Can you post a link?

You mean

@TMC1995
"~" followed by the save ID

@TMC1995
Or just post the URL that it is displayed on here and someone will be sure to post it for you.

Here is the URL:
https://powdertoy.co.uk/Browse/View.html?ID=198075
You get the number at the end, then put ~ in front of it.
So it would be:
~ 198075
But without a space.

@TMC1995
There is a wiki guide