Block details.
Epoch: 18 Number of transactions in block: 3 slot_no: 403256 epoch_slot_no: 14456 block_no: 403204 slot_leader_id: 13 size: 1702 time: 2017-12-26 06:03:31 proto_major: 0 proto_minor: 1 hash: \xd37fc73118ea204ab6820450622ac2aee55eeecb026294e42cc961a0964adb8eBlock Operator
vrf_key: op_cert: op_cert_counter: