wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/b1f98410-9c1c-4ab5-a241-a7c7c3715980/4DNFIHFSNQE4.flex
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/b1f98410-9c1c-4ab5-a241-a7c7c3715980/4DNFIHFSNQE4.flex 005009017.flex
test "8c0cd23fada93483cc31a2b4bf2883b3" = "$(md5sum 005009017.flex)"
drs get -d https://data.4dnucleome.org 4DNFIHFSNQE4