wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/f9326571-b652-4346-aea2-31153c45a791/4DNFI6I2YT1V.flex
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/f9326571-b652-4346-aea2-31153c45a791/4DNFI6I2YT1V.flex 006009003.flex
test "75b0dab81d25731a86275e382df72efc" = "$(md5sum 006009003.flex)"
drs get -d https://data.4dnucleome.org 4DNFI6I2YT1V