A computer that operates with a distributed ledger system, and stores a copy of a distributed ledger file that is stored by multiple different client computers. The distributed ledger file having plural values therein, and the distributed ledger file also having encryption values that verify the values in the distributed ledger file. The computer processes the values to verify at least some of the values in the distributed ledger file using the encryption values in a way that ascertains a cryptographic accuracy of the values, and to create a report indicating values that have been verified using the encryption values. The computer can use its GPU to process these values in parallel. The computer can also set new sequence numbers using a distributed system, for new values to be added to the distributed ledger.