wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/d569dee1-84fd-460c-b19a-33b267291163/4DNFIGJR8BN9.r3d
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/d569dee1-84fd-460c-b19a-33b267291163/4DNFIGJR8BN9.r3d Chr4A_Nucl_64.r3d
test "db4769ffc0bdd8398fe2375d90484a3f" = "$(md5sum Chr4A_Nucl_64.r3d)"
drs get -d https://data.4dnucleome.org 4DNFIGJR8BN9