(A) A certificate needed to use the blockchain
(B) A password needed to access an exchange
(C) How private keys are made
(D) A transaction and block verification protocol
View Answer(D) A transaction and block verification protocol
(A) A certificate needed to use the blockchain
(B) A password needed to access an exchange
(C) How private keys are made
(D) A transaction and block verification protocol
View Answer(D) A transaction and block verification protocol