Block details.
Epoch: 19 Number of transactions in block: 5 slot_no: 417316 epoch_slot_no: 6916 block_no: 417263 slot_leader_id: 12 size: 2430 time: 2017-12-29 12:10:11 proto_major: 0 proto_minor: 1 hash: \xec1a9f761bbe185fe5f2e2164ba051e77a80576c7ab702bab6735eff40e07f9eBlock Operator
vrf_key: op_cert: op_cert_counter: