Block details.
Epoch: 30 Number of transactions in block: 2 slot_no: 668779 epoch_slot_no: 20779 block_no: 668702 slot_leader_id: 6 size: 2109 time: 2018-02-25 17:11:11 proto_major: 0 proto_minor: 1 hash: \x068b1e07afffc5924ec77c040e29ea05ed44faef9017257871ee661fbed57b7cBlock Operator
vrf_key: op_cert: op_cert_counter: