Block details.
Epoch: 39 Number of transactions in block: 1 slot_no: 858006 epoch_slot_no: 15606 block_no: 857911 slot_leader_id: 7 size: 991 time: 2018-04-10 12:26:51 proto_major: 0 proto_minor: 1 hash: \xf6b479a90b395036321afbe3fb471675ddb6047d835e5a75efa082aba695dc03Block Operator
vrf_key: op_cert: op_cert_counter: