I've used both Data::UUID and UUID::Tiny in the past and had good results with both. Although I've not tried it yet, Data::GUID::Any also looks good.

package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

In reply to Re^2: unique file ID by tobyink
in thread unique file ID by baxy77bax

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