Re: [semanticweb] Purl.org offline?

Martin Hepp (UniBW) wrote:

> Dear all:
> 
> At least from two testpoints in Germany and Austria, the whole purl.org
> service seems to be currently unavailable. I cannot fetch any purl-based
> vocabularies and documentation at the moment,
[...]
> Does anybody have any information on this?

Thanks for this; I've passed this on to the new purl/purlz list and some 
OCLC folks.

> I assume many SW-related applications will run into trouble fetching
> files today if this problem persists.

Well, I'm sure it's inconvenient, but this is probably a good reminder 
to everyone that apps can always be made more robust. Having a local 
schema cache is a good idea. I think also having some habits around 
PGP-signing of schemas so that authentic copies can be picked up from 
directories and registries would be a healthy thing for us all to be 
doing also. I always used to PGP sign the FOAF schema document and point 
to it with a wot:assurance link. This got a bit fiddly when I set up 
content negotiation so I didn't keep up with the practice for a while, 
but I reckon it's worth doing. Then maybe schema and app authors can 
sign each other's keys at SW conferences etc., to allow some basic 
checking of schema copies that are bundled with apps...

cheers,

Dan

--
http://danbri.org/