TIMESTAMP = 1505660595
SHA256 (google-protobuf-v3.4.1_GH0.tar.gz) = 8e0236242106e680b4f9f576cc44b8cd711e948b20a9fc07769b0a20ceab9cc4
SIZE (google-protobuf-v3.4.1_GH0.tar.gz) = 4490100