wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/efed1406-16af-4bd1-a622-e04333fbf887/4DNFI99S6U4S.bw
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/efed1406-16af-4bd1-a622-e04333fbf887/4DNFI99S6U4S.bw 4DNFI99S6U4S
test "930092c2cbccf0a442cc0fddc92529bd" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFI99S6U4S