I'm new here and new to braiding and am in the middle of learning how to braid dog leashes (I know I know..I've seen a lot of topics on this here, but none answer my question or don't do it clear enough xD) as mostly a hobby. I've already learnt how to braid a 4 strand braid and back-braid the handle and all and want to go to the next step of adding beads. My problem is, I don't seem to know which knot is used and if it is a separate knot attached to it or if it is made using the strands of the braid itself. I have some example photos of the knot I am asking about in specific, as it is fairly small and won't stick out next to the beads. I tried doing a half-hitch (or what I think was a half hitch) knot, and out of a few tries, one of them came out well enough, but I'm not sure if it is the same as the ones in these photos nor if I can replicate it again as I have failed after that and don't really know how to do it.
If anyone can help me out on telling me what these knots are and how I can do them on a 4 strand braid, I'd appreciate it!