Block details.
Epoch: 31 Number of transactions in block: 3 slot_no: 669763 epoch_slot_no: 163 block_no: 669686 slot_leader_id: 4 size: 1828 time: 2018-02-25 22:39:11 proto_major: 0 proto_minor: 1 hash: \x0341c3714e38a3507abe396f7563f6ff9d47ca711db697d1c579e1c89d50a25eBlock Operator
vrf_key: op_cert: op_cert_counter: