When you access a HoH this way, a random child-hash is printed; the is no guaranty it will be the first child-hash because the hash has no concept of element ordering. You will receive a random element. 

# All these are random accesses.
my ( $any ) =  values %$hoh;
print "source: ", ${[values %$hoh]}[0]{source};

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In reply to Re: Direct reference to any element in a hash-of-hash by ioannis
in thread Direct reference to any element in a hash-of-hash by jaa

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