The most important considerations for us when designing the Hyperledger-based prototype were:  1/2  BIS central bankers' speeches  Having a closed – or “permissioned blockchain” – network, where only authorised users can transact on our blockchain network.
Confidentiality and responsibility – we believe that even in the future, financial transactions will continue to be governed by today’s standards as far as confidentiality and acceptance of responsibility for effected transactions go. That’s why each individual transaction is encrypted, along with the identities of the transacting parties.