$ORIGIN example.
example.      86400  IN  SOA     ns1 admin 2018031900 (
                                 1800 900 604800 86400 )
example.      86400  IN  NS      ns1.example.
example.      86400  IN  NS      ns2.example.
example.      86400  IN  ZONEMD  2018031900 1 1 (
                                 62e6cf51b02e54b9
                                 b5f967d547ce4313
                                 6792901f9f88e637
                                 493daaf401c92c27
                                 9dd10f0edb1c56f8
                                 080211f8480ee306 )
example.      86400  IN  ZONEMD  2018031900 1 2 (
                                 08cfa1115c7b948c
                                 4163a901270395ea
                                 226a930cd2cbcf2f
                                 a9a5e6eb85f37c8a
                                 4e114d884e66f176
                                 eab121cb02db7d65
                                 2e0cc4827e7a3204
                                 f166b47e5613fd27 )
example.      86400  IN  ZONEMD  2018031900 1 240 (
                                 e2d523f654b9422a
                                 96c5a8f44607bbee )
example.      86400  IN  ZONEMD  2018031900 241 1 (
                                 e1846540e33a9e41
                                 89792d18d5d131f6
                                 05fc283e )
ns1.example.  3600   IN  A       203.0.113.63
ns2.example.  86400  IN  TXT     "This example has multiple digests"
NS2.EXAMPLE.  3600   IN  AAAA    2001:db8::63