wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/66ab67e0-618d-43c8-9d9a-f5aa9defefe8/4DNFIAR3KIP5.r3d
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/66ab67e0-618d-43c8-9d9a-f5aa9defefe8/4DNFIAR3KIP5.r3d Chr4A_SC35_19.r3d
test "ca43002898825d928b36db32a6706485" = "$(md5sum Chr4A_SC35_19.r3d)"
drs get -d https://data.4dnucleome.org 4DNFIAR3KIP5