# Check what's in Pinto CPAN mirror:
pinto list --root $PINTO_MIRROR | grep Your::Module | head -1
# ...or do the same locally (note the space after the module name)
grep 'Smurf::Foo ' ~/.perl-cpm/sources/$DARKPAN/02packages.details.txt
# Downgrade a module using cpm
cpm install --reinstall --no-prebuilt --resolver metadb --resolver 02packages,$DARKPAN_NAME $DARKPAN_FQDN_WITH_BASIC_AUTH/authors/id/U/UB/UBUNTU/Smurf-Foo-1.23.tar.gz