Block details.
Epoch: 90 Number of transactions in block: 1 slot_no: 1961667 epoch_slot_no: 17667 block_no: 1960185 slot_leader_id: 4 size: 1026 time: 2018-12-21 23:53:51 proto_major: 0 proto_minor: 2 hash: \xaab2c6c5a74b53febd23aee22483b30a05d6bd405b1076e6ac65ac6784ea7a4eBlock Operator
vrf_key: op_cert: op_cert_counter: