wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/ff86e803-9574-4fcb-b6a6-7de2a068c5c9/4DNFIKVEUI47.r3d
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/ff86e803-9574-4fcb-b6a6-7de2a068c5c9/4DNFIKVEUI47.r3d Chr4A_SC35_16.r3d
test "7beeaece7f6e53836468fd12705dbbc2" = "$(md5sum Chr4A_SC35_16.r3d)"
drs get -d https://data.4dnucleome.org 4DNFIKVEUI47