wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/b3b8d0fb-7956-4630-b6c1-33d285c893b8/4DNFITEPKX7S.r3d
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/b3b8d0fb-7956-4630-b6c1-33d285c893b8/4DNFITEPKX7S.r3d Chr4A_SC35_25.r3d
test "f8d3762e8010ffc258952bb00ff64b69" = "$(md5sum Chr4A_SC35_25.r3d)"
drs get -d https://data.4dnucleome.org 4DNFITEPKX7S