MARTINA Cover Challenge
This challenge can be found on the cover of issue 2. Spot the long string of characters in the bottom-left under Martina's knee.
The Address?
This long string of hexadecimal characters punctudated by :
colons looks like an IPv6 address.
Hovever, trying to get the content at this address does not return anything.
$ curl -6 http://[the_address_on_the_cover]
curl: (7) Failed to connect to the_address_on_the_cover port 80 after 0 ms: Could not connect to server
The Code
This is actually just hex-encoded data. You can decode it with CyberChef for example.
It decodes to a URL, which contains the flag.