For reasons I can not fathom, I did not check on all the links in the leap-seconds.list I just submitted to the list.  As a result, I failed to notice that the link to IERS Bulletin A was incorrect.  The proper link is: # <ftp://maia.usno.navy.mil/ser7/ser7.dat>                                                             ^^^ Also available via HTTP.  Note: the FTP and HTTP versions *have different timestamps* (and therefore are most likely separate files in different file structures). Otherwise, the files are identical.  (This is why I've got    alias cp='cp --preserve=timestamps' in my run commands....) Also, I managed to include a dot (.) at the end of a link in my first Bulletin C number 58 message.  The proper URL for the directory in which to find the IERS leap-seconds.list file is:      <ftp://hpiers.obspm.fr/iers/bul/bulc/ntp/> "leap-seconds.list" is a symbolic link. Its "real" name is "leap-seconds.3771235866"    (4 Jul 2019 15:31:06 CEST) One may also use HTTP or HTTPS protocols to get there. Sorry about that.