cksum= 2144511397 1532474959 reference01.2017.2.ckp.gz
MD5(reference01.2017.2.ckp.gz)= 2ab929c7b53c32a800b912d314312c9c
SHA1(reference01.2017.2.ckp.gz)= 24b26ce228cdcea4f0a1b62d02e518b307c68e93