Block details.
Epoch: 57 Number of transactions in block: 1 slot_no: 1251044 epoch_slot_no: 19844 block_no: 1250863 slot_leader_id: 3 size: 1019 time: 2018-07-10 11:59:31 proto_major: 0 proto_minor: 1 hash: \xdf23f94877e42e6865113fa7c5fc6129164ad629fca2691fdcde0774aaa7e06aBlock Operator
vrf_key: op_cert: op_cert_counter: