In a numbered document, I might have:
1.3.1 some text here

Elsewhere in the document, I would like to have:
6.3.4 see 1.3.1
where "1.3.1" is a hyperlink to paragraph 1.3.1.

And if the numbering of paragraph 1.3.1 changes then the text in the
associated hyperlink also changes.

Thanks!