.

Management of shared authentication credentials

A processor may receive a smart contract. The processor may generate an entity policy. The entity policy may provide one or more world-state rules associated with a particular entity. The processor may update, responsive to receiving the smart contract, a world-state database of the particular entity. The one or more world-state rules may affect the world-state database of the particular entity differently than the world-state database of a second entity.

Blockchain selective world state database

An example operation includes one or more of identifying, by an archiving server node, a unique archival policy for each of a plurality of blockchain nodes, executing, by the archiving server node, a consensus mechanism to determine at least one block from a plurality of blocks of the plurality of the blockchain nodes to be archived, and running the unique archival policy to archive the at least one block from the plurality of the blocks.

Data archive

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Ghaiziabad, India

Anuj Kumar Garg