wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/7fff7a07-93a7-4f46-99cf-852d19716ce2/4DNFI1T8AIG4.flex
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/7fff7a07-93a7-4f46-99cf-852d19716ce2/4DNFI1T8AIG4.flex 006010014.flex
test "971c104f8ed061270e2e8965cf46b1bc" = "$(md5sum 006010014.flex)"
drs get -d https://data.4dnucleome.org 4DNFI1T8AIG4