wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/4e2438e5-140c-4e85-bad8-32af4a7e3bff/4DNFIFVNHA5U.bw
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/4e2438e5-140c-4e85-bad8-32af4a7e3bff/4DNFIFVNHA5U.bw 4DNFIFVNHA5U
test "adb4d813e0b65fef1f7d3d770429a6c2" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIFVNHA5U