Block details.
Epoch: 29 Number of transactions in block: 1 slot_no: 644087 epoch_slot_no: 17687 block_no: 644011 slot_leader_id: 3 size: 1024 time: 2018-02-20 00:00:31 proto_major: 0 proto_minor: 1 hash: \x045300e07e3366d548fe7ca108bc63680ed90b145278db450db0d2460f1c2045Block Operator
vrf_key: op_cert: op_cert_counter: