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Summary

You can use a new Crossref API to query all sorts of interesting things about who funded the research behind the content Crossref members publish.

Background

Back in May 2013 we launched Crossref’s FundRef service. It can be summarized like this:

• Crossref keeps and manages a canonical list of Funder Names (ephemeral) and associated identifiers (persistent).
• We encourage our members (or anybody, really- the list is available under A CC-Zero license waiver) to use this list for collecting information on who funded the research behind the content that our members publish.
• We then ask that our members deposit this data in their normal Crossref metadata deposits.

And that was cool.

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Crossref Labs loves to be the last to jump on an internet trend, so what better than than to combine the Doge meme with altmetrics?

Note: The API calls below have been superceeded with the development of the Event Data project. See the latest API documentation for equivalent functionality

Want to know how many times a Crossref DOI is cited by the Wikipedia?

The South Park movie , “Bigger, Longer & Uncut” has a DOI:

a) http://dx.doi.org/10.5240/B1FA-0EEC-C316-3316-3A73-L

So does the pornographic movie, “Young Sex Crazed Nurses”:

b) http://dx.doi.org/10.5240/4CF3-57AB-2481-651D-D53D-Q

And the following DOI points to a fake article on a “Google-Based Alien Detector”:

c) http://dx.doi.org/10.6084/m9.figshare.93964

And the following DOI refers to an infamous fake article on literary theory:

d) http://dx.doi.org/10.2307/466856

This scholarly article discusses the entirely fictitious Australian “Drop Bear”:

You can now easily search for publications and add them to your ORCID profile in the new beta of Crossref Metadata Search (CRMDS). The user interface is pretty self-explanatory, but if you want to read about it before trying it, here is a summary of how it works.

When you go to to CRMDS, you will see that there is now a small ORCID sign-in button on the top right-hand side of the screen.

We have just released a bunch of new functionality for Crossref Metadata Search. The tool now supports the following features:

• A completely new UI
• Faceted searches
• Copying of search results as formatted citations using CSL
• COinS, so that you can easily import results into Zotero and other document management tools
• An API, so that you can integrate Crossref Metadata Search into your own applications, plugins, etc.
• Basic OpenSearch support- so that you can integrate Crossref Metadata Search into your browser’s search bar.
• Searching for a particular Crossref DOI
• Searching for a particular Crossref ShortDOI
• Searching for articles in a particular journal via the journal’s ISSN

At the moment, Crossref Metadata Search (CRMDS) is a Crossref Labs project and, as such, should be used with some trepidation. Our goal is to release CRMS as a production service ASAP, but we wanted to get public feedback on the service before making the move to a production system.

If you’ve ever thought that scholarly citation practice was antediluvian and perverse- you should check-out patents some day.

Over the past year of so Crossref has been working with Cambia and the The Lens to explore how we can better link scholarly literature to and from the patent literature. The first object of our collaboration was to attempt to link patents hosted on the new, beta version of The Lens to the Scholarly literature. To do this, Crossref and Cambia been enhancing Crossref’s citation matching mechanisms in order to better resolve the wide variety of eclectic and terse patent citation styles to Crossref DOIs.

Last year Crossref and DataCite announced support for HTTP content negotiation for DOI names. Today, we are pleased to report further collaboration on the topic. We think it is very important that the two largest DOI Registration Agencies work together in order to provide metadata services to DOI names.

The current implementation is documented in detail at http://citation.crosscite.org/

The documentation explains HTTP content negotiation as implemented by both Registration Agencies and provides a list of supported resource/content/record types.

PDF-EXTRACT

Crossref Labs is happy to announce the first public release of “pdf-extract” an open source set of tools and libraries for extracting citation references (and, eventually, other semantic metadata) from PDFs. We first demonstrated this tool to Crossref members at our annual meeting last year. See the pdf-extract labs page for a detailed introduction to this new set of tools.

If you are unable to download and install the tool, you can play with a experimental web interface called “Extracto.” Be warned, Extracto is running on very feeble server using an erratic and slow internet connection. The only guarantee that we can make about using it is that it will repeatedly fall over and annoy you. The weasel has spoken.

PHD Comics has posted its Valentine’s Day Reading list.

Without DOIs! 

So in order to preserve the scholarly citation record, we’ve resolved those that have DOIs….

Title:  The St. Valentine’s Day Frontal Passage

Citation:  Sassen, K, 1980, ‘The St. Valentine’s Day Frontal Passage’, Bulletin of the American Meteorological Society, vol. 61, no. 2, p. 122.

Crossref DOI:  http://dx.doi.org/10.1175/1520-0477(1980)061<0122:TSVDFP>2.0.CO;2

Title:  SUICIDE AND HOMICIDE ON ST. VALENTINE’S DAY

Citation:  LESTER, D, 1990, ‘SUICIDE AND HOMICIDE ON ST. VALENTINE’S DAY’, Perceptual and Motor Skills, vol. 71, no. 7, p. 994.

Today two new record types were added to dx.doi.org resolution for Crossref DOIs. These allow anyone to retrieve DOI bibliographic metadata as formatted bibliographic entries. To perform the formatting we’re using the citation style language processor, citeproc-js which supports a shed load of citation styles and locales.

In fact, all the styles and locales found in the CSL repositories, including many common styles such as bibtex, apa, ieee, harvard, vancouver and chicago are supported. First off, if you’d like to try citation formatting without using content negotiation, there’s a simple web UI that allows input of a DOI, style and locale selection. If you’re more into accessing the web via your favorite programming language, have a look at these content negotiation curl examples. To make a request for the new “text/bibliography” record type: $ curl -LH “Accept: text/bibliography; style=bibtex” http://dx.doi.org/10.1038/nrd842 @article{Atkins_Gershell_2002, title={From the analyst’s couch: Selective anticancer drugs}, volume={1}, DOI={10.1038/nrd842}, number={7}, journal={Nature Reviews Drug Discovery}, author={Atkins, Joshua H. and Gershell, Leland J.}, year={2002}, month={Jul}, pages={491-492}} A locale can be specified with the “locale” record type parameter, like this: $ curl -LH “Accept: text/bibliography; style=mla; locale=fr-FR” http://dx.doi.org/10.1038/nrd842 Atkins, Joshua H., et Leland J. Gershell. « From the analyst’s couch: Selective anticancer drugs ». Nature Reviews Drug Discovery 1.7 (2002): 491-492. You may want to process metadata through CSL yourself. For this use case, there’s another new record type, “application/citeproc+json” that returns metadata in a citeproc-friendly JSON form: $ curl -LH “Accept: application/citeproc+json” http://dx.doi.org/10.1038/nrd842 {“volume”:“1”,“issue”:“7”,“DOI”:“10.1038/nrd842”,“title”:“From the analyst’s couch: Selective anticancer drugs”,“container-title”:“Nature Reviews Drug Discovery”,“issued”:{“date-parts”:[[2002,7]]},“author”:[{“family”:“Atkins”,“given”:“Joshua H.”},{“family”:“Gershell”,“given”:“Leland J.”}],“page”:“491-492”,“type”:“article-journal”} Finally, to retrieve lists of supported styles and locales, see: