wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/cdb83020-ce7a-4647-9d43-8097c5139d22/4DNFIKZEQG1U.bw
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/cdb83020-ce7a-4647-9d43-8097c5139d22/4DNFIKZEQG1U.bw 4DNFIKZEQG1U
test "30a6af6fde81bdbfdf87dd18380c5b6b" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIKZEQG1U