Block details.
Epoch: 168 Number of transactions in block: 3 slot_no: 3648827 epoch_slot_no: 20027 block_no: 3646770 slot_leader_id: 4 size: 1921 time: 2020-01-16 13:00:31 proto_major: 0 proto_minor: 2 hash: \xa9107ba246504c9bbcfa2bbd8e7688b62ccfdd171019a7ee936c63046e491cafBlock Operator
vrf_key: op_cert: op_cert_counter: