Alan, hello.
On 29 Oct 2015, at 5:59, Alan Ruttenberg wrote:
> I'm astounded to read this comment. The OCLC server has been running
> for
> something like 18 years with minimal downtime. Engineering and
> supporting
> any service for this period of time, particularly one which serves a
> community, at no cost, is amazing.
If I recall correctly, these point have been rehearsed more than once on
this list, specifically in order to acknowledge OCLC's efforts here.
Many on this list will be aware of OCLC's innovation with respect to
purl.org and of their past contributions to its continuing support.
However it does seem clear that the resources they are able to devote to
it are less than what the service actually needs. That's fair enough.
But in that case I think it is incumbent on them to think equally
imaginatively, and ideally publicly, about what to do to let the service
move somewhere else.
The reason why one might trust the unbranded domain
purl.org above, say,
purl.oclc.org or
purl.anything.org is precisely because such a
transition plan has implicitly been conceived of at the very beginning.
w3id.org is a bit of a lash-up, and I doubt its creators would disagree.
It doesn't have much in the way of a UI, nor yet much visibility, but
the core idea is a terrific one by virtue of being very simple, and its
persistence and succession plan is both explicit and plausible.
Thus
w3id.org is a _believable_ long-term identifier;
purl.org isn't,
now. I make that statement categorically, because it is a subjective
thing: I do believe that
w3id.org has at least the potential to be
around for a long time; I do not personally believe that
purl.org will
be around for very long, and I now actively discourage people from
considering that as a 'long term URI' solution.
The long-term persistence of archives, libraries and museums is partly
technical -- making sure the beetles don't eat the parchment or that
bugs don't eat the filesystems -- and partly social. OCLC may have
managed the technical part of persisting
purl.org, but they're losing
the battle with the social part.
> Perhaps start the discussion with examples of systems and support
> efforts
> you have experience with that meet or exceed the 18 year span of OCLC.
ArXiv started in 1991; I don't know what the oldest stuff is at ADS [1],
but there's at least some stuff from the 70s; CDS [2] has been going
since 1983.
[1]
http://adsabs.harvard.edu
[2]
http://cdsweb.u-strasbg.fr/about
All the best,
Norman
--
Norman Gray :
https://nxg.me.uk
SUPA School of Physics and Astronomy, University of Glasgow, UK