Adding principal connector to IdPv3

[Rod Widdowson]

> Thanks Rod. I've read that document several times and I'm none the wiser.

So,  you are not trying to " allow reversal of persistent IDs" that’s what your original post seemed to indicate?  You'll need to be
more explicit.

 
> Is this a schema thing? 
Yes.

> It looks like it's failing on the resolver portion of resolver:PrincipalConnector, but removing it also doesn't fix the
> issue.

Are you sure?  Did it not maybe say:

> The prefix "pc" for element " pc:Transient " is not bound

But don't waste time getting end of life configuration working.  Use the C14N way.