I strongly support Go in this. Everything that is published should have a persistent URI!
Dear Antoine et al,
This may not be the most appropriate place to tell, but I just find it timely for URI discussions in a widest context of R&D. You can share it with the Europeana web team, if you like.
It is brilliant that Europeana keeps updating professional websites (Pro, Lab), but I would like to kindly ask Europeana to try to find a solution to maintain/re-direct/archive etc for (old) web pages and documents. Over the last years I have written several academic articles (and I am writing one right now), referring to Europeana websites, but the URLs keep breaking (I reckon this time c50% is broken just between Nov 2014 and Mar 2015), mainly due to the restructuring of the websites, I think. I understand the nature of living websites, but, from a research point of view and Europeana's lines of work, it is not nice for the writers like me, and the (future) readers.
As well as discussing PID for the portal, I would think it beneficial for Europeana to consider more persistence of its "academic resources" ;-), because they are important for the community and beyond.
How can you maintain the URIs of millions, if you cannot do it for a hundred of Europeana documents?
> Date: Wed, 25 Mar 2015 02:24:44 +0200
> From: [log in to unmask]
> Subject: Re: Your advice on minting URIs for contextual entities
> To: [log in to unmask]
> Dear all,
> I am in favor os supporting both, in the same way it is implemented below,
> or in a slightly variation (using '?' instead of '/' or '_'), like
> http://data.europeana.eu/agent/12345 or
> where the part after the number is actually optional, but present most of the time.
> On Tue, Mar 24, 2015 at 04:54:24PM +0100, Rodolphe Bailly wrote:
> > Dear Antoine,
> > We do both.
> > The URI is
> > http://data.europeana.eu/agent/12345
> > We also generate and disseminate
> > http://data.europeana.eu/agent/12345/johannes_sebastian_bach
> > but the web server doesn't take into account what is behind the last "/".
> > This way, Bach can decide to change his name is the future, he'll still have
> > the same URI.
> > R.
> > -----Message d'origine-----
> > De : Antoine Isaac [mailto:[log in to unmask]]
> > Envoyé : mardi 24 mars 2015 15:45
> > À : [log in to unmask]
> > Objet : Your advice on minting URIs for contextual entities
> > Dear all,
> > We're about to mint identifiers (URIs) for contextual entities to be used in
> > Europeana. This will concern concepts, agents or places to be used for
> > enrichment  and a couple of other things. The data will be adapted from
> > external or providers' datasets, and will eventually have to be available as
> > linked data on data.europeana.eu.
> > After internal discussions, we have to choose between two options:
> > 1. A bare numerical identifier, as in
> > http://data.europeana.eu/agent/12345
> > 2. A number combined with a human-readable label, as in
> > http://data.europeana.eu/agent/12345_johannes_sebastian_bach
> > In any case URIs would lead to machine-readable data for software clients,
> > while humans would be directed to pages like . But human-readable labels
> > in identifiers would help to identify and discuss the resources more easily.
> > So option 2 is very tempting.
> > However, option 2 is slightly harder to implement. Also, we would have to
> > choose one field in the data, and one language (as we do for other
> > communication, including this mail). Both field and language could change
> > from one source to the other, when we merge different datasets.
> > We're curious to hear whether you have a preference! We have created a small
> > poll:
> > http://doodle.com/sdpftvqq6e3shw4v
> > Note that it is not a a majority vote. We may end up not have the resource
> > to implement the more complex option. Also, one could have a killer argument
> > for one option, that defeats all other considerations :-). You can leave
> > comments at the bottom of the poll page.
> > Thanks a lot for the advice!
> > Antoine
> > 
> > https://docs.google.com/document/d/1JvjrWMTpMIH7WnuieNqcT0zpJAXUPo6x4uMBj1pE
> > x0Y/
> >  http://invis.io/RU2G1HUBG