These entries are queried from radb.net using whois, you can try my project getting these.
:AS62311 route6: 2001:67c:18c0::/48 descr: Intersensor SRL origin: AS62311 mnt-by: INTERSENSOR-MNT created: 2013-11-14T11:20:17Z last-modified: 2013-11-14T11:20:17Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:67c:18c0::/48 descr: Vultr Customer Route origin: AS62311 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221210 #00:37:56-18000 source: RADB last-modified: 2023-11-13T16:13:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source