Block details.
Epoch: 19 Number of transactions in block: 2 slot_no: 421001 epoch_slot_no: 10601 block_no: 420948 slot_leader_id: 8 size: 1386 time: 2017-12-30 08:38:31 proto_major: 0 proto_minor: 1 hash: \x8cfccb26667078325e8dbc6234b7ece99744360701aa39215501ebb25d8b14d4Block Operator
vrf_key: op_cert: op_cert_counter: