cksum= 3413021248 1735584797 reference01.2021.1.ckp.gz
MD5(reference01.2021.1.ckp.gz)= 5816e7ed11e3743bbdb3da1d6777d09d
SHA1(reference01.2021.1.ckp.gz)= 1a74210f42373a7c3f2c821ec691d606b3a4e600