wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/f65fc84f-842f-4d58-9b5c-d76d0aa74dab/4DNFI1V21U17.bw
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/f65fc84f-842f-4d58-9b5c-d76d0aa74dab/4DNFI1V21U17.bw 4DNFI1V21U17
test "954dffd096cf0e43ef54fe1cc31a8ecb" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFI1V21U17