Block details.
Epoch: 19 Number of transactions in block: 2 slot_no: 426104 epoch_slot_no: 15704 block_no: 426050 slot_leader_id: 7 size: 1351 time: 2017-12-31 12:59:31 proto_major: 0 proto_minor: 1 hash: \xca964272c84645e786a14e789cdb69241aba427668e4e8ff09f916943031631bBlock Operator
vrf_key: op_cert: op_cert_counter: