Thank you agent_smith.Actually, i had posted these two profiles back in may 2021 in my other thread with mid line eyeknots and you had also weighed in with some comments but i guess you have forgotten it.
You can verify it here.
The image of profile A has vanished but thankfully the image of profile B has survived.
From what i understand, Dan claims he has seen something relevant in a very old knot book, but he's not entirely sure.
Anyway, i 'm not claiming anything, if it turns out to be practical, it should be thoroughly tested to find any vulnerabilities, before being used in the field.