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Permissioned Blockchain

    Permissioned blockchains are blockchains that require access to participate. In these blockchain types, a control layer runs on top of the blockchain and governs the actions performed by the allowed participants. Permissioned blockchains use governance structures differently than private blockchains and public blockchains, employing different mechanisms for access controls (such as proof of identity) and digital signatures (such as multi-factor authentication) to ensure only authorized participants can access the blockchain and all transactions are valid. A permissioned system (or network) is highly configured and controlled by the owners, restricting access and participation.