cksum= 1464714371 1735557106 reference01.2021.2.ckp.gz
MD5(reference01.2021.2.ckp.gz)= dd1daaf1a4efc49b3c9bff7bd86f27e1
SHA1(reference01.2021.2.ckp.gz)= d6e68a0c289060884d1978542d567650b157f74f