fail("unknown island ".errsan($o{'island'})) unless $island_found;
$o{'timestamp'}= must_param('timestamp', "^([1-9]\\d{1,20})\$");
-fail("clock skew") if $o{'timestamp'} >= $now;
+fail("clock skew") if $o{'timestamp'} > $now;
my $indatafh= upload('data');
defined $indatafh or fail("data is not a file");