[arch-general] Arch Forum problem

[Travis]

if you try to register
https://bbs.archlinux.org/register.php

it has a anti-spam question.
that fails
on both cent and arch
cent:
[x at x /]$ date -u +%V$(uname)|sha256sum|sed 's/\W//g
> ^C
[x at x /]$

arch:
[root at alarmpi ~]# echo date -u +%V$(uname)|sha256sum|sed 's/\W//g
>
[root at alarmpi ~]# date -u +%V$(uname)|sha256sum|sed 's/\W//g
>
[root at alarmpi ~]#

...


also the post i'm asking about
(and was willing to register to the arch forum)

https://bbs.archlinux.org/viewtopic.php?id=183086

someone did a RTFM response
and the wiki/manual page person reference doesn't have a straight answer

and please don't complain about it being an old post, i'm trying to help
you guys, as that post comes up in google first page and with fairly board
google searches.
 so a proper answer would help other potential Arch users.