DIN is een verificatiemethode die al jaren gebruikt wordt door banken.
https://gravatar.com/devotedlyd7fba3f89e
http://oldsite.giessen46ers.de/fantalk/viewtopic.php?f=1&t=260612
https://talkingpoints.org/subx/showthread.php?tid=8111
https://ufr-2020.front5.picapo.net/forums/viewtopic.php?pid=277448
https://www.ww2.site/forum/viewtopic.php?t=124786
http://47.88.101.141/forum.php?mod=viewthread&tid=266686&extra=
http://horsecity.ru/phpBB3/viewtopic.php?f=18&t=310685
http://myweed.rocks/viewtopic.php?t=33307
https://debate.socialism.nl/forum/showthread.php?tid=299300
http://oldsite.giessen46ers.de/fantalk/viewtopic.php?f=1&t=208977
http://www.lada-xray.net/showthread.php?p=238997#post238997
http://horsecity.ru/phpBB3/viewtopic.php?f=14&t=302550
http://myweed.rocks/viewtopic.php?t=39394
https://democratstoughlove.com/showthread.php?tid=10840
https://debate.socialism.nl/forum/showthread.php?tid=302341