wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/935a145c-fab4-48d2-91e6-1e809575ba9e/4DNFI4ZVWYM7.r3d
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/935a145c-fab4-48d2-91e6-1e809575ba9e/4DNFI4ZVWYM7.r3d Chr4A_SC35_45.r3d
test "04a841dc65f8e5a12d0f178a9cdaee29" = "$(md5sum Chr4A_SC35_45.r3d)"
drs get -d https://data.4dnucleome.org 4DNFI4ZVWYM7