Block details.
Epoch: 18 Number of transactions in block: 2 slot_no: 391183 epoch_slot_no: 2383 block_no: 391131 slot_leader_id: 12 size: 1393 time: 2017-12-23 10:59:11 proto_major: 0 proto_minor: 1 hash: \x8b7a13c7462120503dd8cd367e5fefef08eade42531cab01ccace8dad2c3b070Block Operator
vrf_key: op_cert: op_cert_counter: