LISTSERV mailing list manager LISTSERV 16.5

Help for CODE4LIB Archives


CODE4LIB Archives

CODE4LIB Archives


CODE4LIB@LISTS.CLIR.ORG


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

CODE4LIB Home

CODE4LIB Home

CODE4LIB  November 2009

CODE4LIB November 2009

Subject:

Re: Assigning DOI for local content

From:

Jonathan Rochkind <[log in to unmask]>

Reply-To:

Code for Libraries <[log in to unmask]>

Date:

Mon, 23 Nov 2009 16:03:01 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (135 lines)

The actual "handle" is "10.1074/jbc.M004545200 ".  If your software 
wants to get a "handle" to give it to any handle resolver of it's 
choice, it's going to have to parse the "doi:" or "info:" versions to 
get the handle out first.  The info version is a URI that has a DOI 
handle embedded in it.  The doi version is... um, I dunno, just a 
convention, I think, that has a DOI handle embedded in it.

Likewise, if your software had a URI, and was smart enough to know that 
the URI "http://dx.doi.org/10.1074/jbc.M004545200" actually had a handle 
embedded in it, it could strip the handle out, and then resolve it 
against some other handle server that participates in the handle 
network, like hdl.handle.net.  But that would be kind of going against 
the principle to treat URI's as opaque identifiers and not parse them 
for internal data.

But me, I end up going against that principle all the time in actual 
practice, actually for scenarios kind of analagous to, but less 
well-defined and spec'd than, getting the actual "handle" out of the URI 
and resolving it against some other service. For instance, getting an 
OCLCnum out of an http://worldcat.oclc.org/ URI, to resolve against my 
local catalog that knows something about OCLCnums, but doesn't know 
anything about http://worldcat.oclc.org URIs that happen to have an 
OCLCnum embedded in them. Or getting an ASIN out of a 
http://www.amazon.com/ URI, to resolve against Amazon's _own_ web 
services, which ironically know something about ASIN's but don't know 
anything about www.amazon.com URI's that have an ASIN embedded in them.  
Actually quite analagous to getting the actual handle out of an 
http://dx.doi.org or http://hdi.handle.net URI, in order to resolve 
against the resolver of choice.

Jonathan

Ross Singer wrote:
> On Mon, Nov 23, 2009 at 2:52 PM, Jonathan Rochkind <[log in to unmask]> wrote:
>
>   
>> Well, here's the trick about handles, as I understand it.  A handle, for
>> instance, a DOI, is "10.1074/jbc.M004545200".
>>     
>
> Well, actually, it could be:
> 10.1074/jbc.M004545200
> doi:10.1074/jbc.M004545200
> info:doi/10.1074/jbc.M004545200
>
> etc.  But there's still got to be some mechanism to get from there to:
> http://dx.doi.org/10.1074/jbc.M004545200
> or
> http://dx.hellman.net/10.1074/jbc.M004545200
>
> I don't see why it's any different, fundamentally, than:
> http://purl.hellman.net/?purl=http%3A%2F%2Fpurl.org%2FNET%2Fdoi%2F10.1074%2Fjbc.M004545200
>
> besides being prettier.
>
> Anyway, my argument wasn't that Purl was technologically more sound
> that handles -- Purl services have a major single-point-of-failure
> problem -- it's just that I don't buy the argument that handles are
> somehow superior because they aren't limited to HTTP.
>
> What I'm saying is that there plenty of valid reasons to value handles
> more than purls (or any other indirection service), but independence
> to HTTP isn't one of them.
>
> -Ross.
>
>   
>> While, for DOI handles, normally we resolve that using dx.doi.org, at
>> http://dx.doi.org/10.1074/jbc.M004545200, that is not actually a requirement
>> of the handle system. You can resolve it through any handle server, over
>> HTTP or otherwise. Even if it's still over HTTP, it doesn't have to be at
>> dx.doi.org, it can be via any handle resolver.
>>
>> For instance, check this out, it works:
>>
>> http://hdl.handle.net/10.1074/jbc.M004545200
>>
>> Cause the DOI is really just a subset of Handles, any resolver participating
>> in the handle network can resolve em.  In Eric's hypothetical use case, that
>> could be a local enterprise handle resolver of some kind. (Although I'm not
>> totally sure that would keep your usage data private; the documentation I've
>> seen compares the handle network to DNS, it's a distributed system, I'm not
>> sure in what cases handle resolution requests are sent 'upstream' by the
>> handle resolver, and if actual individual lookups are revealed by that or
>> not. But in any case, when Ross suggests -- "Presumably dx.hellman.net would
>> need to harvest its metadata from somewhere, which seems like it would leave
>> a footprint. It also needs some mechanism to stay in sync with the master
>> index." -- my reading this suggests this is _built into_ the handle
>> protocol, it's part of handle from the very start (again, the DNS analogy,
>> with the emphasis on the distributed resolution aspect), you don't need to
>> invent it yourself. The details of exactly how it works, I don't know enough
>> to say.  )
>>
>> Now, I'm somewhat new to this stuff too, I don't completely understand how
>> it works.  Apparently hdl.handle.net can <strike>handle</strike> deal with
>> any handle globally, while presumably dx.doi.org can only deal with the
>> subset of handles that are also DOIs.  And apparently you can have a handle
>> resolver that works over something other than HTTP too. (Although Ross
>> argues, why would you want to? And I'm inclined to agree).
>>
>> But appears that the handle system is quite a bit more fleshed out than a
>> simple purl server, it's a distributed protocol-independent network.   The
>> protocol-independent part may or may not be useful, but it certainly seems
>> like it could be, it doens't hurt to provide for it in advance. The
>> distributed part seems pretty cool to me.
>>
>> So if it's no harder to set up, maintain, and use a handle server than a
>> Purl server (this is a big 'if', I'm not sure if that's the case), and
>> handle can do everything purl can do and quite a bit more (I'm pretty sure
>> that is the case)... why NOT use handle instead of purl? It seems like
>> handle is a more fleshed out, robust, full-featured thing than purl.
>>
>> Jonathan
>>
>>
>>
>>
>>     
>>> Presumably dx.hellman.net would need to
>>> harvest its metadata from somewhere, which seems like it would leave a
>>> footprint.  It also needs some mechanism to stay in sync with the
>>> master index.  Your non-resolution service also seems to be looking
>>> these things up in realtime.  Would a RESTful or SOAP API (*shudder*)
>>> not accomplish the same goal?
>>>
>>> Really, though, the binding argument here is less the issue here than
>>> if you believe http URIs are valid identifiers or not since there's no
>>> reason a URI couldn't be dereferenced via other bindings, either.
>>>
>>> -Ross.
>>>
>>>
>>>       
>
>   

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

November 2024
October 2024
September 2024
August 2024
July 2024
June 2024
May 2024
April 2024
March 2024
February 2024
January 2024
December 2023
November 2023
October 2023
September 2023
August 2023
July 2023
June 2023
May 2023
April 2023
March 2023
February 2023
January 2023
December 2022
November 2022
October 2022
September 2022
August 2022
July 2022
June 2022
May 2022
April 2022
March 2022
February 2022
January 2022
December 2021
November 2021
October 2021
September 2021
August 2021
July 2021
June 2021
May 2021
April 2021
March 2021
February 2021
January 2021
December 2020
November 2020
October 2020
September 2020
August 2020
July 2020
June 2020
May 2020
April 2020
March 2020
February 2020
January 2020
December 2019
November 2019
October 2019
September 2019
August 2019
July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003

ATOM RSS1 RSS2



LISTS.CLIR.ORG

CataList Email List Search Powered by the LISTSERV Email List Manager