Block details.
Epoch: 191 Number of transactions in block: 9 slot_no: 4128677 epoch_slot_no: 3077 block_no: 4126572 slot_leader_id: 4 size: 9575 time: 2020-05-06 14:50:31 proto_major: 1 proto_minor: 0 hash: \xc6bb2f81cf47252097fea469368cbe3c768e66ce0e8b8d019d1093bbc9cbe4caBlock Operator
vrf_key: op_cert: op_cert_counter: