Block details.
Epoch: 28 Number of transactions in block: 1 slot_no: 621829 epoch_slot_no: 17029 block_no: 621754 slot_leader_id: 12 size: 991 time: 2018-02-14 20:21:11 proto_major: 0 proto_minor: 1 hash: \x9c221780dc886e324298127a046091aedbee638d53898337e8ae8723e18287a5Block Operator
vrf_key: op_cert: op_cert_counter: