Have you considered establishing an IANA registry? I have not talked to the IANA folks, but this might seem the longest-term solution. I'd be happy to make the necessary inquiries if there's interest. Paul Eggert wrote:
At Tue, 5 Aug 2003 17:05:31 -0400, Jonathan Lennox <lennox@cs.columbia.edu> writes:
Currently reference [9] refers to <http://www.twinsun.com/tz/tz-link.htm>, which is tz-link.htm from tzcode. I've been asked, though, whether this is the best way to make reference to the TZ database; and I have to concede that it might not be, since it's dependent on Twinsun's continuing support.
The only other plausible reference would be to <ftp://elsie.nci.nih.gov/pub/>, but that's a little more forbidding to non-experts. In theory the elsie URL has the same problem as the twinsun URL, as the elsie URL depends on NCI's continuing support; but it has been around longer.
You might consider including both URLs.