I had some .arc files that were missing from disk and I ran the following to
fix the issue:

CHANGE ARCHIVELOG ALL CROSSCHECK;

When I run the same command again, I see validation failed messages for old .arc files (see below) for an example. Is there a RMAN command I can
run that will remove thsese messages. As mentioned, they appeary to be
innocuous but I would like to clean up so things are a bit more ledgible.

validation failed for archived log
archived log file name=/archive/cdrtest/cdrtest_76_1_740904300.arc RECID=76 STAMP=741513745

Thanks to all who answer